anno_start	anno_end	anno_text	entity_type	sentence	section
24	34	Xyloglucan	chemical	Molecular Dissection of Xyloglucan Recognition in a Prominent Human Gut Symbiont	TITLE
62	67	Human	species	Molecular Dissection of Xyloglucan Recognition in a Prominent Human Gut Symbiont	TITLE
0	31	Polysaccharide utilization loci	gene	Polysaccharide utilization loci (PUL) within the genomes of resident human gut Bacteroidetes are central to the metabolism of the otherwise indigestible complex carbohydrates known as “dietary fiber.” However, functional characterization of PUL lags significantly behind sequencing efforts, which limits physiological understanding of the human-bacterial symbiosis.	ABSTRACT
33	36	PUL	gene	Polysaccharide utilization loci (PUL) within the genomes of resident human gut Bacteroidetes are central to the metabolism of the otherwise indigestible complex carbohydrates known as “dietary fiber.” However, functional characterization of PUL lags significantly behind sequencing efforts, which limits physiological understanding of the human-bacterial symbiosis.	ABSTRACT
69	74	human	species	Polysaccharide utilization loci (PUL) within the genomes of resident human gut Bacteroidetes are central to the metabolism of the otherwise indigestible complex carbohydrates known as “dietary fiber.” However, functional characterization of PUL lags significantly behind sequencing efforts, which limits physiological understanding of the human-bacterial symbiosis.	ABSTRACT
79	92	Bacteroidetes	taxonomy_domain	Polysaccharide utilization loci (PUL) within the genomes of resident human gut Bacteroidetes are central to the metabolism of the otherwise indigestible complex carbohydrates known as “dietary fiber.” However, functional characterization of PUL lags significantly behind sequencing efforts, which limits physiological understanding of the human-bacterial symbiosis.	ABSTRACT
161	174	carbohydrates	chemical	Polysaccharide utilization loci (PUL) within the genomes of resident human gut Bacteroidetes are central to the metabolism of the otherwise indigestible complex carbohydrates known as “dietary fiber.” However, functional characterization of PUL lags significantly behind sequencing efforts, which limits physiological understanding of the human-bacterial symbiosis.	ABSTRACT
241	244	PUL	gene	Polysaccharide utilization loci (PUL) within the genomes of resident human gut Bacteroidetes are central to the metabolism of the otherwise indigestible complex carbohydrates known as “dietary fiber.” However, functional characterization of PUL lags significantly behind sequencing efforts, which limits physiological understanding of the human-bacterial symbiosis.	ABSTRACT
339	344	human	species	Polysaccharide utilization loci (PUL) within the genomes of resident human gut Bacteroidetes are central to the metabolism of the otherwise indigestible complex carbohydrates known as “dietary fiber.” However, functional characterization of PUL lags significantly behind sequencing efforts, which limits physiological understanding of the human-bacterial symbiosis.	ABSTRACT
345	354	bacterial	taxonomy_domain	Polysaccharide utilization loci (PUL) within the genomes of resident human gut Bacteroidetes are central to the metabolism of the otherwise indigestible complex carbohydrates known as “dietary fiber.” However, functional characterization of PUL lags significantly behind sequencing efforts, which limits physiological understanding of the human-bacterial symbiosis.	ABSTRACT
38	60	complex polysaccharide	chemical	In particular, the molecular basis of complex polysaccharide recognition, an essential prerequisite to hydrolysis by cell surface glycosidases and subsequent metabolism, is generally poorly understood.	ABSTRACT
130	142	glycosidases	protein_type	In particular, the molecular basis of complex polysaccharide recognition, an essential prerequisite to hydrolysis by cell surface glycosidases and subsequent metabolism, is generally poorly understood.	ABSTRACT
21	82	biochemical, structural, and reverse genetic characterization	experimental_method	Here, we present the biochemical, structural, and reverse genetic characterization of two unique cell surface glycan-binding proteins (SGBPs) encoded by a xyloglucan utilization locus (XyGUL) from Bacteroides ovatus, which are integral to growth on this key dietary vegetable polysaccharide.	ABSTRACT
97	133	cell surface glycan-binding proteins	protein_type	Here, we present the biochemical, structural, and reverse genetic characterization of two unique cell surface glycan-binding proteins (SGBPs) encoded by a xyloglucan utilization locus (XyGUL) from Bacteroides ovatus, which are integral to growth on this key dietary vegetable polysaccharide.	ABSTRACT
135	140	SGBPs	protein_type	Here, we present the biochemical, structural, and reverse genetic characterization of two unique cell surface glycan-binding proteins (SGBPs) encoded by a xyloglucan utilization locus (XyGUL) from Bacteroides ovatus, which are integral to growth on this key dietary vegetable polysaccharide.	ABSTRACT
155	183	xyloglucan utilization locus	gene	Here, we present the biochemical, structural, and reverse genetic characterization of two unique cell surface glycan-binding proteins (SGBPs) encoded by a xyloglucan utilization locus (XyGUL) from Bacteroides ovatus, which are integral to growth on this key dietary vegetable polysaccharide.	ABSTRACT
185	190	XyGUL	gene	Here, we present the biochemical, structural, and reverse genetic characterization of two unique cell surface glycan-binding proteins (SGBPs) encoded by a xyloglucan utilization locus (XyGUL) from Bacteroides ovatus, which are integral to growth on this key dietary vegetable polysaccharide.	ABSTRACT
197	215	Bacteroides ovatus	species	Here, we present the biochemical, structural, and reverse genetic characterization of two unique cell surface glycan-binding proteins (SGBPs) encoded by a xyloglucan utilization locus (XyGUL) from Bacteroides ovatus, which are integral to growth on this key dietary vegetable polysaccharide.	ABSTRACT
266	275	vegetable	taxonomy_domain	Here, we present the biochemical, structural, and reverse genetic characterization of two unique cell surface glycan-binding proteins (SGBPs) encoded by a xyloglucan utilization locus (XyGUL) from Bacteroides ovatus, which are integral to growth on this key dietary vegetable polysaccharide.	ABSTRACT
276	290	polysaccharide	chemical	Here, we present the biochemical, structural, and reverse genetic characterization of two unique cell surface glycan-binding proteins (SGBPs) encoded by a xyloglucan utilization locus (XyGUL) from Bacteroides ovatus, which are integral to growth on this key dietary vegetable polysaccharide.	ABSTRACT
0	20	Biochemical analysis	experimental_method	Biochemical analysis reveals that these outer membrane-anchored proteins are in fact exquisitely specific for the highly branched xyloglucan (XyG) polysaccharide.	ABSTRACT
40	72	outer membrane-anchored proteins	protein_type	Biochemical analysis reveals that these outer membrane-anchored proteins are in fact exquisitely specific for the highly branched xyloglucan (XyG) polysaccharide.	ABSTRACT
130	140	xyloglucan	chemical	Biochemical analysis reveals that these outer membrane-anchored proteins are in fact exquisitely specific for the highly branched xyloglucan (XyG) polysaccharide.	ABSTRACT
142	145	XyG	chemical	Biochemical analysis reveals that these outer membrane-anchored proteins are in fact exquisitely specific for the highly branched xyloglucan (XyG) polysaccharide.	ABSTRACT
147	161	polysaccharide	chemical	Biochemical analysis reveals that these outer membrane-anchored proteins are in fact exquisitely specific for the highly branched xyloglucan (XyG) polysaccharide.	ABSTRACT
4	21	crystal structure	evidence	The crystal structure of SGBP-A, a SusD homolog, with a bound XyG tetradecasaccharide reveals an extended carbohydrate-binding platform that primarily relies on recognition of the β-glucan backbone.	ABSTRACT
25	31	SGBP-A	protein	The crystal structure of SGBP-A, a SusD homolog, with a bound XyG tetradecasaccharide reveals an extended carbohydrate-binding platform that primarily relies on recognition of the β-glucan backbone.	ABSTRACT
35	39	SusD	protein	The crystal structure of SGBP-A, a SusD homolog, with a bound XyG tetradecasaccharide reveals an extended carbohydrate-binding platform that primarily relies on recognition of the β-glucan backbone.	ABSTRACT
56	61	bound	protein_state	The crystal structure of SGBP-A, a SusD homolog, with a bound XyG tetradecasaccharide reveals an extended carbohydrate-binding platform that primarily relies on recognition of the β-glucan backbone.	ABSTRACT
62	65	XyG	chemical	The crystal structure of SGBP-A, a SusD homolog, with a bound XyG tetradecasaccharide reveals an extended carbohydrate-binding platform that primarily relies on recognition of the β-glucan backbone.	ABSTRACT
66	85	tetradecasaccharide	chemical	The crystal structure of SGBP-A, a SusD homolog, with a bound XyG tetradecasaccharide reveals an extended carbohydrate-binding platform that primarily relies on recognition of the β-glucan backbone.	ABSTRACT
106	135	carbohydrate-binding platform	site	The crystal structure of SGBP-A, a SusD homolog, with a bound XyG tetradecasaccharide reveals an extended carbohydrate-binding platform that primarily relies on recognition of the β-glucan backbone.	ABSTRACT
180	188	β-glucan	chemical	The crystal structure of SGBP-A, a SusD homolog, with a bound XyG tetradecasaccharide reveals an extended carbohydrate-binding platform that primarily relies on recognition of the β-glucan backbone.	ABSTRACT
12	25	tetra-modular	structure_element	The unique, tetra-modular structure of SGBP-B is comprised of tandem Ig-like folds, with XyG binding mediated at the distal C-terminal domain.	ABSTRACT
26	35	structure	evidence	The unique, tetra-modular structure of SGBP-B is comprised of tandem Ig-like folds, with XyG binding mediated at the distal C-terminal domain.	ABSTRACT
39	45	SGBP-B	protein	The unique, tetra-modular structure of SGBP-B is comprised of tandem Ig-like folds, with XyG binding mediated at the distal C-terminal domain.	ABSTRACT
62	82	tandem Ig-like folds	structure_element	The unique, tetra-modular structure of SGBP-B is comprised of tandem Ig-like folds, with XyG binding mediated at the distal C-terminal domain.	ABSTRACT
89	92	XyG	chemical	The unique, tetra-modular structure of SGBP-B is comprised of tandem Ig-like folds, with XyG binding mediated at the distal C-terminal domain.	ABSTRACT
124	141	C-terminal domain	structure_element	The unique, tetra-modular structure of SGBP-B is comprised of tandem Ig-like folds, with XyG binding mediated at the distal C-terminal domain.	ABSTRACT
27	37	affinities	evidence	Despite displaying similar affinities for XyG, reverse-genetic analysis reveals that SGBP-B is only required for the efficient capture of smaller oligosaccharides, whereas the presence of SGBP-A is more critical than its carbohydrate-binding ability for growth on XyG. Together, these data demonstrate that SGBP-A and SGBP-B play complementary, specialized roles in carbohydrate capture by B. ovatus and elaborate a model of how vegetable xyloglucans are accessed by the Bacteroidetes.	ABSTRACT
42	45	XyG	chemical	Despite displaying similar affinities for XyG, reverse-genetic analysis reveals that SGBP-B is only required for the efficient capture of smaller oligosaccharides, whereas the presence of SGBP-A is more critical than its carbohydrate-binding ability for growth on XyG. Together, these data demonstrate that SGBP-A and SGBP-B play complementary, specialized roles in carbohydrate capture by B. ovatus and elaborate a model of how vegetable xyloglucans are accessed by the Bacteroidetes.	ABSTRACT
47	71	reverse-genetic analysis	experimental_method	Despite displaying similar affinities for XyG, reverse-genetic analysis reveals that SGBP-B is only required for the efficient capture of smaller oligosaccharides, whereas the presence of SGBP-A is more critical than its carbohydrate-binding ability for growth on XyG. Together, these data demonstrate that SGBP-A and SGBP-B play complementary, specialized roles in carbohydrate capture by B. ovatus and elaborate a model of how vegetable xyloglucans are accessed by the Bacteroidetes.	ABSTRACT
85	91	SGBP-B	protein	Despite displaying similar affinities for XyG, reverse-genetic analysis reveals that SGBP-B is only required for the efficient capture of smaller oligosaccharides, whereas the presence of SGBP-A is more critical than its carbohydrate-binding ability for growth on XyG. Together, these data demonstrate that SGBP-A and SGBP-B play complementary, specialized roles in carbohydrate capture by B. ovatus and elaborate a model of how vegetable xyloglucans are accessed by the Bacteroidetes.	ABSTRACT
146	162	oligosaccharides	chemical	Despite displaying similar affinities for XyG, reverse-genetic analysis reveals that SGBP-B is only required for the efficient capture of smaller oligosaccharides, whereas the presence of SGBP-A is more critical than its carbohydrate-binding ability for growth on XyG. Together, these data demonstrate that SGBP-A and SGBP-B play complementary, specialized roles in carbohydrate capture by B. ovatus and elaborate a model of how vegetable xyloglucans are accessed by the Bacteroidetes.	ABSTRACT
188	194	SGBP-A	protein	Despite displaying similar affinities for XyG, reverse-genetic analysis reveals that SGBP-B is only required for the efficient capture of smaller oligosaccharides, whereas the presence of SGBP-A is more critical than its carbohydrate-binding ability for growth on XyG. Together, these data demonstrate that SGBP-A and SGBP-B play complementary, specialized roles in carbohydrate capture by B. ovatus and elaborate a model of how vegetable xyloglucans are accessed by the Bacteroidetes.	ABSTRACT
221	233	carbohydrate	chemical	Despite displaying similar affinities for XyG, reverse-genetic analysis reveals that SGBP-B is only required for the efficient capture of smaller oligosaccharides, whereas the presence of SGBP-A is more critical than its carbohydrate-binding ability for growth on XyG. Together, these data demonstrate that SGBP-A and SGBP-B play complementary, specialized roles in carbohydrate capture by B. ovatus and elaborate a model of how vegetable xyloglucans are accessed by the Bacteroidetes.	ABSTRACT
264	267	XyG	chemical	Despite displaying similar affinities for XyG, reverse-genetic analysis reveals that SGBP-B is only required for the efficient capture of smaller oligosaccharides, whereas the presence of SGBP-A is more critical than its carbohydrate-binding ability for growth on XyG. Together, these data demonstrate that SGBP-A and SGBP-B play complementary, specialized roles in carbohydrate capture by B. ovatus and elaborate a model of how vegetable xyloglucans are accessed by the Bacteroidetes.	ABSTRACT
307	313	SGBP-A	protein	Despite displaying similar affinities for XyG, reverse-genetic analysis reveals that SGBP-B is only required for the efficient capture of smaller oligosaccharides, whereas the presence of SGBP-A is more critical than its carbohydrate-binding ability for growth on XyG. Together, these data demonstrate that SGBP-A and SGBP-B play complementary, specialized roles in carbohydrate capture by B. ovatus and elaborate a model of how vegetable xyloglucans are accessed by the Bacteroidetes.	ABSTRACT
318	324	SGBP-B	protein	Despite displaying similar affinities for XyG, reverse-genetic analysis reveals that SGBP-B is only required for the efficient capture of smaller oligosaccharides, whereas the presence of SGBP-A is more critical than its carbohydrate-binding ability for growth on XyG. Together, these data demonstrate that SGBP-A and SGBP-B play complementary, specialized roles in carbohydrate capture by B. ovatus and elaborate a model of how vegetable xyloglucans are accessed by the Bacteroidetes.	ABSTRACT
366	378	carbohydrate	chemical	Despite displaying similar affinities for XyG, reverse-genetic analysis reveals that SGBP-B is only required for the efficient capture of smaller oligosaccharides, whereas the presence of SGBP-A is more critical than its carbohydrate-binding ability for growth on XyG. Together, these data demonstrate that SGBP-A and SGBP-B play complementary, specialized roles in carbohydrate capture by B. ovatus and elaborate a model of how vegetable xyloglucans are accessed by the Bacteroidetes.	ABSTRACT
390	399	B. ovatus	species	Despite displaying similar affinities for XyG, reverse-genetic analysis reveals that SGBP-B is only required for the efficient capture of smaller oligosaccharides, whereas the presence of SGBP-A is more critical than its carbohydrate-binding ability for growth on XyG. Together, these data demonstrate that SGBP-A and SGBP-B play complementary, specialized roles in carbohydrate capture by B. ovatus and elaborate a model of how vegetable xyloglucans are accessed by the Bacteroidetes.	ABSTRACT
429	438	vegetable	taxonomy_domain	Despite displaying similar affinities for XyG, reverse-genetic analysis reveals that SGBP-B is only required for the efficient capture of smaller oligosaccharides, whereas the presence of SGBP-A is more critical than its carbohydrate-binding ability for growth on XyG. Together, these data demonstrate that SGBP-A and SGBP-B play complementary, specialized roles in carbohydrate capture by B. ovatus and elaborate a model of how vegetable xyloglucans are accessed by the Bacteroidetes.	ABSTRACT
439	450	xyloglucans	chemical	Despite displaying similar affinities for XyG, reverse-genetic analysis reveals that SGBP-B is only required for the efficient capture of smaller oligosaccharides, whereas the presence of SGBP-A is more critical than its carbohydrate-binding ability for growth on XyG. Together, these data demonstrate that SGBP-A and SGBP-B play complementary, specialized roles in carbohydrate capture by B. ovatus and elaborate a model of how vegetable xyloglucans are accessed by the Bacteroidetes.	ABSTRACT
471	484	Bacteroidetes	taxonomy_domain	Despite displaying similar affinities for XyG, reverse-genetic analysis reveals that SGBP-B is only required for the efficient capture of smaller oligosaccharides, whereas the presence of SGBP-A is more critical than its carbohydrate-binding ability for growth on XyG. Together, these data demonstrate that SGBP-A and SGBP-B play complementary, specialized roles in carbohydrate capture by B. ovatus and elaborate a model of how vegetable xyloglucans are accessed by the Bacteroidetes.	ABSTRACT
4	17	Bacteroidetes	taxonomy_domain	The Bacteroidetes are dominant bacteria in the human gut that are responsible for the digestion of the complex polysaccharides that constitute “dietary fiber.” Although this symbiotic relationship has been appreciated for decades, little is currently known about how Bacteroidetes seek out and bind plant cell wall polysaccharides as a necessary first step in their metabolism.	ABSTRACT
31	39	bacteria	taxonomy_domain	The Bacteroidetes are dominant bacteria in the human gut that are responsible for the digestion of the complex polysaccharides that constitute “dietary fiber.” Although this symbiotic relationship has been appreciated for decades, little is currently known about how Bacteroidetes seek out and bind plant cell wall polysaccharides as a necessary first step in their metabolism.	ABSTRACT
47	52	human	species	The Bacteroidetes are dominant bacteria in the human gut that are responsible for the digestion of the complex polysaccharides that constitute “dietary fiber.” Although this symbiotic relationship has been appreciated for decades, little is currently known about how Bacteroidetes seek out and bind plant cell wall polysaccharides as a necessary first step in their metabolism.	ABSTRACT
103	126	complex polysaccharides	chemical	The Bacteroidetes are dominant bacteria in the human gut that are responsible for the digestion of the complex polysaccharides that constitute “dietary fiber.” Although this symbiotic relationship has been appreciated for decades, little is currently known about how Bacteroidetes seek out and bind plant cell wall polysaccharides as a necessary first step in their metabolism.	ABSTRACT
267	280	Bacteroidetes	taxonomy_domain	The Bacteroidetes are dominant bacteria in the human gut that are responsible for the digestion of the complex polysaccharides that constitute “dietary fiber.” Although this symbiotic relationship has been appreciated for decades, little is currently known about how Bacteroidetes seek out and bind plant cell wall polysaccharides as a necessary first step in their metabolism.	ABSTRACT
299	304	plant	taxonomy_domain	The Bacteroidetes are dominant bacteria in the human gut that are responsible for the digestion of the complex polysaccharides that constitute “dietary fiber.” Although this symbiotic relationship has been appreciated for decades, little is currently known about how Bacteroidetes seek out and bind plant cell wall polysaccharides as a necessary first step in their metabolism.	ABSTRACT
315	330	polysaccharides	chemical	The Bacteroidetes are dominant bacteria in the human gut that are responsible for the digestion of the complex polysaccharides that constitute “dietary fiber.” Although this symbiotic relationship has been appreciated for decades, little is currently known about how Bacteroidetes seek out and bind plant cell wall polysaccharides as a necessary first step in their metabolism.	ABSTRACT
27	77	biochemical, crystallographic, and genetic insight	experimental_method	Here, we provide the first biochemical, crystallographic, and genetic insight into how two surface glycan-binding proteins from the complex Bacteroides ovatus xyloglucan utilization locus (XyGUL) enable recognition and uptake of this ubiquitous vegetable polysaccharide.	ABSTRACT
91	122	surface glycan-binding proteins	protein_type	Here, we provide the first biochemical, crystallographic, and genetic insight into how two surface glycan-binding proteins from the complex Bacteroides ovatus xyloglucan utilization locus (XyGUL) enable recognition and uptake of this ubiquitous vegetable polysaccharide.	ABSTRACT
140	158	Bacteroides ovatus	species	Here, we provide the first biochemical, crystallographic, and genetic insight into how two surface glycan-binding proteins from the complex Bacteroides ovatus xyloglucan utilization locus (XyGUL) enable recognition and uptake of this ubiquitous vegetable polysaccharide.	ABSTRACT
159	187	xyloglucan utilization locus	gene	Here, we provide the first biochemical, crystallographic, and genetic insight into how two surface glycan-binding proteins from the complex Bacteroides ovatus xyloglucan utilization locus (XyGUL) enable recognition and uptake of this ubiquitous vegetable polysaccharide.	ABSTRACT
189	194	XyGUL	gene	Here, we provide the first biochemical, crystallographic, and genetic insight into how two surface glycan-binding proteins from the complex Bacteroides ovatus xyloglucan utilization locus (XyGUL) enable recognition and uptake of this ubiquitous vegetable polysaccharide.	ABSTRACT
245	254	vegetable	taxonomy_domain	Here, we provide the first biochemical, crystallographic, and genetic insight into how two surface glycan-binding proteins from the complex Bacteroides ovatus xyloglucan utilization locus (XyGUL) enable recognition and uptake of this ubiquitous vegetable polysaccharide.	ABSTRACT
255	269	polysaccharide	chemical	Here, we provide the first biochemical, crystallographic, and genetic insight into how two surface glycan-binding proteins from the complex Bacteroides ovatus xyloglucan utilization locus (XyGUL) enable recognition and uptake of this ubiquitous vegetable polysaccharide.	ABSTRACT
61	83	complex polysaccharide	chemical	Our combined analysis illuminates new fundamental aspects of complex polysaccharide recognition, cleavage, and import at the Bacteroidetes cell surface that may facilitate the development of prebiotics to target this phylum of gut bacteria.	ABSTRACT
125	138	Bacteroidetes	taxonomy_domain	Our combined analysis illuminates new fundamental aspects of complex polysaccharide recognition, cleavage, and import at the Bacteroidetes cell surface that may facilitate the development of prebiotics to target this phylum of gut bacteria.	ABSTRACT
231	239	bacteria	taxonomy_domain	Our combined analysis illuminates new fundamental aspects of complex polysaccharide recognition, cleavage, and import at the Bacteroidetes cell surface that may facilitate the development of prebiotics to target this phylum of gut bacteria.	ABSTRACT
4	9	human	species	The human gut microbiota influences the course of human development and health, playing key roles in immune stimulation, intestinal cell proliferation, and metabolic balance.	INTRO
14	24	microbiota	taxonomy_domain	The human gut microbiota influences the course of human development and health, playing key roles in immune stimulation, intestinal cell proliferation, and metabolic balance.	INTRO
50	55	human	species	The human gut microbiota influences the course of human development and health, playing key roles in immune stimulation, intestinal cell proliferation, and metabolic balance.	INTRO
5	14	microbial	taxonomy_domain	This microbial community is largely bacterial, with the Bacteroidetes, Firmicutes, and Actinobacteria comprising the dominant phyla.	INTRO
36	45	bacterial	taxonomy_domain	This microbial community is largely bacterial, with the Bacteroidetes, Firmicutes, and Actinobacteria comprising the dominant phyla.	INTRO
56	69	Bacteroidetes	taxonomy_domain	This microbial community is largely bacterial, with the Bacteroidetes, Firmicutes, and Actinobacteria comprising the dominant phyla.	INTRO
71	81	Firmicutes	taxonomy_domain	This microbial community is largely bacterial, with the Bacteroidetes, Firmicutes, and Actinobacteria comprising the dominant phyla.	INTRO
87	101	Actinobacteria	taxonomy_domain	This microbial community is largely bacterial, with the Bacteroidetes, Firmicutes, and Actinobacteria comprising the dominant phyla.	INTRO
35	48	carbohydrates	chemical	The ability to acquire energy from carbohydrates of dietary or host origin is central to the adaptation of human gut bacterial species to their niche.	INTRO
107	112	human	species	The ability to acquire energy from carbohydrates of dietary or host origin is central to the adaptation of human gut bacterial species to their niche.	INTRO
117	126	bacterial	taxonomy_domain	The ability to acquire energy from carbohydrates of dietary or host origin is central to the adaptation of human gut bacterial species to their niche.	INTRO
106	116	microbiota	taxonomy_domain	More importantly, this makes diet a tractable way to manipulate the abundance and metabolic output of the microbiota toward improved human health.	INTRO
133	138	human	species	More importantly, this makes diet a tractable way to manipulate the abundance and metabolic output of the microbiota toward improved human health.	INTRO
68	88	complex carbohydrate	chemical	However, there is a paucity of data regarding how the vast array of complex carbohydrate structures are selectively recognized and imported by members of the microbiota, a critical process that enables these organisms to thrive in the competitive gut environment.	INTRO
158	168	microbiota	taxonomy_domain	However, there is a paucity of data regarding how the vast array of complex carbohydrate structures are selectively recognized and imported by members of the microbiota, a critical process that enables these organisms to thrive in the competitive gut environment.	INTRO
4	9	human	species	The human gut bacteria Bacteroidetes share a profound capacity for dietary glycan degradation, with many species containing >250 predicted carbohydrate-active enzymes (CAZymes), compared to 50 to 100 within many Firmicutes and only 17 in the human genome devoted toward carbohydrate utilization.	INTRO
14	22	bacteria	taxonomy_domain	The human gut bacteria Bacteroidetes share a profound capacity for dietary glycan degradation, with many species containing >250 predicted carbohydrate-active enzymes (CAZymes), compared to 50 to 100 within many Firmicutes and only 17 in the human genome devoted toward carbohydrate utilization.	INTRO
23	36	Bacteroidetes	taxonomy_domain	The human gut bacteria Bacteroidetes share a profound capacity for dietary glycan degradation, with many species containing >250 predicted carbohydrate-active enzymes (CAZymes), compared to 50 to 100 within many Firmicutes and only 17 in the human genome devoted toward carbohydrate utilization.	INTRO
75	81	glycan	chemical	The human gut bacteria Bacteroidetes share a profound capacity for dietary glycan degradation, with many species containing >250 predicted carbohydrate-active enzymes (CAZymes), compared to 50 to 100 within many Firmicutes and only 17 in the human genome devoted toward carbohydrate utilization.	INTRO
212	222	Firmicutes	taxonomy_domain	The human gut bacteria Bacteroidetes share a profound capacity for dietary glycan degradation, with many species containing >250 predicted carbohydrate-active enzymes (CAZymes), compared to 50 to 100 within many Firmicutes and only 17 in the human genome devoted toward carbohydrate utilization.	INTRO
242	247	human	species	The human gut bacteria Bacteroidetes share a profound capacity for dietary glycan degradation, with many species containing >250 predicted carbohydrate-active enzymes (CAZymes), compared to 50 to 100 within many Firmicutes and only 17 in the human genome devoted toward carbohydrate utilization.	INTRO
28	41	Bacteroidetes	taxonomy_domain	A remarkable feature of the Bacteroidetes is the packaging of genes for carbohydrate catabolism into discrete polysaccharide utilization loci (PUL), which are transcriptionally regulated by specific substrate signatures.	INTRO
110	141	polysaccharide utilization loci	gene	A remarkable feature of the Bacteroidetes is the packaging of genes for carbohydrate catabolism into discrete polysaccharide utilization loci (PUL), which are transcriptionally regulated by specific substrate signatures.	INTRO
143	146	PUL	gene	A remarkable feature of the Bacteroidetes is the packaging of genes for carbohydrate catabolism into discrete polysaccharide utilization loci (PUL), which are transcriptionally regulated by specific substrate signatures.	INTRO
15	18	PUL	gene	The archetypal PUL-encoded system is the starch utilization system (Sus) (Fig. 1B) of Bacteroides thetaiotaomicron.	INTRO
41	66	starch utilization system	complex_assembly	The archetypal PUL-encoded system is the starch utilization system (Sus) (Fig. 1B) of Bacteroides thetaiotaomicron.	INTRO
68	71	Sus	complex_assembly	The archetypal PUL-encoded system is the starch utilization system (Sus) (Fig. 1B) of Bacteroides thetaiotaomicron.	INTRO
86	114	Bacteroides thetaiotaomicron	species	The archetypal PUL-encoded system is the starch utilization system (Sus) (Fig. 1B) of Bacteroides thetaiotaomicron.	INTRO
4	7	Sus	complex_assembly	The Sus includes a lipid-anchored, outer membrane endo-amylase, SusG; a TonB-dependent transporter (TBDT), SusC, which imports oligosaccharides with the help of an associated starch-binding protein, SusD; two additional carbohydrate-binding lipoproteins, SusE and SusF; and two periplasmic exo-glucosidases, SusA and SusB, which generate glucose for transport into the cytoplasm.	INTRO
19	33	lipid-anchored	protein_state	The Sus includes a lipid-anchored, outer membrane endo-amylase, SusG; a TonB-dependent transporter (TBDT), SusC, which imports oligosaccharides with the help of an associated starch-binding protein, SusD; two additional carbohydrate-binding lipoproteins, SusE and SusF; and two periplasmic exo-glucosidases, SusA and SusB, which generate glucose for transport into the cytoplasm.	INTRO
50	62	endo-amylase	protein_type	The Sus includes a lipid-anchored, outer membrane endo-amylase, SusG; a TonB-dependent transporter (TBDT), SusC, which imports oligosaccharides with the help of an associated starch-binding protein, SusD; two additional carbohydrate-binding lipoproteins, SusE and SusF; and two periplasmic exo-glucosidases, SusA and SusB, which generate glucose for transport into the cytoplasm.	INTRO
64	68	SusG	protein	The Sus includes a lipid-anchored, outer membrane endo-amylase, SusG; a TonB-dependent transporter (TBDT), SusC, which imports oligosaccharides with the help of an associated starch-binding protein, SusD; two additional carbohydrate-binding lipoproteins, SusE and SusF; and two periplasmic exo-glucosidases, SusA and SusB, which generate glucose for transport into the cytoplasm.	INTRO
72	98	TonB-dependent transporter	protein_type	The Sus includes a lipid-anchored, outer membrane endo-amylase, SusG; a TonB-dependent transporter (TBDT), SusC, which imports oligosaccharides with the help of an associated starch-binding protein, SusD; two additional carbohydrate-binding lipoproteins, SusE and SusF; and two periplasmic exo-glucosidases, SusA and SusB, which generate glucose for transport into the cytoplasm.	INTRO
100	104	TBDT	protein_type	The Sus includes a lipid-anchored, outer membrane endo-amylase, SusG; a TonB-dependent transporter (TBDT), SusC, which imports oligosaccharides with the help of an associated starch-binding protein, SusD; two additional carbohydrate-binding lipoproteins, SusE and SusF; and two periplasmic exo-glucosidases, SusA and SusB, which generate glucose for transport into the cytoplasm.	INTRO
107	111	SusC	protein	The Sus includes a lipid-anchored, outer membrane endo-amylase, SusG; a TonB-dependent transporter (TBDT), SusC, which imports oligosaccharides with the help of an associated starch-binding protein, SusD; two additional carbohydrate-binding lipoproteins, SusE and SusF; and two periplasmic exo-glucosidases, SusA and SusB, which generate glucose for transport into the cytoplasm.	INTRO
127	143	oligosaccharides	chemical	The Sus includes a lipid-anchored, outer membrane endo-amylase, SusG; a TonB-dependent transporter (TBDT), SusC, which imports oligosaccharides with the help of an associated starch-binding protein, SusD; two additional carbohydrate-binding lipoproteins, SusE and SusF; and two periplasmic exo-glucosidases, SusA and SusB, which generate glucose for transport into the cytoplasm.	INTRO
175	197	starch-binding protein	protein_type	The Sus includes a lipid-anchored, outer membrane endo-amylase, SusG; a TonB-dependent transporter (TBDT), SusC, which imports oligosaccharides with the help of an associated starch-binding protein, SusD; two additional carbohydrate-binding lipoproteins, SusE and SusF; and two periplasmic exo-glucosidases, SusA and SusB, which generate glucose for transport into the cytoplasm.	INTRO
199	203	SusD	protein	The Sus includes a lipid-anchored, outer membrane endo-amylase, SusG; a TonB-dependent transporter (TBDT), SusC, which imports oligosaccharides with the help of an associated starch-binding protein, SusD; two additional carbohydrate-binding lipoproteins, SusE and SusF; and two periplasmic exo-glucosidases, SusA and SusB, which generate glucose for transport into the cytoplasm.	INTRO
220	253	carbohydrate-binding lipoproteins	protein_type	The Sus includes a lipid-anchored, outer membrane endo-amylase, SusG; a TonB-dependent transporter (TBDT), SusC, which imports oligosaccharides with the help of an associated starch-binding protein, SusD; two additional carbohydrate-binding lipoproteins, SusE and SusF; and two periplasmic exo-glucosidases, SusA and SusB, which generate glucose for transport into the cytoplasm.	INTRO
255	259	SusE	protein	The Sus includes a lipid-anchored, outer membrane endo-amylase, SusG; a TonB-dependent transporter (TBDT), SusC, which imports oligosaccharides with the help of an associated starch-binding protein, SusD; two additional carbohydrate-binding lipoproteins, SusE and SusF; and two periplasmic exo-glucosidases, SusA and SusB, which generate glucose for transport into the cytoplasm.	INTRO
264	268	SusF	protein	The Sus includes a lipid-anchored, outer membrane endo-amylase, SusG; a TonB-dependent transporter (TBDT), SusC, which imports oligosaccharides with the help of an associated starch-binding protein, SusD; two additional carbohydrate-binding lipoproteins, SusE and SusF; and two periplasmic exo-glucosidases, SusA and SusB, which generate glucose for transport into the cytoplasm.	INTRO
290	306	exo-glucosidases	protein_type	The Sus includes a lipid-anchored, outer membrane endo-amylase, SusG; a TonB-dependent transporter (TBDT), SusC, which imports oligosaccharides with the help of an associated starch-binding protein, SusD; two additional carbohydrate-binding lipoproteins, SusE and SusF; and two periplasmic exo-glucosidases, SusA and SusB, which generate glucose for transport into the cytoplasm.	INTRO
308	312	SusA	protein	The Sus includes a lipid-anchored, outer membrane endo-amylase, SusG; a TonB-dependent transporter (TBDT), SusC, which imports oligosaccharides with the help of an associated starch-binding protein, SusD; two additional carbohydrate-binding lipoproteins, SusE and SusF; and two periplasmic exo-glucosidases, SusA and SusB, which generate glucose for transport into the cytoplasm.	INTRO
317	321	SusB	protein	The Sus includes a lipid-anchored, outer membrane endo-amylase, SusG; a TonB-dependent transporter (TBDT), SusC, which imports oligosaccharides with the help of an associated starch-binding protein, SusD; two additional carbohydrate-binding lipoproteins, SusE and SusF; and two periplasmic exo-glucosidases, SusA and SusB, which generate glucose for transport into the cytoplasm.	INTRO
338	345	glucose	chemical	The Sus includes a lipid-anchored, outer membrane endo-amylase, SusG; a TonB-dependent transporter (TBDT), SusC, which imports oligosaccharides with the help of an associated starch-binding protein, SusD; two additional carbohydrate-binding lipoproteins, SusE and SusF; and two periplasmic exo-glucosidases, SusA and SusB, which generate glucose for transport into the cytoplasm.	INTRO
18	21	PUL	gene	The importance of PUL as a successful evolutionary strategy is underscored by the observation that Bacteroidetes such as B. thetaiotaomicron and Bacteroides ovatus devote ~18% of their genomes to these systems.	INTRO
99	112	Bacteroidetes	taxonomy_domain	The importance of PUL as a successful evolutionary strategy is underscored by the observation that Bacteroidetes such as B. thetaiotaomicron and Bacteroides ovatus devote ~18% of their genomes to these systems.	INTRO
121	140	B. thetaiotaomicron	species	The importance of PUL as a successful evolutionary strategy is underscored by the observation that Bacteroidetes such as B. thetaiotaomicron and Bacteroides ovatus devote ~18% of their genomes to these systems.	INTRO
145	163	Bacteroides ovatus	species	The importance of PUL as a successful evolutionary strategy is underscored by the observation that Bacteroidetes such as B. thetaiotaomicron and Bacteroides ovatus devote ~18% of their genomes to these systems.	INTRO
88	91	PUL	gene	Moving beyond seminal genomic and transcriptomic analyses, the current state-of-the-art PUL characterization involves combined reverse-genetic, biochemical, and structural studies to illuminate the molecular details of PUL function.	INTRO
127	179	reverse-genetic, biochemical, and structural studies	experimental_method	Moving beyond seminal genomic and transcriptomic analyses, the current state-of-the-art PUL characterization involves combined reverse-genetic, biochemical, and structural studies to illuminate the molecular details of PUL function.	INTRO
219	222	PUL	gene	Moving beyond seminal genomic and transcriptomic analyses, the current state-of-the-art PUL characterization involves combined reverse-genetic, biochemical, and structural studies to illuminate the molecular details of PUL function.	INTRO
0	10	Xyloglucan	chemical	Xyloglucan and the Bacteroides ovatus xyloglucan utilization locus (XyGUL). (A) Representative structures of common xyloglucans using the Consortium for Functional Glycomics Symbol Nomenclature (http://www.functionalglycomics.org/static/consortium/Nomenclature.shtml).	FIG
19	37	Bacteroides ovatus	species	Xyloglucan and the Bacteroides ovatus xyloglucan utilization locus (XyGUL). (A) Representative structures of common xyloglucans using the Consortium for Functional Glycomics Symbol Nomenclature (http://www.functionalglycomics.org/static/consortium/Nomenclature.shtml).	FIG
38	66	xyloglucan utilization locus	gene	Xyloglucan and the Bacteroides ovatus xyloglucan utilization locus (XyGUL). (A) Representative structures of common xyloglucans using the Consortium for Functional Glycomics Symbol Nomenclature (http://www.functionalglycomics.org/static/consortium/Nomenclature.shtml).	FIG
68	73	XyGUL	gene	Xyloglucan and the Bacteroides ovatus xyloglucan utilization locus (XyGUL). (A) Representative structures of common xyloglucans using the Consortium for Functional Glycomics Symbol Nomenclature (http://www.functionalglycomics.org/static/consortium/Nomenclature.shtml).	FIG
95	105	structures	evidence	Xyloglucan and the Bacteroides ovatus xyloglucan utilization locus (XyGUL). (A) Representative structures of common xyloglucans using the Consortium for Functional Glycomics Symbol Nomenclature (http://www.functionalglycomics.org/static/consortium/Nomenclature.shtml).	FIG
116	127	xyloglucans	chemical	Xyloglucan and the Bacteroides ovatus xyloglucan utilization locus (XyGUL). (A) Representative structures of common xyloglucans using the Consortium for Functional Glycomics Symbol Nomenclature (http://www.functionalglycomics.org/static/consortium/Nomenclature.shtml).	FIG
19	26	BoXyGUL	gene	Cleavage sites for BoXyGUL glycosidases (GHs) are indicated for solanaceous xyloglucan. (B) BtSus and BoXyGUL. (C) Localization of BoXyGUL-encoded proteins in cellular membranes and concerted modes of action in the degradation of xyloglucans to monosaccharides.	FIG
27	39	glycosidases	protein_type	Cleavage sites for BoXyGUL glycosidases (GHs) are indicated for solanaceous xyloglucan. (B) BtSus and BoXyGUL. (C) Localization of BoXyGUL-encoded proteins in cellular membranes and concerted modes of action in the degradation of xyloglucans to monosaccharides.	FIG
41	44	GHs	protein_type	Cleavage sites for BoXyGUL glycosidases (GHs) are indicated for solanaceous xyloglucan. (B) BtSus and BoXyGUL. (C) Localization of BoXyGUL-encoded proteins in cellular membranes and concerted modes of action in the degradation of xyloglucans to monosaccharides.	FIG
64	75	solanaceous	taxonomy_domain	Cleavage sites for BoXyGUL glycosidases (GHs) are indicated for solanaceous xyloglucan. (B) BtSus and BoXyGUL. (C) Localization of BoXyGUL-encoded proteins in cellular membranes and concerted modes of action in the degradation of xyloglucans to monosaccharides.	FIG
76	86	xyloglucan	chemical	Cleavage sites for BoXyGUL glycosidases (GHs) are indicated for solanaceous xyloglucan. (B) BtSus and BoXyGUL. (C) Localization of BoXyGUL-encoded proteins in cellular membranes and concerted modes of action in the degradation of xyloglucans to monosaccharides.	FIG
92	97	BtSus	gene	Cleavage sites for BoXyGUL glycosidases (GHs) are indicated for solanaceous xyloglucan. (B) BtSus and BoXyGUL. (C) Localization of BoXyGUL-encoded proteins in cellular membranes and concerted modes of action in the degradation of xyloglucans to monosaccharides.	FIG
102	109	BoXyGUL	gene	Cleavage sites for BoXyGUL glycosidases (GHs) are indicated for solanaceous xyloglucan. (B) BtSus and BoXyGUL. (C) Localization of BoXyGUL-encoded proteins in cellular membranes and concerted modes of action in the degradation of xyloglucans to monosaccharides.	FIG
131	138	BoXyGUL	gene	Cleavage sites for BoXyGUL glycosidases (GHs) are indicated for solanaceous xyloglucan. (B) BtSus and BoXyGUL. (C) Localization of BoXyGUL-encoded proteins in cellular membranes and concerted modes of action in the degradation of xyloglucans to monosaccharides.	FIG
230	241	xyloglucans	chemical	Cleavage sites for BoXyGUL glycosidases (GHs) are indicated for solanaceous xyloglucan. (B) BtSus and BoXyGUL. (C) Localization of BoXyGUL-encoded proteins in cellular membranes and concerted modes of action in the degradation of xyloglucans to monosaccharides.	FIG
16	22	SGBP-A	protein	The location of SGBP-A/B is presented in this work; the location of GH5 has been empirically determined, and the enzymes have been placed based upon their predicted cellular location.	FIG
23	24	B	protein	The location of SGBP-A/B is presented in this work; the location of GH5 has been empirically determined, and the enzymes have been placed based upon their predicted cellular location.	FIG
68	71	GH5	protein	The location of SGBP-A/B is presented in this work; the location of GH5 has been empirically determined, and the enzymes have been placed based upon their predicted cellular location.	FIG
66	69	PUL	gene	We recently reported the detailed molecular characterization of a PUL that confers the ability of the human gut commensal B. ovatus ATCC 8483 to grow on a prominent family of plant cell wall glycans, the xyloglucans (XyG).	INTRO
102	107	human	species	We recently reported the detailed molecular characterization of a PUL that confers the ability of the human gut commensal B. ovatus ATCC 8483 to grow on a prominent family of plant cell wall glycans, the xyloglucans (XyG).	INTRO
122	141	B. ovatus ATCC 8483	species	We recently reported the detailed molecular characterization of a PUL that confers the ability of the human gut commensal B. ovatus ATCC 8483 to grow on a prominent family of plant cell wall glycans, the xyloglucans (XyG).	INTRO
175	180	plant	taxonomy_domain	We recently reported the detailed molecular characterization of a PUL that confers the ability of the human gut commensal B. ovatus ATCC 8483 to grow on a prominent family of plant cell wall glycans, the xyloglucans (XyG).	INTRO
191	198	glycans	chemical	We recently reported the detailed molecular characterization of a PUL that confers the ability of the human gut commensal B. ovatus ATCC 8483 to grow on a prominent family of plant cell wall glycans, the xyloglucans (XyG).	INTRO
204	215	xyloglucans	chemical	We recently reported the detailed molecular characterization of a PUL that confers the ability of the human gut commensal B. ovatus ATCC 8483 to grow on a prominent family of plant cell wall glycans, the xyloglucans (XyG).	INTRO
217	220	XyG	chemical	We recently reported the detailed molecular characterization of a PUL that confers the ability of the human gut commensal B. ovatus ATCC 8483 to grow on a prominent family of plant cell wall glycans, the xyloglucans (XyG).	INTRO
0	3	XyG	chemical	XyG variants (Fig. 1A) constitute up to 25% of the dry weight of common vegetables.	INTRO
72	82	vegetables	taxonomy_domain	XyG variants (Fig. 1A) constitute up to 25% of the dry weight of common vegetables.	INTRO
17	26	Sus locus	gene	Analogous to the Sus locus, the xyloglucan utilization locus (XyGUL) encodes a cohort of carbohydrate-binding, -hydrolyzing, and -importing proteins (Fig. 1B and C).	INTRO
32	60	xyloglucan utilization locus	gene	Analogous to the Sus locus, the xyloglucan utilization locus (XyGUL) encodes a cohort of carbohydrate-binding, -hydrolyzing, and -importing proteins (Fig. 1B and C).	INTRO
62	67	XyGUL	gene	Analogous to the Sus locus, the xyloglucan utilization locus (XyGUL) encodes a cohort of carbohydrate-binding, -hydrolyzing, and -importing proteins (Fig. 1B and C).	INTRO
89	148	carbohydrate-binding, -hydrolyzing, and -importing proteins	protein_type	Analogous to the Sus locus, the xyloglucan utilization locus (XyGUL) encodes a cohort of carbohydrate-binding, -hydrolyzing, and -importing proteins (Fig. 1B and C).	INTRO
14	34	glycoside hydrolases	protein_type	The number of glycoside hydrolases (GHs) encoded by the XyGUL is, however, more expansive than that by the Sus locus (Fig. 1B), which reflects the greater complexity of glycosidic linkages found in XyG vis-à-vis starch.	INTRO
36	39	GHs	protein_type	The number of glycoside hydrolases (GHs) encoded by the XyGUL is, however, more expansive than that by the Sus locus (Fig. 1B), which reflects the greater complexity of glycosidic linkages found in XyG vis-à-vis starch.	INTRO
56	61	XyGUL	gene	The number of glycoside hydrolases (GHs) encoded by the XyGUL is, however, more expansive than that by the Sus locus (Fig. 1B), which reflects the greater complexity of glycosidic linkages found in XyG vis-à-vis starch.	INTRO
107	116	Sus locus	gene	The number of glycoside hydrolases (GHs) encoded by the XyGUL is, however, more expansive than that by the Sus locus (Fig. 1B), which reflects the greater complexity of glycosidic linkages found in XyG vis-à-vis starch.	INTRO
198	201	XyG	chemical	The number of glycoside hydrolases (GHs) encoded by the XyGUL is, however, more expansive than that by the Sus locus (Fig. 1B), which reflects the greater complexity of glycosidic linkages found in XyG vis-à-vis starch.	INTRO
212	218	starch	chemical	The number of glycoside hydrolases (GHs) encoded by the XyGUL is, however, more expansive than that by the Sus locus (Fig. 1B), which reflects the greater complexity of glycosidic linkages found in XyG vis-à-vis starch.	INTRO
95	98	GHs	protein_type	Whereas our previous study focused on the characterization of the linkage specificity of these GHs, a key outstanding question regarding this locus is how XyG recognition is mediated at the cell surface.	INTRO
155	158	XyG	chemical	Whereas our previous study focused on the characterization of the linkage specificity of these GHs, a key outstanding question regarding this locus is how XyG recognition is mediated at the cell surface.	INTRO
18	43	starch utilization system	complex_assembly	In the archetypal starch utilization system of B. thetaiotaomicron, starch binding to the cell surface is mediated at eight distinct starch-binding sites distributed among four surface glycan-binding proteins (SGBPs): two within the amylase SusG, one within SusD, two within SusE, and three within SusF. The functional redundancy of many of these sites is high: whereas SusD is essential for growth on starch, combined mutations of the SusE, SusF, and SusG binding sites are required to impair growth on the polysaccharide.	INTRO
47	66	B. thetaiotaomicron	species	In the archetypal starch utilization system of B. thetaiotaomicron, starch binding to the cell surface is mediated at eight distinct starch-binding sites distributed among four surface glycan-binding proteins (SGBPs): two within the amylase SusG, one within SusD, two within SusE, and three within SusF. The functional redundancy of many of these sites is high: whereas SusD is essential for growth on starch, combined mutations of the SusE, SusF, and SusG binding sites are required to impair growth on the polysaccharide.	INTRO
133	153	starch-binding sites	site	In the archetypal starch utilization system of B. thetaiotaomicron, starch binding to the cell surface is mediated at eight distinct starch-binding sites distributed among four surface glycan-binding proteins (SGBPs): two within the amylase SusG, one within SusD, two within SusE, and three within SusF. The functional redundancy of many of these sites is high: whereas SusD is essential for growth on starch, combined mutations of the SusE, SusF, and SusG binding sites are required to impair growth on the polysaccharide.	INTRO
177	208	surface glycan-binding proteins	protein_type	In the archetypal starch utilization system of B. thetaiotaomicron, starch binding to the cell surface is mediated at eight distinct starch-binding sites distributed among four surface glycan-binding proteins (SGBPs): two within the amylase SusG, one within SusD, two within SusE, and three within SusF. The functional redundancy of many of these sites is high: whereas SusD is essential for growth on starch, combined mutations of the SusE, SusF, and SusG binding sites are required to impair growth on the polysaccharide.	INTRO
210	215	SGBPs	protein_type	In the archetypal starch utilization system of B. thetaiotaomicron, starch binding to the cell surface is mediated at eight distinct starch-binding sites distributed among four surface glycan-binding proteins (SGBPs): two within the amylase SusG, one within SusD, two within SusE, and three within SusF. The functional redundancy of many of these sites is high: whereas SusD is essential for growth on starch, combined mutations of the SusE, SusF, and SusG binding sites are required to impair growth on the polysaccharide.	INTRO
233	240	amylase	protein_type	In the archetypal starch utilization system of B. thetaiotaomicron, starch binding to the cell surface is mediated at eight distinct starch-binding sites distributed among four surface glycan-binding proteins (SGBPs): two within the amylase SusG, one within SusD, two within SusE, and three within SusF. The functional redundancy of many of these sites is high: whereas SusD is essential for growth on starch, combined mutations of the SusE, SusF, and SusG binding sites are required to impair growth on the polysaccharide.	INTRO
241	245	SusG	protein	In the archetypal starch utilization system of B. thetaiotaomicron, starch binding to the cell surface is mediated at eight distinct starch-binding sites distributed among four surface glycan-binding proteins (SGBPs): two within the amylase SusG, one within SusD, two within SusE, and three within SusF. The functional redundancy of many of these sites is high: whereas SusD is essential for growth on starch, combined mutations of the SusE, SusF, and SusG binding sites are required to impair growth on the polysaccharide.	INTRO
258	262	SusD	protein	In the archetypal starch utilization system of B. thetaiotaomicron, starch binding to the cell surface is mediated at eight distinct starch-binding sites distributed among four surface glycan-binding proteins (SGBPs): two within the amylase SusG, one within SusD, two within SusE, and three within SusF. The functional redundancy of many of these sites is high: whereas SusD is essential for growth on starch, combined mutations of the SusE, SusF, and SusG binding sites are required to impair growth on the polysaccharide.	INTRO
275	279	SusE	protein	In the archetypal starch utilization system of B. thetaiotaomicron, starch binding to the cell surface is mediated at eight distinct starch-binding sites distributed among four surface glycan-binding proteins (SGBPs): two within the amylase SusG, one within SusD, two within SusE, and three within SusF. The functional redundancy of many of these sites is high: whereas SusD is essential for growth on starch, combined mutations of the SusE, SusF, and SusG binding sites are required to impair growth on the polysaccharide.	INTRO
298	302	SusF	protein	In the archetypal starch utilization system of B. thetaiotaomicron, starch binding to the cell surface is mediated at eight distinct starch-binding sites distributed among four surface glycan-binding proteins (SGBPs): two within the amylase SusG, one within SusD, two within SusE, and three within SusF. The functional redundancy of many of these sites is high: whereas SusD is essential for growth on starch, combined mutations of the SusE, SusF, and SusG binding sites are required to impair growth on the polysaccharide.	INTRO
370	374	SusD	protein	In the archetypal starch utilization system of B. thetaiotaomicron, starch binding to the cell surface is mediated at eight distinct starch-binding sites distributed among four surface glycan-binding proteins (SGBPs): two within the amylase SusG, one within SusD, two within SusE, and three within SusF. The functional redundancy of many of these sites is high: whereas SusD is essential for growth on starch, combined mutations of the SusE, SusF, and SusG binding sites are required to impair growth on the polysaccharide.	INTRO
402	408	starch	chemical	In the archetypal starch utilization system of B. thetaiotaomicron, starch binding to the cell surface is mediated at eight distinct starch-binding sites distributed among four surface glycan-binding proteins (SGBPs): two within the amylase SusG, one within SusD, two within SusE, and three within SusF. The functional redundancy of many of these sites is high: whereas SusD is essential for growth on starch, combined mutations of the SusE, SusF, and SusG binding sites are required to impair growth on the polysaccharide.	INTRO
436	440	SusE	protein	In the archetypal starch utilization system of B. thetaiotaomicron, starch binding to the cell surface is mediated at eight distinct starch-binding sites distributed among four surface glycan-binding proteins (SGBPs): two within the amylase SusG, one within SusD, two within SusE, and three within SusF. The functional redundancy of many of these sites is high: whereas SusD is essential for growth on starch, combined mutations of the SusE, SusF, and SusG binding sites are required to impair growth on the polysaccharide.	INTRO
442	446	SusF	protein	In the archetypal starch utilization system of B. thetaiotaomicron, starch binding to the cell surface is mediated at eight distinct starch-binding sites distributed among four surface glycan-binding proteins (SGBPs): two within the amylase SusG, one within SusD, two within SusE, and three within SusF. The functional redundancy of many of these sites is high: whereas SusD is essential for growth on starch, combined mutations of the SusE, SusF, and SusG binding sites are required to impair growth on the polysaccharide.	INTRO
452	456	SusG	protein	In the archetypal starch utilization system of B. thetaiotaomicron, starch binding to the cell surface is mediated at eight distinct starch-binding sites distributed among four surface glycan-binding proteins (SGBPs): two within the amylase SusG, one within SusD, two within SusE, and three within SusF. The functional redundancy of many of these sites is high: whereas SusD is essential for growth on starch, combined mutations of the SusE, SusF, and SusG binding sites are required to impair growth on the polysaccharide.	INTRO
457	470	binding sites	site	In the archetypal starch utilization system of B. thetaiotaomicron, starch binding to the cell surface is mediated at eight distinct starch-binding sites distributed among four surface glycan-binding proteins (SGBPs): two within the amylase SusG, one within SusD, two within SusE, and three within SusF. The functional redundancy of many of these sites is high: whereas SusD is essential for growth on starch, combined mutations of the SusE, SusF, and SusG binding sites are required to impair growth on the polysaccharide.	INTRO
508	522	polysaccharide	chemical	In the archetypal starch utilization system of B. thetaiotaomicron, starch binding to the cell surface is mediated at eight distinct starch-binding sites distributed among four surface glycan-binding proteins (SGBPs): two within the amylase SusG, one within SusD, two within SusE, and three within SusF. The functional redundancy of many of these sites is high: whereas SusD is essential for growth on starch, combined mutations of the SusE, SusF, and SusG binding sites are required to impair growth on the polysaccharide.	INTRO
0	13	Bacteroidetes	taxonomy_domain	Bacteroidetes PUL ubiquitously encode homologs of SusC and SusD, as well as proteins whose genes are immediately downstream of susD, akin to susE/F, and these are typically annotated as “putative lipoproteins”.	INTRO
14	17	PUL	gene	Bacteroidetes PUL ubiquitously encode homologs of SusC and SusD, as well as proteins whose genes are immediately downstream of susD, akin to susE/F, and these are typically annotated as “putative lipoproteins”.	INTRO
50	54	SusC	protein	Bacteroidetes PUL ubiquitously encode homologs of SusC and SusD, as well as proteins whose genes are immediately downstream of susD, akin to susE/F, and these are typically annotated as “putative lipoproteins”.	INTRO
59	63	SusD	protein	Bacteroidetes PUL ubiquitously encode homologs of SusC and SusD, as well as proteins whose genes are immediately downstream of susD, akin to susE/F, and these are typically annotated as “putative lipoproteins”.	INTRO
127	131	susD	gene	Bacteroidetes PUL ubiquitously encode homologs of SusC and SusD, as well as proteins whose genes are immediately downstream of susD, akin to susE/F, and these are typically annotated as “putative lipoproteins”.	INTRO
141	147	susE/F	gene	Bacteroidetes PUL ubiquitously encode homologs of SusC and SusD, as well as proteins whose genes are immediately downstream of susD, akin to susE/F, and these are typically annotated as “putative lipoproteins”.	INTRO
187	195	putative	protein_state	Bacteroidetes PUL ubiquitously encode homologs of SusC and SusD, as well as proteins whose genes are immediately downstream of susD, akin to susE/F, and these are typically annotated as “putative lipoproteins”.	INTRO
196	208	lipoproteins	protein_type	Bacteroidetes PUL ubiquitously encode homologs of SusC and SusD, as well as proteins whose genes are immediately downstream of susD, akin to susE/F, and these are typically annotated as “putative lipoproteins”.	INTRO
63	69	susE/F	gene	The genes coding for these proteins, sometimes referred to as “susE/F positioned,” display products with a wide variation in amino acid sequence and which have little or no homology to other PUL-encoded proteins or known carbohydrate-binding proteins.	INTRO
191	194	PUL	gene	The genes coding for these proteins, sometimes referred to as “susE/F positioned,” display products with a wide variation in amino acid sequence and which have little or no homology to other PUL-encoded proteins or known carbohydrate-binding proteins.	INTRO
221	250	carbohydrate-binding proteins	protein_type	The genes coding for these proteins, sometimes referred to as “susE/F positioned,” display products with a wide variation in amino acid sequence and which have little or no homology to other PUL-encoded proteins or known carbohydrate-binding proteins.	INTRO
7	10	Sus	complex_assembly	As the Sus SGBPs remain the only structurally characterized cohort to date, we therefore wondered whether such glycan binding and function are extended to other PUL that target more complex and heterogeneous polysaccharides, such as XyG.	INTRO
11	16	SGBPs	protein_type	As the Sus SGBPs remain the only structurally characterized cohort to date, we therefore wondered whether such glycan binding and function are extended to other PUL that target more complex and heterogeneous polysaccharides, such as XyG.	INTRO
111	117	glycan	chemical	As the Sus SGBPs remain the only structurally characterized cohort to date, we therefore wondered whether such glycan binding and function are extended to other PUL that target more complex and heterogeneous polysaccharides, such as XyG.	INTRO
161	164	PUL	gene	As the Sus SGBPs remain the only structurally characterized cohort to date, we therefore wondered whether such glycan binding and function are extended to other PUL that target more complex and heterogeneous polysaccharides, such as XyG.	INTRO
208	223	polysaccharides	chemical	As the Sus SGBPs remain the only structurally characterized cohort to date, we therefore wondered whether such glycan binding and function are extended to other PUL that target more complex and heterogeneous polysaccharides, such as XyG.	INTRO
233	236	XyG	chemical	As the Sus SGBPs remain the only structurally characterized cohort to date, we therefore wondered whether such glycan binding and function are extended to other PUL that target more complex and heterogeneous polysaccharides, such as XyG.	INTRO
30	72	functional and structural characterization	experimental_method	We describe here the detailed functional and structural characterization of the noncatalytic SGBPs encoded by Bacova_02651 and Bacova_02650 of the XyGUL, here referred to as SGBP-A and SGBP-B, to elucidate their molecular roles in carbohydrate acquisition in vivo.	INTRO
80	92	noncatalytic	protein_state	We describe here the detailed functional and structural characterization of the noncatalytic SGBPs encoded by Bacova_02651 and Bacova_02650 of the XyGUL, here referred to as SGBP-A and SGBP-B, to elucidate their molecular roles in carbohydrate acquisition in vivo.	INTRO
93	98	SGBPs	protein_type	We describe here the detailed functional and structural characterization of the noncatalytic SGBPs encoded by Bacova_02651 and Bacova_02650 of the XyGUL, here referred to as SGBP-A and SGBP-B, to elucidate their molecular roles in carbohydrate acquisition in vivo.	INTRO
110	122	Bacova_02651	gene	We describe here the detailed functional and structural characterization of the noncatalytic SGBPs encoded by Bacova_02651 and Bacova_02650 of the XyGUL, here referred to as SGBP-A and SGBP-B, to elucidate their molecular roles in carbohydrate acquisition in vivo.	INTRO
127	139	Bacova_02650	gene	We describe here the detailed functional and structural characterization of the noncatalytic SGBPs encoded by Bacova_02651 and Bacova_02650 of the XyGUL, here referred to as SGBP-A and SGBP-B, to elucidate their molecular roles in carbohydrate acquisition in vivo.	INTRO
147	152	XyGUL	gene	We describe here the detailed functional and structural characterization of the noncatalytic SGBPs encoded by Bacova_02651 and Bacova_02650 of the XyGUL, here referred to as SGBP-A and SGBP-B, to elucidate their molecular roles in carbohydrate acquisition in vivo.	INTRO
174	180	SGBP-A	protein	We describe here the detailed functional and structural characterization of the noncatalytic SGBPs encoded by Bacova_02651 and Bacova_02650 of the XyGUL, here referred to as SGBP-A and SGBP-B, to elucidate their molecular roles in carbohydrate acquisition in vivo.	INTRO
185	191	SGBP-B	protein	We describe here the detailed functional and structural characterization of the noncatalytic SGBPs encoded by Bacova_02651 and Bacova_02650 of the XyGUL, here referred to as SGBP-A and SGBP-B, to elucidate their molecular roles in carbohydrate acquisition in vivo.	INTRO
9	64	biochemical, structural, and reverse-genetic approaches	experimental_method	Combined biochemical, structural, and reverse-genetic approaches clearly illuminate the distinct, yet complementary, functions that these two proteins play in XyG recognition as it impacts the physiology of B. ovatus.	INTRO
159	162	XyG	chemical	Combined biochemical, structural, and reverse-genetic approaches clearly illuminate the distinct, yet complementary, functions that these two proteins play in XyG recognition as it impacts the physiology of B. ovatus.	INTRO
207	216	B. ovatus	species	Combined biochemical, structural, and reverse-genetic approaches clearly illuminate the distinct, yet complementary, functions that these two proteins play in XyG recognition as it impacts the physiology of B. ovatus.	INTRO
60	66	glycan	chemical	These data extend our current understanding of the Sus-like glycan uptake paradigm within the Bacteroidetes and reveals how the complex dietary polysaccharide xyloglucan is recognized at the cell surface.	INTRO
94	107	Bacteroidetes	taxonomy_domain	These data extend our current understanding of the Sus-like glycan uptake paradigm within the Bacteroidetes and reveals how the complex dietary polysaccharide xyloglucan is recognized at the cell surface.	INTRO
144	158	polysaccharide	chemical	These data extend our current understanding of the Sus-like glycan uptake paradigm within the Bacteroidetes and reveals how the complex dietary polysaccharide xyloglucan is recognized at the cell surface.	INTRO
159	169	xyloglucan	chemical	These data extend our current understanding of the Sus-like glycan uptake paradigm within the Bacteroidetes and reveals how the complex dietary polysaccharide xyloglucan is recognized at the cell surface.	INTRO
0	6	SGBP-A	protein	SGBP-A and SGBP-B are cell-surface-localized, xyloglucan-specific binding proteins.	RESULTS
11	17	SGBP-B	protein	SGBP-A and SGBP-B are cell-surface-localized, xyloglucan-specific binding proteins.	RESULTS
22	82	cell-surface-localized, xyloglucan-specific binding proteins	protein_type	SGBP-A and SGBP-B are cell-surface-localized, xyloglucan-specific binding proteins.	RESULTS
0	6	SGBP-A	protein	SGBP-A, encoded by the XyGUL locus tag Bacova_02651 (Fig. 1B), shares 26% amino acid sequence identity (40% similarity) with its homolog, B. thetaiotaomicron SusD, and similar homology with the SusD-like proteins encoded within syntenic XyGUL identified in our earlier work.	RESULTS
23	28	XyGUL	gene	SGBP-A, encoded by the XyGUL locus tag Bacova_02651 (Fig. 1B), shares 26% amino acid sequence identity (40% similarity) with its homolog, B. thetaiotaomicron SusD, and similar homology with the SusD-like proteins encoded within syntenic XyGUL identified in our earlier work.	RESULTS
39	51	Bacova_02651	gene	SGBP-A, encoded by the XyGUL locus tag Bacova_02651 (Fig. 1B), shares 26% amino acid sequence identity (40% similarity) with its homolog, B. thetaiotaomicron SusD, and similar homology with the SusD-like proteins encoded within syntenic XyGUL identified in our earlier work.	RESULTS
138	157	B. thetaiotaomicron	species	SGBP-A, encoded by the XyGUL locus tag Bacova_02651 (Fig. 1B), shares 26% amino acid sequence identity (40% similarity) with its homolog, B. thetaiotaomicron SusD, and similar homology with the SusD-like proteins encoded within syntenic XyGUL identified in our earlier work.	RESULTS
158	162	SusD	protein	SGBP-A, encoded by the XyGUL locus tag Bacova_02651 (Fig. 1B), shares 26% amino acid sequence identity (40% similarity) with its homolog, B. thetaiotaomicron SusD, and similar homology with the SusD-like proteins encoded within syntenic XyGUL identified in our earlier work.	RESULTS
194	212	SusD-like proteins	protein_type	SGBP-A, encoded by the XyGUL locus tag Bacova_02651 (Fig. 1B), shares 26% amino acid sequence identity (40% similarity) with its homolog, B. thetaiotaomicron SusD, and similar homology with the SusD-like proteins encoded within syntenic XyGUL identified in our earlier work.	RESULTS
237	242	XyGUL	gene	SGBP-A, encoded by the XyGUL locus tag Bacova_02651 (Fig. 1B), shares 26% amino acid sequence identity (40% similarity) with its homolog, B. thetaiotaomicron SusD, and similar homology with the SusD-like proteins encoded within syntenic XyGUL identified in our earlier work.	RESULTS
13	19	SGBP-B	protein	In contrast, SGBP-B, encoded by locus tag Bacova_02650, displays little sequence similarity to the products of similarly positioned genes in syntenic XyGUL nor to any other gene product among the diversity of Bacteroidetes PUL.	RESULTS
42	54	Bacova_02650	gene	In contrast, SGBP-B, encoded by locus tag Bacova_02650, displays little sequence similarity to the products of similarly positioned genes in syntenic XyGUL nor to any other gene product among the diversity of Bacteroidetes PUL.	RESULTS
150	155	XyGUL	gene	In contrast, SGBP-B, encoded by locus tag Bacova_02650, displays little sequence similarity to the products of similarly positioned genes in syntenic XyGUL nor to any other gene product among the diversity of Bacteroidetes PUL.	RESULTS
209	222	Bacteroidetes	taxonomy_domain	In contrast, SGBP-B, encoded by locus tag Bacova_02650, displays little sequence similarity to the products of similarly positioned genes in syntenic XyGUL nor to any other gene product among the diversity of Bacteroidetes PUL.	RESULTS
223	226	PUL	gene	In contrast, SGBP-B, encoded by locus tag Bacova_02650, displays little sequence similarity to the products of similarly positioned genes in syntenic XyGUL nor to any other gene product among the diversity of Bacteroidetes PUL.	RESULTS
34	38	SusC	protein	Whereas sequence similarity among SusC/SusD homolog pairs often serves as a hallmark for PUL identification, the sequence similarities of downstream genes encoding SGBPs are generally too low to allow reliable bioinformatic classification of their products into protein families, let alone prediction of function.	RESULTS
39	43	SusD	protein	Whereas sequence similarity among SusC/SusD homolog pairs often serves as a hallmark for PUL identification, the sequence similarities of downstream genes encoding SGBPs are generally too low to allow reliable bioinformatic classification of their products into protein families, let alone prediction of function.	RESULTS
89	92	PUL	gene	Whereas sequence similarity among SusC/SusD homolog pairs often serves as a hallmark for PUL identification, the sequence similarities of downstream genes encoding SGBPs are generally too low to allow reliable bioinformatic classification of their products into protein families, let alone prediction of function.	RESULTS
164	169	SGBPs	protein_type	Whereas sequence similarity among SusC/SusD homolog pairs often serves as a hallmark for PUL identification, the sequence similarities of downstream genes encoding SGBPs are generally too low to allow reliable bioinformatic classification of their products into protein families, let alone prediction of function.	RESULTS
103	106	PUL	gene	Hence, there is a critical need for the elucidation of detailed structure-function relationships among PUL SGBPs, in light of the manifold glycan structures in nature.	RESULTS
107	112	SGBPs	protein_type	Hence, there is a critical need for the elucidation of detailed structure-function relationships among PUL SGBPs, in light of the manifold glycan structures in nature.	RESULTS
139	145	glycan	chemical	Hence, there is a critical need for the elucidation of detailed structure-function relationships among PUL SGBPs, in light of the manifold glycan structures in nature.	RESULTS
0	18	Immunofluorescence	experimental_method	Immunofluorescence of formaldehyde-fixed, nonpermeabilized cells grown in minimal medium with XyG as the sole carbon source to induce XyGUL expression, reveals that both SGBP-A and SGBP-B are presented on the cell surface by N-terminal lipidation, as predicted by signal peptide analysis with SignalP (Fig. 2).	RESULTS
94	97	XyG	chemical	Immunofluorescence of formaldehyde-fixed, nonpermeabilized cells grown in minimal medium with XyG as the sole carbon source to induce XyGUL expression, reveals that both SGBP-A and SGBP-B are presented on the cell surface by N-terminal lipidation, as predicted by signal peptide analysis with SignalP (Fig. 2).	RESULTS
134	139	XyGUL	gene	Immunofluorescence of formaldehyde-fixed, nonpermeabilized cells grown in minimal medium with XyG as the sole carbon source to induce XyGUL expression, reveals that both SGBP-A and SGBP-B are presented on the cell surface by N-terminal lipidation, as predicted by signal peptide analysis with SignalP (Fig. 2).	RESULTS
170	176	SGBP-A	protein	Immunofluorescence of formaldehyde-fixed, nonpermeabilized cells grown in minimal medium with XyG as the sole carbon source to induce XyGUL expression, reveals that both SGBP-A and SGBP-B are presented on the cell surface by N-terminal lipidation, as predicted by signal peptide analysis with SignalP (Fig. 2).	RESULTS
181	187	SGBP-B	protein	Immunofluorescence of formaldehyde-fixed, nonpermeabilized cells grown in minimal medium with XyG as the sole carbon source to induce XyGUL expression, reveals that both SGBP-A and SGBP-B are presented on the cell surface by N-terminal lipidation, as predicted by signal peptide analysis with SignalP (Fig. 2).	RESULTS
236	246	lipidation	ptm	Immunofluorescence of formaldehyde-fixed, nonpermeabilized cells grown in minimal medium with XyG as the sole carbon source to induce XyGUL expression, reveals that both SGBP-A and SGBP-B are presented on the cell surface by N-terminal lipidation, as predicted by signal peptide analysis with SignalP (Fig. 2).	RESULTS
10	15	SGBPs	protein_type	Here, the SGBPs very likely work in concert with the cell-surface-localized endo-xyloglucanase B. ovatus GH5 (BoGH5) to recruit and cleave XyG for subsequent periplasmic import via the SusC-like TBDT of the XyGUL (Fig. 1B and C).	RESULTS
53	94	cell-surface-localized endo-xyloglucanase	protein_type	Here, the SGBPs very likely work in concert with the cell-surface-localized endo-xyloglucanase B. ovatus GH5 (BoGH5) to recruit and cleave XyG for subsequent periplasmic import via the SusC-like TBDT of the XyGUL (Fig. 1B and C).	RESULTS
95	104	B. ovatus	species	Here, the SGBPs very likely work in concert with the cell-surface-localized endo-xyloglucanase B. ovatus GH5 (BoGH5) to recruit and cleave XyG for subsequent periplasmic import via the SusC-like TBDT of the XyGUL (Fig. 1B and C).	RESULTS
105	108	GH5	protein	Here, the SGBPs very likely work in concert with the cell-surface-localized endo-xyloglucanase B. ovatus GH5 (BoGH5) to recruit and cleave XyG for subsequent periplasmic import via the SusC-like TBDT of the XyGUL (Fig. 1B and C).	RESULTS
110	115	BoGH5	protein	Here, the SGBPs very likely work in concert with the cell-surface-localized endo-xyloglucanase B. ovatus GH5 (BoGH5) to recruit and cleave XyG for subsequent periplasmic import via the SusC-like TBDT of the XyGUL (Fig. 1B and C).	RESULTS
139	142	XyG	chemical	Here, the SGBPs very likely work in concert with the cell-surface-localized endo-xyloglucanase B. ovatus GH5 (BoGH5) to recruit and cleave XyG for subsequent periplasmic import via the SusC-like TBDT of the XyGUL (Fig. 1B and C).	RESULTS
185	199	SusC-like TBDT	protein_type	Here, the SGBPs very likely work in concert with the cell-surface-localized endo-xyloglucanase B. ovatus GH5 (BoGH5) to recruit and cleave XyG for subsequent periplasmic import via the SusC-like TBDT of the XyGUL (Fig. 1B and C).	RESULTS
207	212	XyGUL	gene	Here, the SGBPs very likely work in concert with the cell-surface-localized endo-xyloglucanase B. ovatus GH5 (BoGH5) to recruit and cleave XyG for subsequent periplasmic import via the SusC-like TBDT of the XyGUL (Fig. 1B and C).	RESULTS
0	6	SGBP-A	protein	SGBP-A and SGBP-B visualized by immunofluorescence.	FIG
11	17	SGBP-B	protein	SGBP-A and SGBP-B visualized by immunofluorescence.	FIG
32	50	immunofluorescence	experimental_method	SGBP-A and SGBP-B visualized by immunofluorescence.	FIG
33	42	B. ovatus	species	Formalin-fixed, nonpermeabilized B. ovatus cells were grown in minimal medium plus XyG, probed with custom rabbit antibodies to SGBP-A or SGBP-B, and then stained with Alexa Fluor 488 goat anti-rabbit IgG. (A) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-A. (B) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-B. (C) Bright-field image of ΔSGBP-B cells labeled with anti-SGBP-B antibodies.	FIG
83	86	XyG	chemical	Formalin-fixed, nonpermeabilized B. ovatus cells were grown in minimal medium plus XyG, probed with custom rabbit antibodies to SGBP-A or SGBP-B, and then stained with Alexa Fluor 488 goat anti-rabbit IgG. (A) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-A. (B) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-B. (C) Bright-field image of ΔSGBP-B cells labeled with anti-SGBP-B antibodies.	FIG
128	134	SGBP-A	protein	Formalin-fixed, nonpermeabilized B. ovatus cells were grown in minimal medium plus XyG, probed with custom rabbit antibodies to SGBP-A or SGBP-B, and then stained with Alexa Fluor 488 goat anti-rabbit IgG. (A) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-A. (B) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-B. (C) Bright-field image of ΔSGBP-B cells labeled with anti-SGBP-B antibodies.	FIG
138	144	SGBP-B	protein	Formalin-fixed, nonpermeabilized B. ovatus cells were grown in minimal medium plus XyG, probed with custom rabbit antibodies to SGBP-A or SGBP-B, and then stained with Alexa Fluor 488 goat anti-rabbit IgG. (A) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-A. (B) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-B. (C) Bright-field image of ΔSGBP-B cells labeled with anti-SGBP-B antibodies.	FIG
210	217	Overlay	experimental_method	Formalin-fixed, nonpermeabilized B. ovatus cells were grown in minimal medium plus XyG, probed with custom rabbit antibodies to SGBP-A or SGBP-B, and then stained with Alexa Fluor 488 goat anti-rabbit IgG. (A) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-A. (B) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-B. (C) Bright-field image of ΔSGBP-B cells labeled with anti-SGBP-B antibodies.	FIG
221	249	bright-field and FITC images	evidence	Formalin-fixed, nonpermeabilized B. ovatus cells were grown in minimal medium plus XyG, probed with custom rabbit antibodies to SGBP-A or SGBP-B, and then stained with Alexa Fluor 488 goat anti-rabbit IgG. (A) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-A. (B) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-B. (C) Bright-field image of ΔSGBP-B cells labeled with anti-SGBP-B antibodies.	FIG
253	262	B. ovatus	species	Formalin-fixed, nonpermeabilized B. ovatus cells were grown in minimal medium plus XyG, probed with custom rabbit antibodies to SGBP-A or SGBP-B, and then stained with Alexa Fluor 488 goat anti-rabbit IgG. (A) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-A. (B) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-B. (C) Bright-field image of ΔSGBP-B cells labeled with anti-SGBP-B antibodies.	FIG
299	306	Overlay	experimental_method	Formalin-fixed, nonpermeabilized B. ovatus cells were grown in minimal medium plus XyG, probed with custom rabbit antibodies to SGBP-A or SGBP-B, and then stained with Alexa Fluor 488 goat anti-rabbit IgG. (A) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-A. (B) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-B. (C) Bright-field image of ΔSGBP-B cells labeled with anti-SGBP-B antibodies.	FIG
310	338	bright-field and FITC images	evidence	Formalin-fixed, nonpermeabilized B. ovatus cells were grown in minimal medium plus XyG, probed with custom rabbit antibodies to SGBP-A or SGBP-B, and then stained with Alexa Fluor 488 goat anti-rabbit IgG. (A) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-A. (B) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-B. (C) Bright-field image of ΔSGBP-B cells labeled with anti-SGBP-B antibodies.	FIG
342	351	B. ovatus	species	Formalin-fixed, nonpermeabilized B. ovatus cells were grown in minimal medium plus XyG, probed with custom rabbit antibodies to SGBP-A or SGBP-B, and then stained with Alexa Fluor 488 goat anti-rabbit IgG. (A) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-A. (B) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-B. (C) Bright-field image of ΔSGBP-B cells labeled with anti-SGBP-B antibodies.	FIG
388	406	Bright-field image	evidence	Formalin-fixed, nonpermeabilized B. ovatus cells were grown in minimal medium plus XyG, probed with custom rabbit antibodies to SGBP-A or SGBP-B, and then stained with Alexa Fluor 488 goat anti-rabbit IgG. (A) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-A. (B) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-B. (C) Bright-field image of ΔSGBP-B cells labeled with anti-SGBP-B antibodies.	FIG
410	417	ΔSGBP-B	mutant	Formalin-fixed, nonpermeabilized B. ovatus cells were grown in minimal medium plus XyG, probed with custom rabbit antibodies to SGBP-A or SGBP-B, and then stained with Alexa Fluor 488 goat anti-rabbit IgG. (A) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-A. (B) Overlay of bright-field and FITC images of B. ovatus cells labeled with anti-SGBP-B. (C) Bright-field image of ΔSGBP-B cells labeled with anti-SGBP-B antibodies.	FIG
4	15	FITC images	evidence	(D) FITC images of ΔSGBP-B cells labeled with anti-SGBP-B antibodies.	FIG
19	26	ΔSGBP-B	mutant	(D) FITC images of ΔSGBP-B cells labeled with anti-SGBP-B antibodies.	FIG
6	13	lacking	protein_state	Cells lacking SGBP-A (ΔSGBP-A) do not grow on XyG and therefore could not be tested in parallel.	FIG
14	20	SGBP-A	protein	Cells lacking SGBP-A (ΔSGBP-A) do not grow on XyG and therefore could not be tested in parallel.	FIG
22	29	ΔSGBP-A	mutant	Cells lacking SGBP-A (ΔSGBP-A) do not grow on XyG and therefore could not be tested in parallel.	FIG
46	49	XyG	chemical	Cells lacking SGBP-A (ΔSGBP-A) do not grow on XyG and therefore could not be tested in parallel.	FIG
71	91	glycoside hydrolases	protein_type	In our initial study focused on the functional characterization of the glycoside hydrolases of the XyGUL, we reported preliminary affinity PAGE and isothermal titration calorimetry (ITC) data indicating that both SGBP-A and SGBP-B are competent xyloglucan-binding proteins (affinity constant [Ka] values of 3.74 × 105 M−1 and 4.98 × 104 M−1, respectively [23]).	RESULTS
99	104	XyGUL	gene	In our initial study focused on the functional characterization of the glycoside hydrolases of the XyGUL, we reported preliminary affinity PAGE and isothermal titration calorimetry (ITC) data indicating that both SGBP-A and SGBP-B are competent xyloglucan-binding proteins (affinity constant [Ka] values of 3.74 × 105 M−1 and 4.98 × 104 M−1, respectively [23]).	RESULTS
130	143	affinity PAGE	experimental_method	In our initial study focused on the functional characterization of the glycoside hydrolases of the XyGUL, we reported preliminary affinity PAGE and isothermal titration calorimetry (ITC) data indicating that both SGBP-A and SGBP-B are competent xyloglucan-binding proteins (affinity constant [Ka] values of 3.74 × 105 M−1 and 4.98 × 104 M−1, respectively [23]).	RESULTS
148	180	isothermal titration calorimetry	experimental_method	In our initial study focused on the functional characterization of the glycoside hydrolases of the XyGUL, we reported preliminary affinity PAGE and isothermal titration calorimetry (ITC) data indicating that both SGBP-A and SGBP-B are competent xyloglucan-binding proteins (affinity constant [Ka] values of 3.74 × 105 M−1 and 4.98 × 104 M−1, respectively [23]).	RESULTS
182	185	ITC	experimental_method	In our initial study focused on the functional characterization of the glycoside hydrolases of the XyGUL, we reported preliminary affinity PAGE and isothermal titration calorimetry (ITC) data indicating that both SGBP-A and SGBP-B are competent xyloglucan-binding proteins (affinity constant [Ka] values of 3.74 × 105 M−1 and 4.98 × 104 M−1, respectively [23]).	RESULTS
213	219	SGBP-A	protein	In our initial study focused on the functional characterization of the glycoside hydrolases of the XyGUL, we reported preliminary affinity PAGE and isothermal titration calorimetry (ITC) data indicating that both SGBP-A and SGBP-B are competent xyloglucan-binding proteins (affinity constant [Ka] values of 3.74 × 105 M−1 and 4.98 × 104 M−1, respectively [23]).	RESULTS
224	230	SGBP-B	protein	In our initial study focused on the functional characterization of the glycoside hydrolases of the XyGUL, we reported preliminary affinity PAGE and isothermal titration calorimetry (ITC) data indicating that both SGBP-A and SGBP-B are competent xyloglucan-binding proteins (affinity constant [Ka] values of 3.74 × 105 M−1 and 4.98 × 104 M−1, respectively [23]).	RESULTS
245	272	xyloglucan-binding proteins	protein_type	In our initial study focused on the functional characterization of the glycoside hydrolases of the XyGUL, we reported preliminary affinity PAGE and isothermal titration calorimetry (ITC) data indicating that both SGBP-A and SGBP-B are competent xyloglucan-binding proteins (affinity constant [Ka] values of 3.74 × 105 M−1 and 4.98 × 104 M−1, respectively [23]).	RESULTS
274	291	affinity constant	evidence	In our initial study focused on the functional characterization of the glycoside hydrolases of the XyGUL, we reported preliminary affinity PAGE and isothermal titration calorimetry (ITC) data indicating that both SGBP-A and SGBP-B are competent xyloglucan-binding proteins (affinity constant [Ka] values of 3.74 × 105 M−1 and 4.98 × 104 M−1, respectively [23]).	RESULTS
293	295	Ka	evidence	In our initial study focused on the functional characterization of the glycoside hydrolases of the XyGUL, we reported preliminary affinity PAGE and isothermal titration calorimetry (ITC) data indicating that both SGBP-A and SGBP-B are competent xyloglucan-binding proteins (affinity constant [Ka] values of 3.74 × 105 M−1 and 4.98 × 104 M−1, respectively [23]).	RESULTS
11	24	affinity PAGE	experimental_method	Additional affinity PAGE analysis (Fig. 3) demonstrates that SGBP-A also has moderate affinity for the artificial soluble cellulose derivative hydroxyethyl cellulose [HEC; a β(1 → 4)-glucan] and limited affinity for mixed-linkage β(1→3)/β(1→4)-glucan (MLG) and glucomannan (GM; mixed glucosyl and mannosyl backbone), which together indicate general binding to polysaccharide backbone residues and major contributions from side-chain recognition.	RESULTS
61	67	SGBP-A	protein	Additional affinity PAGE analysis (Fig. 3) demonstrates that SGBP-A also has moderate affinity for the artificial soluble cellulose derivative hydroxyethyl cellulose [HEC; a β(1 → 4)-glucan] and limited affinity for mixed-linkage β(1→3)/β(1→4)-glucan (MLG) and glucomannan (GM; mixed glucosyl and mannosyl backbone), which together indicate general binding to polysaccharide backbone residues and major contributions from side-chain recognition.	RESULTS
143	165	hydroxyethyl cellulose	chemical	Additional affinity PAGE analysis (Fig. 3) demonstrates that SGBP-A also has moderate affinity for the artificial soluble cellulose derivative hydroxyethyl cellulose [HEC; a β(1 → 4)-glucan] and limited affinity for mixed-linkage β(1→3)/β(1→4)-glucan (MLG) and glucomannan (GM; mixed glucosyl and mannosyl backbone), which together indicate general binding to polysaccharide backbone residues and major contributions from side-chain recognition.	RESULTS
167	170	HEC	chemical	Additional affinity PAGE analysis (Fig. 3) demonstrates that SGBP-A also has moderate affinity for the artificial soluble cellulose derivative hydroxyethyl cellulose [HEC; a β(1 → 4)-glucan] and limited affinity for mixed-linkage β(1→3)/β(1→4)-glucan (MLG) and glucomannan (GM; mixed glucosyl and mannosyl backbone), which together indicate general binding to polysaccharide backbone residues and major contributions from side-chain recognition.	RESULTS
174	189	β(1 → 4)-glucan	chemical	Additional affinity PAGE analysis (Fig. 3) demonstrates that SGBP-A also has moderate affinity for the artificial soluble cellulose derivative hydroxyethyl cellulose [HEC; a β(1 → 4)-glucan] and limited affinity for mixed-linkage β(1→3)/β(1→4)-glucan (MLG) and glucomannan (GM; mixed glucosyl and mannosyl backbone), which together indicate general binding to polysaccharide backbone residues and major contributions from side-chain recognition.	RESULTS
216	250	mixed-linkage β(1→3)/β(1→4)-glucan	chemical	Additional affinity PAGE analysis (Fig. 3) demonstrates that SGBP-A also has moderate affinity for the artificial soluble cellulose derivative hydroxyethyl cellulose [HEC; a β(1 → 4)-glucan] and limited affinity for mixed-linkage β(1→3)/β(1→4)-glucan (MLG) and glucomannan (GM; mixed glucosyl and mannosyl backbone), which together indicate general binding to polysaccharide backbone residues and major contributions from side-chain recognition.	RESULTS
252	255	MLG	chemical	Additional affinity PAGE analysis (Fig. 3) demonstrates that SGBP-A also has moderate affinity for the artificial soluble cellulose derivative hydroxyethyl cellulose [HEC; a β(1 → 4)-glucan] and limited affinity for mixed-linkage β(1→3)/β(1→4)-glucan (MLG) and glucomannan (GM; mixed glucosyl and mannosyl backbone), which together indicate general binding to polysaccharide backbone residues and major contributions from side-chain recognition.	RESULTS
261	272	glucomannan	chemical	Additional affinity PAGE analysis (Fig. 3) demonstrates that SGBP-A also has moderate affinity for the artificial soluble cellulose derivative hydroxyethyl cellulose [HEC; a β(1 → 4)-glucan] and limited affinity for mixed-linkage β(1→3)/β(1→4)-glucan (MLG) and glucomannan (GM; mixed glucosyl and mannosyl backbone), which together indicate general binding to polysaccharide backbone residues and major contributions from side-chain recognition.	RESULTS
274	276	GM	chemical	Additional affinity PAGE analysis (Fig. 3) demonstrates that SGBP-A also has moderate affinity for the artificial soluble cellulose derivative hydroxyethyl cellulose [HEC; a β(1 → 4)-glucan] and limited affinity for mixed-linkage β(1→3)/β(1→4)-glucan (MLG) and glucomannan (GM; mixed glucosyl and mannosyl backbone), which together indicate general binding to polysaccharide backbone residues and major contributions from side-chain recognition.	RESULTS
284	292	glucosyl	chemical	Additional affinity PAGE analysis (Fig. 3) demonstrates that SGBP-A also has moderate affinity for the artificial soluble cellulose derivative hydroxyethyl cellulose [HEC; a β(1 → 4)-glucan] and limited affinity for mixed-linkage β(1→3)/β(1→4)-glucan (MLG) and glucomannan (GM; mixed glucosyl and mannosyl backbone), which together indicate general binding to polysaccharide backbone residues and major contributions from side-chain recognition.	RESULTS
297	305	mannosyl	chemical	Additional affinity PAGE analysis (Fig. 3) demonstrates that SGBP-A also has moderate affinity for the artificial soluble cellulose derivative hydroxyethyl cellulose [HEC; a β(1 → 4)-glucan] and limited affinity for mixed-linkage β(1→3)/β(1→4)-glucan (MLG) and glucomannan (GM; mixed glucosyl and mannosyl backbone), which together indicate general binding to polysaccharide backbone residues and major contributions from side-chain recognition.	RESULTS
360	374	polysaccharide	chemical	Additional affinity PAGE analysis (Fig. 3) demonstrates that SGBP-A also has moderate affinity for the artificial soluble cellulose derivative hydroxyethyl cellulose [HEC; a β(1 → 4)-glucan] and limited affinity for mixed-linkage β(1→3)/β(1→4)-glucan (MLG) and glucomannan (GM; mixed glucosyl and mannosyl backbone), which together indicate general binding to polysaccharide backbone residues and major contributions from side-chain recognition.	RESULTS
13	19	SGBP-B	protein	In contrast, SGBP-B bound to HEC more weakly than SGBP-A and did not bind to MLG or GM.	RESULTS
29	32	HEC	chemical	In contrast, SGBP-B bound to HEC more weakly than SGBP-A and did not bind to MLG or GM.	RESULTS
50	56	SGBP-A	protein	In contrast, SGBP-B bound to HEC more weakly than SGBP-A and did not bind to MLG or GM.	RESULTS
77	80	MLG	chemical	In contrast, SGBP-B bound to HEC more weakly than SGBP-A and did not bind to MLG or GM.	RESULTS
84	86	GM	chemical	In contrast, SGBP-B bound to HEC more weakly than SGBP-A and did not bind to MLG or GM.	RESULTS
8	12	SGBP	protein_type	Neither SGBP recognized galactomannan (GGM), starch, carboxymethylcellulose, or mucin (see Fig. S1 in the supplemental material).	RESULTS
24	37	galactomannan	chemical	Neither SGBP recognized galactomannan (GGM), starch, carboxymethylcellulose, or mucin (see Fig. S1 in the supplemental material).	RESULTS
39	42	GGM	chemical	Neither SGBP recognized galactomannan (GGM), starch, carboxymethylcellulose, or mucin (see Fig. S1 in the supplemental material).	RESULTS
45	51	starch	chemical	Neither SGBP recognized galactomannan (GGM), starch, carboxymethylcellulose, or mucin (see Fig. S1 in the supplemental material).	RESULTS
53	75	carboxymethylcellulose	chemical	Neither SGBP recognized galactomannan (GGM), starch, carboxymethylcellulose, or mucin (see Fig. S1 in the supplemental material).	RESULTS
80	85	mucin	chemical	Neither SGBP recognized galactomannan (GGM), starch, carboxymethylcellulose, or mucin (see Fig. S1 in the supplemental material).	RESULTS
60	66	SGBP-A	protein	Together, these results highlight the high specificities of SGBP-A and SGBP-B for XyG, which is concordant with their association with XyG-specific GHs in the XyGUL, as well as transcriptomic analysis indicating that B. ovatus has discrete PUL for MLG, GM, and GGM (11).	RESULTS
71	77	SGBP-B	protein	Together, these results highlight the high specificities of SGBP-A and SGBP-B for XyG, which is concordant with their association with XyG-specific GHs in the XyGUL, as well as transcriptomic analysis indicating that B. ovatus has discrete PUL for MLG, GM, and GGM (11).	RESULTS
82	85	XyG	chemical	Together, these results highlight the high specificities of SGBP-A and SGBP-B for XyG, which is concordant with their association with XyG-specific GHs in the XyGUL, as well as transcriptomic analysis indicating that B. ovatus has discrete PUL for MLG, GM, and GGM (11).	RESULTS
135	151	XyG-specific GHs	protein_type	Together, these results highlight the high specificities of SGBP-A and SGBP-B for XyG, which is concordant with their association with XyG-specific GHs in the XyGUL, as well as transcriptomic analysis indicating that B. ovatus has discrete PUL for MLG, GM, and GGM (11).	RESULTS
159	164	XyGUL	gene	Together, these results highlight the high specificities of SGBP-A and SGBP-B for XyG, which is concordant with their association with XyG-specific GHs in the XyGUL, as well as transcriptomic analysis indicating that B. ovatus has discrete PUL for MLG, GM, and GGM (11).	RESULTS
217	226	B. ovatus	species	Together, these results highlight the high specificities of SGBP-A and SGBP-B for XyG, which is concordant with their association with XyG-specific GHs in the XyGUL, as well as transcriptomic analysis indicating that B. ovatus has discrete PUL for MLG, GM, and GGM (11).	RESULTS
240	243	PUL	gene	Together, these results highlight the high specificities of SGBP-A and SGBP-B for XyG, which is concordant with their association with XyG-specific GHs in the XyGUL, as well as transcriptomic analysis indicating that B. ovatus has discrete PUL for MLG, GM, and GGM (11).	RESULTS
248	251	MLG	chemical	Together, these results highlight the high specificities of SGBP-A and SGBP-B for XyG, which is concordant with their association with XyG-specific GHs in the XyGUL, as well as transcriptomic analysis indicating that B. ovatus has discrete PUL for MLG, GM, and GGM (11).	RESULTS
253	255	GM	chemical	Together, these results highlight the high specificities of SGBP-A and SGBP-B for XyG, which is concordant with their association with XyG-specific GHs in the XyGUL, as well as transcriptomic analysis indicating that B. ovatus has discrete PUL for MLG, GM, and GGM (11).	RESULTS
261	264	GGM	chemical	Together, these results highlight the high specificities of SGBP-A and SGBP-B for XyG, which is concordant with their association with XyG-specific GHs in the XyGUL, as well as transcriptomic analysis indicating that B. ovatus has discrete PUL for MLG, GM, and GGM (11).	RESULTS
24	52	carbohydrate-binding modules	site	Notably, the absence of carbohydrate-binding modules in the GHs encoded by the XyGUL implies that noncatalytic recognition of xyloglucan is mediated entirely by SGBP-A and -B.	RESULTS
60	63	GHs	protein_type	Notably, the absence of carbohydrate-binding modules in the GHs encoded by the XyGUL implies that noncatalytic recognition of xyloglucan is mediated entirely by SGBP-A and -B.	RESULTS
79	84	XyGUL	gene	Notably, the absence of carbohydrate-binding modules in the GHs encoded by the XyGUL implies that noncatalytic recognition of xyloglucan is mediated entirely by SGBP-A and -B.	RESULTS
126	136	xyloglucan	chemical	Notably, the absence of carbohydrate-binding modules in the GHs encoded by the XyGUL implies that noncatalytic recognition of xyloglucan is mediated entirely by SGBP-A and -B.	RESULTS
161	167	SGBP-A	protein	Notably, the absence of carbohydrate-binding modules in the GHs encoded by the XyGUL implies that noncatalytic recognition of xyloglucan is mediated entirely by SGBP-A and -B.	RESULTS
172	174	-B	protein	Notably, the absence of carbohydrate-binding modules in the GHs encoded by the XyGUL implies that noncatalytic recognition of xyloglucan is mediated entirely by SGBP-A and -B.	RESULTS
0	6	SGBP-A	protein	SGBP-A and SGBP-B preferentially bind xyloglucan.	FIG
11	17	SGBP-B	protein	SGBP-A and SGBP-B preferentially bind xyloglucan.	FIG
38	48	xyloglucan	chemical	SGBP-A and SGBP-B preferentially bind xyloglucan.	FIG
0	24	Affinity electrophoresis	experimental_method	Affinity electrophoresis (10% acrylamide) of SGBP-A and SGBP-B with BSA as a control protein.	FIG
45	51	SGBP-A	protein	Affinity electrophoresis (10% acrylamide) of SGBP-A and SGBP-B with BSA as a control protein.	FIG
56	62	SGBP-B	protein	Affinity electrophoresis (10% acrylamide) of SGBP-A and SGBP-B with BSA as a control protein.	FIG
68	71	BSA	protein	Affinity electrophoresis (10% acrylamide) of SGBP-A and SGBP-B with BSA as a control protein.	FIG
52	55	BSA	protein	All samples were loaded on the same gel next to the BSA controls; thin black lines indicate where intervening lanes were removed from the final image for both space and clarity.	FIG
18	32	polysaccharide	chemical	The percentage of polysaccharide incorporated into each native gel is displayed.	FIG
13	31	endo-xyloglucanase	protein_type	The vanguard endo-xyloglucanase of the XyGUL, BoGH5, preferentially cleaves the polysaccharide at unbranched glucosyl residues to generate xylogluco-oligosaccharides (XyGOs) comprising a Glc4 backbone with variable side-chain galactosylation (XyGO1) (Fig. 1A; n = 1) as the limit of digestion products in vitro; controlled digestion and fractionation by size exclusion chromatography allow the production of higher-order oligosaccharides (e.g., XyGO2) (Fig. 1A; n = 2).	RESULTS
39	44	XyGUL	gene	The vanguard endo-xyloglucanase of the XyGUL, BoGH5, preferentially cleaves the polysaccharide at unbranched glucosyl residues to generate xylogluco-oligosaccharides (XyGOs) comprising a Glc4 backbone with variable side-chain galactosylation (XyGO1) (Fig. 1A; n = 1) as the limit of digestion products in vitro; controlled digestion and fractionation by size exclusion chromatography allow the production of higher-order oligosaccharides (e.g., XyGO2) (Fig. 1A; n = 2).	RESULTS
46	51	BoGH5	protein	The vanguard endo-xyloglucanase of the XyGUL, BoGH5, preferentially cleaves the polysaccharide at unbranched glucosyl residues to generate xylogluco-oligosaccharides (XyGOs) comprising a Glc4 backbone with variable side-chain galactosylation (XyGO1) (Fig. 1A; n = 1) as the limit of digestion products in vitro; controlled digestion and fractionation by size exclusion chromatography allow the production of higher-order oligosaccharides (e.g., XyGO2) (Fig. 1A; n = 2).	RESULTS
80	94	polysaccharide	chemical	The vanguard endo-xyloglucanase of the XyGUL, BoGH5, preferentially cleaves the polysaccharide at unbranched glucosyl residues to generate xylogluco-oligosaccharides (XyGOs) comprising a Glc4 backbone with variable side-chain galactosylation (XyGO1) (Fig. 1A; n = 1) as the limit of digestion products in vitro; controlled digestion and fractionation by size exclusion chromatography allow the production of higher-order oligosaccharides (e.g., XyGO2) (Fig. 1A; n = 2).	RESULTS
109	117	glucosyl	chemical	The vanguard endo-xyloglucanase of the XyGUL, BoGH5, preferentially cleaves the polysaccharide at unbranched glucosyl residues to generate xylogluco-oligosaccharides (XyGOs) comprising a Glc4 backbone with variable side-chain galactosylation (XyGO1) (Fig. 1A; n = 1) as the limit of digestion products in vitro; controlled digestion and fractionation by size exclusion chromatography allow the production of higher-order oligosaccharides (e.g., XyGO2) (Fig. 1A; n = 2).	RESULTS
139	165	xylogluco-oligosaccharides	chemical	The vanguard endo-xyloglucanase of the XyGUL, BoGH5, preferentially cleaves the polysaccharide at unbranched glucosyl residues to generate xylogluco-oligosaccharides (XyGOs) comprising a Glc4 backbone with variable side-chain galactosylation (XyGO1) (Fig. 1A; n = 1) as the limit of digestion products in vitro; controlled digestion and fractionation by size exclusion chromatography allow the production of higher-order oligosaccharides (e.g., XyGO2) (Fig. 1A; n = 2).	RESULTS
167	172	XyGOs	chemical	The vanguard endo-xyloglucanase of the XyGUL, BoGH5, preferentially cleaves the polysaccharide at unbranched glucosyl residues to generate xylogluco-oligosaccharides (XyGOs) comprising a Glc4 backbone with variable side-chain galactosylation (XyGO1) (Fig. 1A; n = 1) as the limit of digestion products in vitro; controlled digestion and fractionation by size exclusion chromatography allow the production of higher-order oligosaccharides (e.g., XyGO2) (Fig. 1A; n = 2).	RESULTS
187	200	Glc4 backbone	structure_element	The vanguard endo-xyloglucanase of the XyGUL, BoGH5, preferentially cleaves the polysaccharide at unbranched glucosyl residues to generate xylogluco-oligosaccharides (XyGOs) comprising a Glc4 backbone with variable side-chain galactosylation (XyGO1) (Fig. 1A; n = 1) as the limit of digestion products in vitro; controlled digestion and fractionation by size exclusion chromatography allow the production of higher-order oligosaccharides (e.g., XyGO2) (Fig. 1A; n = 2).	RESULTS
206	241	variable side-chain galactosylation	structure_element	The vanguard endo-xyloglucanase of the XyGUL, BoGH5, preferentially cleaves the polysaccharide at unbranched glucosyl residues to generate xylogluco-oligosaccharides (XyGOs) comprising a Glc4 backbone with variable side-chain galactosylation (XyGO1) (Fig. 1A; n = 1) as the limit of digestion products in vitro; controlled digestion and fractionation by size exclusion chromatography allow the production of higher-order oligosaccharides (e.g., XyGO2) (Fig. 1A; n = 2).	RESULTS
243	248	XyGO1	chemical	The vanguard endo-xyloglucanase of the XyGUL, BoGH5, preferentially cleaves the polysaccharide at unbranched glucosyl residues to generate xylogluco-oligosaccharides (XyGOs) comprising a Glc4 backbone with variable side-chain galactosylation (XyGO1) (Fig. 1A; n = 1) as the limit of digestion products in vitro; controlled digestion and fractionation by size exclusion chromatography allow the production of higher-order oligosaccharides (e.g., XyGO2) (Fig. 1A; n = 2).	RESULTS
312	350	controlled digestion and fractionation	experimental_method	The vanguard endo-xyloglucanase of the XyGUL, BoGH5, preferentially cleaves the polysaccharide at unbranched glucosyl residues to generate xylogluco-oligosaccharides (XyGOs) comprising a Glc4 backbone with variable side-chain galactosylation (XyGO1) (Fig. 1A; n = 1) as the limit of digestion products in vitro; controlled digestion and fractionation by size exclusion chromatography allow the production of higher-order oligosaccharides (e.g., XyGO2) (Fig. 1A; n = 2).	RESULTS
354	383	size exclusion chromatography	experimental_method	The vanguard endo-xyloglucanase of the XyGUL, BoGH5, preferentially cleaves the polysaccharide at unbranched glucosyl residues to generate xylogluco-oligosaccharides (XyGOs) comprising a Glc4 backbone with variable side-chain galactosylation (XyGO1) (Fig. 1A; n = 1) as the limit of digestion products in vitro; controlled digestion and fractionation by size exclusion chromatography allow the production of higher-order oligosaccharides (e.g., XyGO2) (Fig. 1A; n = 2).	RESULTS
421	437	oligosaccharides	chemical	The vanguard endo-xyloglucanase of the XyGUL, BoGH5, preferentially cleaves the polysaccharide at unbranched glucosyl residues to generate xylogluco-oligosaccharides (XyGOs) comprising a Glc4 backbone with variable side-chain galactosylation (XyGO1) (Fig. 1A; n = 1) as the limit of digestion products in vitro; controlled digestion and fractionation by size exclusion chromatography allow the production of higher-order oligosaccharides (e.g., XyGO2) (Fig. 1A; n = 2).	RESULTS
445	450	XyGO2	chemical	The vanguard endo-xyloglucanase of the XyGUL, BoGH5, preferentially cleaves the polysaccharide at unbranched glucosyl residues to generate xylogluco-oligosaccharides (XyGOs) comprising a Glc4 backbone with variable side-chain galactosylation (XyGO1) (Fig. 1A; n = 1) as the limit of digestion products in vitro; controlled digestion and fractionation by size exclusion chromatography allow the production of higher-order oligosaccharides (e.g., XyGO2) (Fig. 1A; n = 2).	RESULTS
0	3	ITC	experimental_method	ITC demonstrates that SGBP-A binds to XyG polysaccharide and XyGO2 (based on a Glc8 backbone) with essentially equal affinities, while no binding of XyGO1 (Glc4 backbone) was detectable (Table 1; see Fig. S2 and S3 in the supplemental material).	RESULTS
22	28	SGBP-A	protein	ITC demonstrates that SGBP-A binds to XyG polysaccharide and XyGO2 (based on a Glc8 backbone) with essentially equal affinities, while no binding of XyGO1 (Glc4 backbone) was detectable (Table 1; see Fig. S2 and S3 in the supplemental material).	RESULTS
38	41	XyG	chemical	ITC demonstrates that SGBP-A binds to XyG polysaccharide and XyGO2 (based on a Glc8 backbone) with essentially equal affinities, while no binding of XyGO1 (Glc4 backbone) was detectable (Table 1; see Fig. S2 and S3 in the supplemental material).	RESULTS
42	56	polysaccharide	chemical	ITC demonstrates that SGBP-A binds to XyG polysaccharide and XyGO2 (based on a Glc8 backbone) with essentially equal affinities, while no binding of XyGO1 (Glc4 backbone) was detectable (Table 1; see Fig. S2 and S3 in the supplemental material).	RESULTS
61	66	XyGO2	chemical	ITC demonstrates that SGBP-A binds to XyG polysaccharide and XyGO2 (based on a Glc8 backbone) with essentially equal affinities, while no binding of XyGO1 (Glc4 backbone) was detectable (Table 1; see Fig. S2 and S3 in the supplemental material).	RESULTS
79	92	Glc8 backbone	structure_element	ITC demonstrates that SGBP-A binds to XyG polysaccharide and XyGO2 (based on a Glc8 backbone) with essentially equal affinities, while no binding of XyGO1 (Glc4 backbone) was detectable (Table 1; see Fig. S2 and S3 in the supplemental material).	RESULTS
117	127	affinities	evidence	ITC demonstrates that SGBP-A binds to XyG polysaccharide and XyGO2 (based on a Glc8 backbone) with essentially equal affinities, while no binding of XyGO1 (Glc4 backbone) was detectable (Table 1; see Fig. S2 and S3 in the supplemental material).	RESULTS
149	154	XyGO1	chemical	ITC demonstrates that SGBP-A binds to XyG polysaccharide and XyGO2 (based on a Glc8 backbone) with essentially equal affinities, while no binding of XyGO1 (Glc4 backbone) was detectable (Table 1; see Fig. S2 and S3 in the supplemental material).	RESULTS
156	169	Glc4 backbone	structure_element	ITC demonstrates that SGBP-A binds to XyG polysaccharide and XyGO2 (based on a Glc8 backbone) with essentially equal affinities, while no binding of XyGO1 (Glc4 backbone) was detectable (Table 1; see Fig. S2 and S3 in the supplemental material).	RESULTS
11	17	SGBP-B	protein	Similarly, SGBP-B also bound to XyG and XyGO2 with approximately equal affinities, although in both cases, Ka values were nearly 10-fold lower than those for SGBP-A. Also in contrast to SGBP-A, SGBP-B also bound to XyGO1, yet the affinity for this minimal repeating unit was poor, with a Ka value of ca. 1 order of magnitude lower than for XyG and XyGO2.	RESULTS
23	31	bound to	protein_state	Similarly, SGBP-B also bound to XyG and XyGO2 with approximately equal affinities, although in both cases, Ka values were nearly 10-fold lower than those for SGBP-A. Also in contrast to SGBP-A, SGBP-B also bound to XyGO1, yet the affinity for this minimal repeating unit was poor, with a Ka value of ca. 1 order of magnitude lower than for XyG and XyGO2.	RESULTS
32	35	XyG	chemical	Similarly, SGBP-B also bound to XyG and XyGO2 with approximately equal affinities, although in both cases, Ka values were nearly 10-fold lower than those for SGBP-A. Also in contrast to SGBP-A, SGBP-B also bound to XyGO1, yet the affinity for this minimal repeating unit was poor, with a Ka value of ca. 1 order of magnitude lower than for XyG and XyGO2.	RESULTS
40	45	XyGO2	chemical	Similarly, SGBP-B also bound to XyG and XyGO2 with approximately equal affinities, although in both cases, Ka values were nearly 10-fold lower than those for SGBP-A. Also in contrast to SGBP-A, SGBP-B also bound to XyGO1, yet the affinity for this minimal repeating unit was poor, with a Ka value of ca. 1 order of magnitude lower than for XyG and XyGO2.	RESULTS
71	81	affinities	evidence	Similarly, SGBP-B also bound to XyG and XyGO2 with approximately equal affinities, although in both cases, Ka values were nearly 10-fold lower than those for SGBP-A. Also in contrast to SGBP-A, SGBP-B also bound to XyGO1, yet the affinity for this minimal repeating unit was poor, with a Ka value of ca. 1 order of magnitude lower than for XyG and XyGO2.	RESULTS
107	109	Ka	evidence	Similarly, SGBP-B also bound to XyG and XyGO2 with approximately equal affinities, although in both cases, Ka values were nearly 10-fold lower than those for SGBP-A. Also in contrast to SGBP-A, SGBP-B also bound to XyGO1, yet the affinity for this minimal repeating unit was poor, with a Ka value of ca. 1 order of magnitude lower than for XyG and XyGO2.	RESULTS
158	164	SGBP-A	protein	Similarly, SGBP-B also bound to XyG and XyGO2 with approximately equal affinities, although in both cases, Ka values were nearly 10-fold lower than those for SGBP-A. Also in contrast to SGBP-A, SGBP-B also bound to XyGO1, yet the affinity for this minimal repeating unit was poor, with a Ka value of ca. 1 order of magnitude lower than for XyG and XyGO2.	RESULTS
186	192	SGBP-A	protein	Similarly, SGBP-B also bound to XyG and XyGO2 with approximately equal affinities, although in both cases, Ka values were nearly 10-fold lower than those for SGBP-A. Also in contrast to SGBP-A, SGBP-B also bound to XyGO1, yet the affinity for this minimal repeating unit was poor, with a Ka value of ca. 1 order of magnitude lower than for XyG and XyGO2.	RESULTS
194	200	SGBP-B	protein	Similarly, SGBP-B also bound to XyG and XyGO2 with approximately equal affinities, although in both cases, Ka values were nearly 10-fold lower than those for SGBP-A. Also in contrast to SGBP-A, SGBP-B also bound to XyGO1, yet the affinity for this minimal repeating unit was poor, with a Ka value of ca. 1 order of magnitude lower than for XyG and XyGO2.	RESULTS
206	214	bound to	protein_state	Similarly, SGBP-B also bound to XyG and XyGO2 with approximately equal affinities, although in both cases, Ka values were nearly 10-fold lower than those for SGBP-A. Also in contrast to SGBP-A, SGBP-B also bound to XyGO1, yet the affinity for this minimal repeating unit was poor, with a Ka value of ca. 1 order of magnitude lower than for XyG and XyGO2.	RESULTS
215	220	XyGO1	chemical	Similarly, SGBP-B also bound to XyG and XyGO2 with approximately equal affinities, although in both cases, Ka values were nearly 10-fold lower than those for SGBP-A. Also in contrast to SGBP-A, SGBP-B also bound to XyGO1, yet the affinity for this minimal repeating unit was poor, with a Ka value of ca. 1 order of magnitude lower than for XyG and XyGO2.	RESULTS
230	238	affinity	evidence	Similarly, SGBP-B also bound to XyG and XyGO2 with approximately equal affinities, although in both cases, Ka values were nearly 10-fold lower than those for SGBP-A. Also in contrast to SGBP-A, SGBP-B also bound to XyGO1, yet the affinity for this minimal repeating unit was poor, with a Ka value of ca. 1 order of magnitude lower than for XyG and XyGO2.	RESULTS
248	270	minimal repeating unit	structure_element	Similarly, SGBP-B also bound to XyG and XyGO2 with approximately equal affinities, although in both cases, Ka values were nearly 10-fold lower than those for SGBP-A. Also in contrast to SGBP-A, SGBP-B also bound to XyGO1, yet the affinity for this minimal repeating unit was poor, with a Ka value of ca. 1 order of magnitude lower than for XyG and XyGO2.	RESULTS
288	290	Ka	evidence	Similarly, SGBP-B also bound to XyG and XyGO2 with approximately equal affinities, although in both cases, Ka values were nearly 10-fold lower than those for SGBP-A. Also in contrast to SGBP-A, SGBP-B also bound to XyGO1, yet the affinity for this minimal repeating unit was poor, with a Ka value of ca. 1 order of magnitude lower than for XyG and XyGO2.	RESULTS
340	343	XyG	chemical	Similarly, SGBP-B also bound to XyG and XyGO2 with approximately equal affinities, although in both cases, Ka values were nearly 10-fold lower than those for SGBP-A. Also in contrast to SGBP-A, SGBP-B also bound to XyGO1, yet the affinity for this minimal repeating unit was poor, with a Ka value of ca. 1 order of magnitude lower than for XyG and XyGO2.	RESULTS
348	353	XyGO2	chemical	Similarly, SGBP-B also bound to XyG and XyGO2 with approximately equal affinities, although in both cases, Ka values were nearly 10-fold lower than those for SGBP-A. Also in contrast to SGBP-A, SGBP-B also bound to XyGO1, yet the affinity for this minimal repeating unit was poor, with a Ka value of ca. 1 order of magnitude lower than for XyG and XyGO2.	RESULTS
42	56	polysaccharide	chemical	Together, these data clearly suggest that polysaccharide binding of both SGBPs is fulfilled by a dimer of the minimal repeat, corresponding to XyGO2 (cf.	RESULTS
73	78	SGBPs	protein_type	Together, these data clearly suggest that polysaccharide binding of both SGBPs is fulfilled by a dimer of the minimal repeat, corresponding to XyGO2 (cf.	RESULTS
97	102	dimer	oligomeric_state	Together, these data clearly suggest that polysaccharide binding of both SGBPs is fulfilled by a dimer of the minimal repeat, corresponding to XyGO2 (cf.	RESULTS
110	124	minimal repeat	structure_element	Together, these data clearly suggest that polysaccharide binding of both SGBPs is fulfilled by a dimer of the minimal repeat, corresponding to XyGO2 (cf.	RESULTS
143	148	XyGO2	chemical	Together, these data clearly suggest that polysaccharide binding of both SGBPs is fulfilled by a dimer of the minimal repeat, corresponding to XyGO2 (cf.	RESULTS
19	32	affinity PAGE	experimental_method	The observation by affinity PAGE that these proteins specifically recognize XyG is further substantiated by their lack of binding for the undecorated oligosaccharide cellotetraose (Table 1; see Fig. S3).	RESULTS
76	79	XyG	chemical	The observation by affinity PAGE that these proteins specifically recognize XyG is further substantiated by their lack of binding for the undecorated oligosaccharide cellotetraose (Table 1; see Fig. S3).	RESULTS
150	165	oligosaccharide	chemical	The observation by affinity PAGE that these proteins specifically recognize XyG is further substantiated by their lack of binding for the undecorated oligosaccharide cellotetraose (Table 1; see Fig. S3).	RESULTS
166	179	cellotetraose	chemical	The observation by affinity PAGE that these proteins specifically recognize XyG is further substantiated by their lack of binding for the undecorated oligosaccharide cellotetraose (Table 1; see Fig. S3).	RESULTS
13	19	SGBP-A	protein	Furthermore, SGBP-A binds cellohexaose with ~770-fold weaker affinity than XyG, while SGBP-B displays no detectable binding to this linear hexasaccharide.	RESULTS
26	38	cellohexaose	chemical	Furthermore, SGBP-A binds cellohexaose with ~770-fold weaker affinity than XyG, while SGBP-B displays no detectable binding to this linear hexasaccharide.	RESULTS
61	69	affinity	evidence	Furthermore, SGBP-A binds cellohexaose with ~770-fold weaker affinity than XyG, while SGBP-B displays no detectable binding to this linear hexasaccharide.	RESULTS
75	78	XyG	chemical	Furthermore, SGBP-A binds cellohexaose with ~770-fold weaker affinity than XyG, while SGBP-B displays no detectable binding to this linear hexasaccharide.	RESULTS
86	92	SGBP-B	protein	Furthermore, SGBP-A binds cellohexaose with ~770-fold weaker affinity than XyG, while SGBP-B displays no detectable binding to this linear hexasaccharide.	RESULTS
139	153	hexasaccharide	chemical	Furthermore, SGBP-A binds cellohexaose with ~770-fold weaker affinity than XyG, while SGBP-B displays no detectable binding to this linear hexasaccharide.	RESULTS
48	53	XyGUL	gene	To provide molecular-level insight into how the XyGUL SGBPs equip B. ovatus to specifically harvest XyG from the gut environment, we performed X-ray crystallography analysis of both SGBP-A and SGPB-B in oligosaccharide-complex forms.	RESULTS
54	59	SGBPs	protein_type	To provide molecular-level insight into how the XyGUL SGBPs equip B. ovatus to specifically harvest XyG from the gut environment, we performed X-ray crystallography analysis of both SGBP-A and SGPB-B in oligosaccharide-complex forms.	RESULTS
66	75	B. ovatus	species	To provide molecular-level insight into how the XyGUL SGBPs equip B. ovatus to specifically harvest XyG from the gut environment, we performed X-ray crystallography analysis of both SGBP-A and SGPB-B in oligosaccharide-complex forms.	RESULTS
100	103	XyG	chemical	To provide molecular-level insight into how the XyGUL SGBPs equip B. ovatus to specifically harvest XyG from the gut environment, we performed X-ray crystallography analysis of both SGBP-A and SGPB-B in oligosaccharide-complex forms.	RESULTS
143	164	X-ray crystallography	experimental_method	To provide molecular-level insight into how the XyGUL SGBPs equip B. ovatus to specifically harvest XyG from the gut environment, we performed X-ray crystallography analysis of both SGBP-A and SGPB-B in oligosaccharide-complex forms.	RESULTS
182	188	SGBP-A	protein	To provide molecular-level insight into how the XyGUL SGBPs equip B. ovatus to specifically harvest XyG from the gut environment, we performed X-ray crystallography analysis of both SGBP-A and SGPB-B in oligosaccharide-complex forms.	RESULTS
193	199	SGPB-B	protein	To provide molecular-level insight into how the XyGUL SGBPs equip B. ovatus to specifically harvest XyG from the gut environment, we performed X-ray crystallography analysis of both SGBP-A and SGPB-B in oligosaccharide-complex forms.	RESULTS
203	232	oligosaccharide-complex forms	complex_assembly	To provide molecular-level insight into how the XyGUL SGBPs equip B. ovatus to specifically harvest XyG from the gut environment, we performed X-ray crystallography analysis of both SGBP-A and SGPB-B in oligosaccharide-complex forms.	RESULTS
40	49	wild-type	protein_state	Summary of thermodynamic parameters for wild-type SGBP-A and SGBP-B obtained by isothermal titration calorimetry at 25°Ca	TABLE
50	56	SGBP-A	protein	Summary of thermodynamic parameters for wild-type SGBP-A and SGBP-B obtained by isothermal titration calorimetry at 25°Ca	TABLE
61	67	SGBP-B	protein	Summary of thermodynamic parameters for wild-type SGBP-A and SGBP-B obtained by isothermal titration calorimetry at 25°Ca	TABLE
80	112	isothermal titration calorimetry	experimental_method	Summary of thermodynamic parameters for wild-type SGBP-A and SGBP-B obtained by isothermal titration calorimetry at 25°Ca	TABLE
22	24	ΔG	evidence	"Carbohydrate	Ka (M−1)	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	SGBP-A	SGBP-B	SGBP-A	SGBP-B	SGBP-A	SGBP-B	SGBP-A	SGBP-B	 	XyGb	(4.4 ± 0.1) × 105	(5.7 ± 0.2) × 104	−7.7	−6.5	−14 ± 3	−14 ± 2	−6.5	−7.6	 	XyGO2c	3.0 × 105	2.0 × 104	−7.5	−5.9	−17.2	−17.6	−9.7	−11.7	 	XyGO1	NBd	(2.4 ± 0.1) × 103	NB	−4.6	NB	−4.4 ± 0.2	NB	0.2	 	Cellohexaose	568.0 ± 291.0	NB	−3.8	NB	−16 ± 8	NB	−12.7	NB	 	Cellotetraose	NB	NB	NB	NB	NB	NB	NB	NB	 	"	TABLE
0	6	SGBP-A	protein	SGBP-A is a SusD homolog with an extensive glycan-binding platform.	RESULTS
12	16	SusD	protein	SGBP-A is a SusD homolog with an extensive glycan-binding platform.	RESULTS
43	66	glycan-binding platform	site	SGBP-A is a SusD homolog with an extensive glycan-binding platform.	RESULTS
68	77	structure	evidence	As anticipated by sequence similarity, the high-resolution tertiary structure of apo-SGBP-A (1.36 Å, Rwork = 14.7%, Rfree = 17.4%, residues 28 to 546) (Table 2) displays the canonical “SusD-like” protein fold dominated by four tetratrico-peptide repeat (TPR) motifs that cradle the rest of the structure (Fig. 4A).	RESULTS
81	84	apo	protein_state	As anticipated by sequence similarity, the high-resolution tertiary structure of apo-SGBP-A (1.36 Å, Rwork = 14.7%, Rfree = 17.4%, residues 28 to 546) (Table 2) displays the canonical “SusD-like” protein fold dominated by four tetratrico-peptide repeat (TPR) motifs that cradle the rest of the structure (Fig. 4A).	RESULTS
85	91	SGBP-A	protein	As anticipated by sequence similarity, the high-resolution tertiary structure of apo-SGBP-A (1.36 Å, Rwork = 14.7%, Rfree = 17.4%, residues 28 to 546) (Table 2) displays the canonical “SusD-like” protein fold dominated by four tetratrico-peptide repeat (TPR) motifs that cradle the rest of the structure (Fig. 4A).	RESULTS
101	106	Rwork	evidence	As anticipated by sequence similarity, the high-resolution tertiary structure of apo-SGBP-A (1.36 Å, Rwork = 14.7%, Rfree = 17.4%, residues 28 to 546) (Table 2) displays the canonical “SusD-like” protein fold dominated by four tetratrico-peptide repeat (TPR) motifs that cradle the rest of the structure (Fig. 4A).	RESULTS
116	121	Rfree	evidence	As anticipated by sequence similarity, the high-resolution tertiary structure of apo-SGBP-A (1.36 Å, Rwork = 14.7%, Rfree = 17.4%, residues 28 to 546) (Table 2) displays the canonical “SusD-like” protein fold dominated by four tetratrico-peptide repeat (TPR) motifs that cradle the rest of the structure (Fig. 4A).	RESULTS
140	149	28 to 546	residue_range	As anticipated by sequence similarity, the high-resolution tertiary structure of apo-SGBP-A (1.36 Å, Rwork = 14.7%, Rfree = 17.4%, residues 28 to 546) (Table 2) displays the canonical “SusD-like” protein fold dominated by four tetratrico-peptide repeat (TPR) motifs that cradle the rest of the structure (Fig. 4A).	RESULTS
184	208	“SusD-like” protein fold	structure_element	As anticipated by sequence similarity, the high-resolution tertiary structure of apo-SGBP-A (1.36 Å, Rwork = 14.7%, Rfree = 17.4%, residues 28 to 546) (Table 2) displays the canonical “SusD-like” protein fold dominated by four tetratrico-peptide repeat (TPR) motifs that cradle the rest of the structure (Fig. 4A).	RESULTS
227	252	tetratrico-peptide repeat	structure_element	As anticipated by sequence similarity, the high-resolution tertiary structure of apo-SGBP-A (1.36 Å, Rwork = 14.7%, Rfree = 17.4%, residues 28 to 546) (Table 2) displays the canonical “SusD-like” protein fold dominated by four tetratrico-peptide repeat (TPR) motifs that cradle the rest of the structure (Fig. 4A).	RESULTS
254	257	TPR	structure_element	As anticipated by sequence similarity, the high-resolution tertiary structure of apo-SGBP-A (1.36 Å, Rwork = 14.7%, Rfree = 17.4%, residues 28 to 546) (Table 2) displays the canonical “SusD-like” protein fold dominated by four tetratrico-peptide repeat (TPR) motifs that cradle the rest of the structure (Fig. 4A).	RESULTS
294	303	structure	evidence	As anticipated by sequence similarity, the high-resolution tertiary structure of apo-SGBP-A (1.36 Å, Rwork = 14.7%, Rfree = 17.4%, residues 28 to 546) (Table 2) displays the canonical “SusD-like” protein fold dominated by four tetratrico-peptide repeat (TPR) motifs that cradle the rest of the structure (Fig. 4A).	RESULTS
14	20	SGBP-A	protein	Specifically, SGBP-A overlays B. thetaiotaomicron SusD (BtSusD) with a root mean square deviation (RMSD) value of 2.2 Å for 363 Cα pairs, which is notable given the 26% amino acid identity (40% similarity) between these homologs (Fig. 4C).	RESULTS
21	29	overlays	experimental_method	Specifically, SGBP-A overlays B. thetaiotaomicron SusD (BtSusD) with a root mean square deviation (RMSD) value of 2.2 Å for 363 Cα pairs, which is notable given the 26% amino acid identity (40% similarity) between these homologs (Fig. 4C).	RESULTS
30	49	B. thetaiotaomicron	species	Specifically, SGBP-A overlays B. thetaiotaomicron SusD (BtSusD) with a root mean square deviation (RMSD) value of 2.2 Å for 363 Cα pairs, which is notable given the 26% amino acid identity (40% similarity) between these homologs (Fig. 4C).	RESULTS
50	54	SusD	protein	Specifically, SGBP-A overlays B. thetaiotaomicron SusD (BtSusD) with a root mean square deviation (RMSD) value of 2.2 Å for 363 Cα pairs, which is notable given the 26% amino acid identity (40% similarity) between these homologs (Fig. 4C).	RESULTS
56	62	BtSusD	protein	Specifically, SGBP-A overlays B. thetaiotaomicron SusD (BtSusD) with a root mean square deviation (RMSD) value of 2.2 Å for 363 Cα pairs, which is notable given the 26% amino acid identity (40% similarity) between these homologs (Fig. 4C).	RESULTS
71	97	root mean square deviation	evidence	Specifically, SGBP-A overlays B. thetaiotaomicron SusD (BtSusD) with a root mean square deviation (RMSD) value of 2.2 Å for 363 Cα pairs, which is notable given the 26% amino acid identity (40% similarity) between these homologs (Fig. 4C).	RESULTS
99	103	RMSD	evidence	Specifically, SGBP-A overlays B. thetaiotaomicron SusD (BtSusD) with a root mean square deviation (RMSD) value of 2.2 Å for 363 Cα pairs, which is notable given the 26% amino acid identity (40% similarity) between these homologs (Fig. 4C).	RESULTS
0	17	Cocrystallization	experimental_method	Cocrystallization of SGBP-A with XyGO2 generated a substrate complex structure (2.3 Å, Rwork = 21.8%, Rfree = 24.8%, residues 36 to 546) (Fig. 4A and B; Table 2) that revealed the distinct binding-site architecture of the XyG binding protein.	RESULTS
21	27	SGBP-A	protein	Cocrystallization of SGBP-A with XyGO2 generated a substrate complex structure (2.3 Å, Rwork = 21.8%, Rfree = 24.8%, residues 36 to 546) (Fig. 4A and B; Table 2) that revealed the distinct binding-site architecture of the XyG binding protein.	RESULTS
33	38	XyGO2	chemical	Cocrystallization of SGBP-A with XyGO2 generated a substrate complex structure (2.3 Å, Rwork = 21.8%, Rfree = 24.8%, residues 36 to 546) (Fig. 4A and B; Table 2) that revealed the distinct binding-site architecture of the XyG binding protein.	RESULTS
51	68	substrate complex	complex_assembly	Cocrystallization of SGBP-A with XyGO2 generated a substrate complex structure (2.3 Å, Rwork = 21.8%, Rfree = 24.8%, residues 36 to 546) (Fig. 4A and B; Table 2) that revealed the distinct binding-site architecture of the XyG binding protein.	RESULTS
69	78	structure	evidence	Cocrystallization of SGBP-A with XyGO2 generated a substrate complex structure (2.3 Å, Rwork = 21.8%, Rfree = 24.8%, residues 36 to 546) (Fig. 4A and B; Table 2) that revealed the distinct binding-site architecture of the XyG binding protein.	RESULTS
87	92	Rwork	evidence	Cocrystallization of SGBP-A with XyGO2 generated a substrate complex structure (2.3 Å, Rwork = 21.8%, Rfree = 24.8%, residues 36 to 546) (Fig. 4A and B; Table 2) that revealed the distinct binding-site architecture of the XyG binding protein.	RESULTS
102	107	Rfree	evidence	Cocrystallization of SGBP-A with XyGO2 generated a substrate complex structure (2.3 Å, Rwork = 21.8%, Rfree = 24.8%, residues 36 to 546) (Fig. 4A and B; Table 2) that revealed the distinct binding-site architecture of the XyG binding protein.	RESULTS
126	135	36 to 546	residue_range	Cocrystallization of SGBP-A with XyGO2 generated a substrate complex structure (2.3 Å, Rwork = 21.8%, Rfree = 24.8%, residues 36 to 546) (Fig. 4A and B; Table 2) that revealed the distinct binding-site architecture of the XyG binding protein.	RESULTS
189	201	binding-site	site	Cocrystallization of SGBP-A with XyGO2 generated a substrate complex structure (2.3 Å, Rwork = 21.8%, Rfree = 24.8%, residues 36 to 546) (Fig. 4A and B; Table 2) that revealed the distinct binding-site architecture of the XyG binding protein.	RESULTS
222	241	XyG binding protein	protein_type	Cocrystallization of SGBP-A with XyGO2 generated a substrate complex structure (2.3 Å, Rwork = 21.8%, Rfree = 24.8%, residues 36 to 546) (Fig. 4A and B; Table 2) that revealed the distinct binding-site architecture of the XyG binding protein.	RESULTS
4	16	SGBP-A:XyGO2	complex_assembly	The SGBP-A:XyGO2 complex superimposes closely with the apo structure (RMSD of 0.6 Å) and demonstrates that no major conformational change occurs upon substrate binding; small deviations in the orientation of several surface loops are likely the result of differential crystal packing.	RESULTS
25	37	superimposes	experimental_method	The SGBP-A:XyGO2 complex superimposes closely with the apo structure (RMSD of 0.6 Å) and demonstrates that no major conformational change occurs upon substrate binding; small deviations in the orientation of several surface loops are likely the result of differential crystal packing.	RESULTS
55	58	apo	protein_state	The SGBP-A:XyGO2 complex superimposes closely with the apo structure (RMSD of 0.6 Å) and demonstrates that no major conformational change occurs upon substrate binding; small deviations in the orientation of several surface loops are likely the result of differential crystal packing.	RESULTS
59	68	structure	evidence	The SGBP-A:XyGO2 complex superimposes closely with the apo structure (RMSD of 0.6 Å) and demonstrates that no major conformational change occurs upon substrate binding; small deviations in the orientation of several surface loops are likely the result of differential crystal packing.	RESULTS
70	74	RMSD	evidence	The SGBP-A:XyGO2 complex superimposes closely with the apo structure (RMSD of 0.6 Å) and demonstrates that no major conformational change occurs upon substrate binding; small deviations in the orientation of several surface loops are likely the result of differential crystal packing.	RESULTS
61	80	ligand-binding site	site	It is particularly notable that although the location of the ligand-binding site is conserved between SGBP-A and SusD, that of SGBP-A displays an ~29-Å-long aromatic platform to accommodate the extended, linear XyG chain (see reference for a review of XyG secondary structure), versus the shorter, ~18-Å-long, site within SusD that complements the helical conformation of amylose (Fig. 4C and D).	RESULTS
84	93	conserved	protein_state	It is particularly notable that although the location of the ligand-binding site is conserved between SGBP-A and SusD, that of SGBP-A displays an ~29-Å-long aromatic platform to accommodate the extended, linear XyG chain (see reference for a review of XyG secondary structure), versus the shorter, ~18-Å-long, site within SusD that complements the helical conformation of amylose (Fig. 4C and D).	RESULTS
102	108	SGBP-A	protein	It is particularly notable that although the location of the ligand-binding site is conserved between SGBP-A and SusD, that of SGBP-A displays an ~29-Å-long aromatic platform to accommodate the extended, linear XyG chain (see reference for a review of XyG secondary structure), versus the shorter, ~18-Å-long, site within SusD that complements the helical conformation of amylose (Fig. 4C and D).	RESULTS
113	117	SusD	protein	It is particularly notable that although the location of the ligand-binding site is conserved between SGBP-A and SusD, that of SGBP-A displays an ~29-Å-long aromatic platform to accommodate the extended, linear XyG chain (see reference for a review of XyG secondary structure), versus the shorter, ~18-Å-long, site within SusD that complements the helical conformation of amylose (Fig. 4C and D).	RESULTS
127	133	SGBP-A	protein	It is particularly notable that although the location of the ligand-binding site is conserved between SGBP-A and SusD, that of SGBP-A displays an ~29-Å-long aromatic platform to accommodate the extended, linear XyG chain (see reference for a review of XyG secondary structure), versus the shorter, ~18-Å-long, site within SusD that complements the helical conformation of amylose (Fig. 4C and D).	RESULTS
157	174	aromatic platform	site	It is particularly notable that although the location of the ligand-binding site is conserved between SGBP-A and SusD, that of SGBP-A displays an ~29-Å-long aromatic platform to accommodate the extended, linear XyG chain (see reference for a review of XyG secondary structure), versus the shorter, ~18-Å-long, site within SusD that complements the helical conformation of amylose (Fig. 4C and D).	RESULTS
211	214	XyG	chemical	It is particularly notable that although the location of the ligand-binding site is conserved between SGBP-A and SusD, that of SGBP-A displays an ~29-Å-long aromatic platform to accommodate the extended, linear XyG chain (see reference for a review of XyG secondary structure), versus the shorter, ~18-Å-long, site within SusD that complements the helical conformation of amylose (Fig. 4C and D).	RESULTS
252	255	XyG	chemical	It is particularly notable that although the location of the ligand-binding site is conserved between SGBP-A and SusD, that of SGBP-A displays an ~29-Å-long aromatic platform to accommodate the extended, linear XyG chain (see reference for a review of XyG secondary structure), versus the shorter, ~18-Å-long, site within SusD that complements the helical conformation of amylose (Fig. 4C and D).	RESULTS
310	314	site	site	It is particularly notable that although the location of the ligand-binding site is conserved between SGBP-A and SusD, that of SGBP-A displays an ~29-Å-long aromatic platform to accommodate the extended, linear XyG chain (see reference for a review of XyG secondary structure), versus the shorter, ~18-Å-long, site within SusD that complements the helical conformation of amylose (Fig. 4C and D).	RESULTS
322	326	SusD	protein	It is particularly notable that although the location of the ligand-binding site is conserved between SGBP-A and SusD, that of SGBP-A displays an ~29-Å-long aromatic platform to accommodate the extended, linear XyG chain (see reference for a review of XyG secondary structure), versus the shorter, ~18-Å-long, site within SusD that complements the helical conformation of amylose (Fig. 4C and D).	RESULTS
372	379	amylose	chemical	It is particularly notable that although the location of the ligand-binding site is conserved between SGBP-A and SusD, that of SGBP-A displays an ~29-Å-long aromatic platform to accommodate the extended, linear XyG chain (see reference for a review of XyG secondary structure), versus the shorter, ~18-Å-long, site within SusD that complements the helical conformation of amylose (Fig. 4C and D).	RESULTS
10	19	structure	evidence	Molecular structure of SGBP-A (Bacova_02651). (A) Overlay of SGBP-A from the apo (rainbow) and XyGO2 (gray) structures.	FIG
23	29	SGBP-A	protein	Molecular structure of SGBP-A (Bacova_02651). (A) Overlay of SGBP-A from the apo (rainbow) and XyGO2 (gray) structures.	FIG
31	43	Bacova_02651	gene	Molecular structure of SGBP-A (Bacova_02651). (A) Overlay of SGBP-A from the apo (rainbow) and XyGO2 (gray) structures.	FIG
50	57	Overlay	experimental_method	Molecular structure of SGBP-A (Bacova_02651). (A) Overlay of SGBP-A from the apo (rainbow) and XyGO2 (gray) structures.	FIG
61	67	SGBP-A	protein	Molecular structure of SGBP-A (Bacova_02651). (A) Overlay of SGBP-A from the apo (rainbow) and XyGO2 (gray) structures.	FIG
77	80	apo	protein_state	Molecular structure of SGBP-A (Bacova_02651). (A) Overlay of SGBP-A from the apo (rainbow) and XyGO2 (gray) structures.	FIG
95	100	XyGO2	chemical	Molecular structure of SGBP-A (Bacova_02651). (A) Overlay of SGBP-A from the apo (rainbow) and XyGO2 (gray) structures.	FIG
108	118	structures	evidence	Molecular structure of SGBP-A (Bacova_02651). (A) Overlay of SGBP-A from the apo (rainbow) and XyGO2 (gray) structures.	FIG
4	7	apo	protein_state	The apo structure is color ramped from blue to red.	FIG
8	17	structure	evidence	The apo structure is color ramped from blue to red.	FIG
3	11	omit map	evidence	An omit map (2σ) for XyGO2 (orange and red sticks) is displayed.	FIG
21	26	XyGO2	chemical	An omit map (2σ) for XyGO2 (orange and red sticks) is displayed.	FIG
25	33	omit map	evidence	(B) Close-up view of the omit map as in panel A, rotated 90° clockwise.	FIG
4	11	Overlay	experimental_method	(C) Overlay of the Cα backbones of SGBP-A (black) with XyGO2 (orange and red spheres) and BtSusD (blue) with maltoheptaose (pink and red spheres), highlighting the conservation of the glycan-binding site location.	FIG
35	41	SGBP-A	protein	(C) Overlay of the Cα backbones of SGBP-A (black) with XyGO2 (orange and red spheres) and BtSusD (blue) with maltoheptaose (pink and red spheres), highlighting the conservation of the glycan-binding site location.	FIG
55	60	XyGO2	chemical	(C) Overlay of the Cα backbones of SGBP-A (black) with XyGO2 (orange and red spheres) and BtSusD (blue) with maltoheptaose (pink and red spheres), highlighting the conservation of the glycan-binding site location.	FIG
90	96	BtSusD	protein	(C) Overlay of the Cα backbones of SGBP-A (black) with XyGO2 (orange and red spheres) and BtSusD (blue) with maltoheptaose (pink and red spheres), highlighting the conservation of the glycan-binding site location.	FIG
109	122	maltoheptaose	chemical	(C) Overlay of the Cα backbones of SGBP-A (black) with XyGO2 (orange and red spheres) and BtSusD (blue) with maltoheptaose (pink and red spheres), highlighting the conservation of the glycan-binding site location.	FIG
184	203	glycan-binding site	site	(C) Overlay of the Cα backbones of SGBP-A (black) with XyGO2 (orange and red spheres) and BtSusD (blue) with maltoheptaose (pink and red spheres), highlighting the conservation of the glycan-binding site location.	FIG
20	26	SGBP-A	protein	(D) Close-up of the SGBP-A (black and orange) and SusD (blue and pink) glycan-binding sites.	FIG
50	54	SusD	protein	(D) Close-up of the SGBP-A (black and orange) and SusD (blue and pink) glycan-binding sites.	FIG
71	91	glycan-binding sites	site	(D) Close-up of the SGBP-A (black and orange) and SusD (blue and pink) glycan-binding sites.	FIG
31	50	glycan-binding site	site	The approximate length of each glycan-binding site is displayed, colored to match the protein structures. (E) Stereo view of the xyloglucan-binding site of SGBP-A, displaying all residues within 4 Å of the ligand.	FIG
86	104	protein structures	evidence	The approximate length of each glycan-binding site is displayed, colored to match the protein structures. (E) Stereo view of the xyloglucan-binding site of SGBP-A, displaying all residues within 4 Å of the ligand.	FIG
129	152	xyloglucan-binding site	site	The approximate length of each glycan-binding site is displayed, colored to match the protein structures. (E) Stereo view of the xyloglucan-binding site of SGBP-A, displaying all residues within 4 Å of the ligand.	FIG
156	162	SGBP-A	protein	The approximate length of each glycan-binding site is displayed, colored to match the protein structures. (E) Stereo view of the xyloglucan-binding site of SGBP-A, displaying all residues within 4 Å of the ligand.	FIG
13	20	glucose	chemical	The backbone glucose residues are numbered from the nonreducing end; xylose residues are labeled X1 and X2.	FIG
69	75	xylose	chemical	The backbone glucose residues are numbered from the nonreducing end; xylose residues are labeled X1 and X2.	FIG
97	99	X1	residue_name_number	The backbone glucose residues are numbered from the nonreducing end; xylose residues are labeled X1 and X2.	FIG
104	106	X2	residue_name_number	The backbone glucose residues are numbered from the nonreducing end; xylose residues are labeled X1 and X2.	FIG
10	39	hydrogen-bonding interactions	bond_interaction	Potential hydrogen-bonding interactions are shown as dashed lines, and the distance is shown in angstroms.	FIG
28	36	glucosyl	chemical	Seven of the eight backbone glucosyl residues of XyGO2 could be convincingly modeled in the ligand electron density, and only two α(1→6)-linked xylosyl residues were observed (Fig. 4B; cf.	RESULTS
49	54	XyGO2	chemical	Seven of the eight backbone glucosyl residues of XyGO2 could be convincingly modeled in the ligand electron density, and only two α(1→6)-linked xylosyl residues were observed (Fig. 4B; cf.	RESULTS
92	115	ligand electron density	evidence	Seven of the eight backbone glucosyl residues of XyGO2 could be convincingly modeled in the ligand electron density, and only two α(1→6)-linked xylosyl residues were observed (Fig. 4B; cf.	RESULTS
130	151	α(1→6)-linked xylosyl	chemical	Seven of the eight backbone glucosyl residues of XyGO2 could be convincingly modeled in the ligand electron density, and only two α(1→6)-linked xylosyl residues were observed (Fig. 4B; cf.	RESULTS
12	28	electron density	evidence	Indeed, the electron density for the ligand suggests some disorder, which may arise from multiple oligosaccharide orientations along the binding site.	RESULTS
98	113	oligosaccharide	chemical	Indeed, the electron density for the ligand suggests some disorder, which may arise from multiple oligosaccharide orientations along the binding site.	RESULTS
137	149	binding site	site	Indeed, the electron density for the ligand suggests some disorder, which may arise from multiple oligosaccharide orientations along the binding site.	RESULTS
24	27	W82	residue_name_number	Three aromatic residues—W82, W283, W306—comprise the flat platform that stacks along the naturally twisted β-glucan backbone (Fig. 4E).	RESULTS
29	33	W283	residue_name_number	Three aromatic residues—W82, W283, W306—comprise the flat platform that stacks along the naturally twisted β-glucan backbone (Fig. 4E).	RESULTS
35	39	W306	residue_name_number	Three aromatic residues—W82, W283, W306—comprise the flat platform that stacks along the naturally twisted β-glucan backbone (Fig. 4E).	RESULTS
53	66	flat platform	site	Three aromatic residues—W82, W283, W306—comprise the flat platform that stacks along the naturally twisted β-glucan backbone (Fig. 4E).	RESULTS
72	78	stacks	bond_interaction	Three aromatic residues—W82, W283, W306—comprise the flat platform that stacks along the naturally twisted β-glucan backbone (Fig. 4E).	RESULTS
107	115	β-glucan	chemical	Three aromatic residues—W82, W283, W306—comprise the flat platform that stacks along the naturally twisted β-glucan backbone (Fig. 4E).	RESULTS
34	42	platform	site	The functional importance of this platform is underscored by the observation that the W82A W283A W306A mutant of SGBP-A, designated SGBP-A*, is completely devoid of XyG affinity (Table 3; see Fig. S4 in the supplemental material).	RESULTS
86	90	W82A	mutant	The functional importance of this platform is underscored by the observation that the W82A W283A W306A mutant of SGBP-A, designated SGBP-A*, is completely devoid of XyG affinity (Table 3; see Fig. S4 in the supplemental material).	RESULTS
91	96	W283A	mutant	The functional importance of this platform is underscored by the observation that the W82A W283A W306A mutant of SGBP-A, designated SGBP-A*, is completely devoid of XyG affinity (Table 3; see Fig. S4 in the supplemental material).	RESULTS
97	102	W306A	mutant	The functional importance of this platform is underscored by the observation that the W82A W283A W306A mutant of SGBP-A, designated SGBP-A*, is completely devoid of XyG affinity (Table 3; see Fig. S4 in the supplemental material).	RESULTS
103	109	mutant	protein_state	The functional importance of this platform is underscored by the observation that the W82A W283A W306A mutant of SGBP-A, designated SGBP-A*, is completely devoid of XyG affinity (Table 3; see Fig. S4 in the supplemental material).	RESULTS
113	119	SGBP-A	protein	The functional importance of this platform is underscored by the observation that the W82A W283A W306A mutant of SGBP-A, designated SGBP-A*, is completely devoid of XyG affinity (Table 3; see Fig. S4 in the supplemental material).	RESULTS
132	139	SGBP-A*	mutant	The functional importance of this platform is underscored by the observation that the W82A W283A W306A mutant of SGBP-A, designated SGBP-A*, is completely devoid of XyG affinity (Table 3; see Fig. S4 in the supplemental material).	RESULTS
144	177	completely devoid of XyG affinity	protein_state	The functional importance of this platform is underscored by the observation that the W82A W283A W306A mutant of SGBP-A, designated SGBP-A*, is completely devoid of XyG affinity (Table 3; see Fig. S4 in the supplemental material).	RESULTS
77	81	W82A	mutant	Dissection of the individual contribution of these residues reveals that the W82A mutant displays a significant 4.9-fold decrease in the Ka value for XyG, while the W306A substitution completely abolishes XyG binding.	RESULTS
82	88	mutant	protein_state	Dissection of the individual contribution of these residues reveals that the W82A mutant displays a significant 4.9-fold decrease in the Ka value for XyG, while the W306A substitution completely abolishes XyG binding.	RESULTS
137	139	Ka	evidence	Dissection of the individual contribution of these residues reveals that the W82A mutant displays a significant 4.9-fold decrease in the Ka value for XyG, while the W306A substitution completely abolishes XyG binding.	RESULTS
150	153	XyG	chemical	Dissection of the individual contribution of these residues reveals that the W82A mutant displays a significant 4.9-fold decrease in the Ka value for XyG, while the W306A substitution completely abolishes XyG binding.	RESULTS
165	170	W306A	mutant	Dissection of the individual contribution of these residues reveals that the W82A mutant displays a significant 4.9-fold decrease in the Ka value for XyG, while the W306A substitution completely abolishes XyG binding.	RESULTS
171	183	substitution	experimental_method	Dissection of the individual contribution of these residues reveals that the W82A mutant displays a significant 4.9-fold decrease in the Ka value for XyG, while the W306A substitution completely abolishes XyG binding.	RESULTS
195	216	abolishes XyG binding	protein_state	Dissection of the individual contribution of these residues reveals that the W82A mutant displays a significant 4.9-fold decrease in the Ka value for XyG, while the W306A substitution completely abolishes XyG binding.	RESULTS
47	71	hydrophobic interactions	bond_interaction	Contrasting with the clear importance of these hydrophobic interactions, there are remarkably few hydrogen-bonding interactions with the ligand, which are provided by R65, N83, and S308, which are proximal to Glc5 and Glc3.	RESULTS
98	127	hydrogen-bonding interactions	bond_interaction	Contrasting with the clear importance of these hydrophobic interactions, there are remarkably few hydrogen-bonding interactions with the ligand, which are provided by R65, N83, and S308, which are proximal to Glc5 and Glc3.	RESULTS
137	143	ligand	chemical	Contrasting with the clear importance of these hydrophobic interactions, there are remarkably few hydrogen-bonding interactions with the ligand, which are provided by R65, N83, and S308, which are proximal to Glc5 and Glc3.	RESULTS
167	170	R65	residue_name_number	Contrasting with the clear importance of these hydrophobic interactions, there are remarkably few hydrogen-bonding interactions with the ligand, which are provided by R65, N83, and S308, which are proximal to Glc5 and Glc3.	RESULTS
172	175	N83	residue_name_number	Contrasting with the clear importance of these hydrophobic interactions, there are remarkably few hydrogen-bonding interactions with the ligand, which are provided by R65, N83, and S308, which are proximal to Glc5 and Glc3.	RESULTS
181	185	S308	residue_name_number	Contrasting with the clear importance of these hydrophobic interactions, there are remarkably few hydrogen-bonding interactions with the ligand, which are provided by R65, N83, and S308, which are proximal to Glc5 and Glc3.	RESULTS
209	213	Glc5	residue_name_number	Contrasting with the clear importance of these hydrophobic interactions, there are remarkably few hydrogen-bonding interactions with the ligand, which are provided by R65, N83, and S308, which are proximal to Glc5 and Glc3.	RESULTS
218	222	Glc3	residue_name_number	Contrasting with the clear importance of these hydrophobic interactions, there are remarkably few hydrogen-bonding interactions with the ligand, which are provided by R65, N83, and S308, which are proximal to Glc5 and Glc3.	RESULTS
32	55	saccharide-binding data	evidence	Most surprising in light of the saccharide-binding data, however, was a lack of extensive recognition of the XyG side chains; only Y84 appeared to provide a hydrophobic interface for a xylosyl residue (Xyl1).	RESULTS
109	112	XyG	chemical	Most surprising in light of the saccharide-binding data, however, was a lack of extensive recognition of the XyG side chains; only Y84 appeared to provide a hydrophobic interface for a xylosyl residue (Xyl1).	RESULTS
131	134	Y84	residue_name_number	Most surprising in light of the saccharide-binding data, however, was a lack of extensive recognition of the XyG side chains; only Y84 appeared to provide a hydrophobic interface for a xylosyl residue (Xyl1).	RESULTS
157	178	hydrophobic interface	site	Most surprising in light of the saccharide-binding data, however, was a lack of extensive recognition of the XyG side chains; only Y84 appeared to provide a hydrophobic interface for a xylosyl residue (Xyl1).	RESULTS
185	192	xylosyl	chemical	Most surprising in light of the saccharide-binding data, however, was a lack of extensive recognition of the XyG side chains; only Y84 appeared to provide a hydrophobic interface for a xylosyl residue (Xyl1).	RESULTS
202	206	Xyl1	residue_name_number	Most surprising in light of the saccharide-binding data, however, was a lack of extensive recognition of the XyG side chains; only Y84 appeared to provide a hydrophobic interface for a xylosyl residue (Xyl1).	RESULTS
65	71	SGBP-A	protein	Summary of thermodynamic parameters for site-directed mutants of SGBP-A and SGBP-B obtained by ITC with XyG at 25°Ca	TABLE
76	82	SGBP-B	protein	Summary of thermodynamic parameters for site-directed mutants of SGBP-A and SGBP-B obtained by ITC with XyG at 25°Ca	TABLE
95	98	ITC	experimental_method	Summary of thermodynamic parameters for site-directed mutants of SGBP-A and SGBP-B obtained by ITC with XyG at 25°Ca	TABLE
104	107	XyG	chemical	Summary of thermodynamic parameters for site-directed mutants of SGBP-A and SGBP-B obtained by ITC with XyG at 25°Ca	TABLE
13	15	Ka	evidence	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
16	18	ΔG	evidence	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
34	36	ΔH	evidence	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
52	55	TΔS	evidence	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
92	98	SGBP-A	protein	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
99	103	W82A	mutant	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
104	109	W283A	mutant	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
110	115	W306A	mutant	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
134	140	SGBP-A	protein	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
141	145	W82A	mutant	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
178	184	SGBP-A	protein	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
185	189	W306	residue_name_number	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
208	214	SGBP-B	protein	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
215	222	230–489	residue_range	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
271	277	SGBP-B	protein	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
278	283	Y363A	mutant	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
334	340	SGBP-B	protein	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
341	346	W364A	mutant	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
373	379	SGBP-B	protein	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
380	385	F414A	mutant	"Protein name	Ka	ΔG (kcal ⋅ mol−1)	ΔH (kcal ⋅ mol−1)	TΔS (kcal ⋅ mol−1)	 	Fold changeb	M−1	 	SGBP-A(W82A W283A W306A)	ND	NB	NB	NB	NB	 	SGBP-A(W82A)c	4.9	9.1 × 104	−6.8	−6.3	0.5	 	SGBP-A(W306)	ND	NB	NB	NB	NB	 	SGBP-B(230–489)	0.7	(8.6 ± 0.20) × 104	−6.7	−14.9 ± 0.1	−8.2	 	SGBP-B(Y363A)	19.7	(2.9 ± 0.10) × 103	−4.7	−18.1 ± 0.1	−13.3	 	SGBP-B(W364A)	ND	Weak	Weak	Weak	Weak	 	SGBP-B(F414A)	3.2	(1.80 ± 0.03) × 104	−5.8	−11.4 ± 0.1	−5.6	 	"	TABLE
75	80	XyGO2	chemical	Binding thermodynamics are based on the concentration of the binding unit, XyGO2.	TABLE
26	28	Ka	evidence	Weak binding represents a Ka of <500 M−1.	TABLE
0	2	Ka	evidence	Ka fold change = Ka of wild-type protein/Ka of mutant protein for xyloglucan binding.	TABLE
17	19	Ka	evidence	Ka fold change = Ka of wild-type protein/Ka of mutant protein for xyloglucan binding.	TABLE
23	32	wild-type	protein_state	Ka fold change = Ka of wild-type protein/Ka of mutant protein for xyloglucan binding.	TABLE
41	43	Ka	evidence	Ka fold change = Ka of wild-type protein/Ka of mutant protein for xyloglucan binding.	TABLE
66	76	xyloglucan	chemical	Ka fold change = Ka of wild-type protein/Ka of mutant protein for xyloglucan binding.	TABLE
0	6	SGBP-B	protein	SGBP-B has a multimodular structure with a single, C-terminal glycan-binding domain.	RESULTS
62	83	glycan-binding domain	structure_element	SGBP-B has a multimodular structure with a single, C-terminal glycan-binding domain.	RESULTS
4	21	crystal structure	evidence	The crystal structure of full-length SGBP-B in complex with XyGO2 (2.37 Å, Rwork = 19.9%, Rfree = 23.9%, residues 34 to 489) (Table 2) revealed an extended structure composed of three tandem immunoglobulin (Ig)-like domains (domains A, B, and C) followed at the C terminus by a novel xyloglucan-binding domain (domain D) (Fig. 5A).	RESULTS
25	36	full-length	protein_state	The crystal structure of full-length SGBP-B in complex with XyGO2 (2.37 Å, Rwork = 19.9%, Rfree = 23.9%, residues 34 to 489) (Table 2) revealed an extended structure composed of three tandem immunoglobulin (Ig)-like domains (domains A, B, and C) followed at the C terminus by a novel xyloglucan-binding domain (domain D) (Fig. 5A).	RESULTS
37	43	SGBP-B	protein	The crystal structure of full-length SGBP-B in complex with XyGO2 (2.37 Å, Rwork = 19.9%, Rfree = 23.9%, residues 34 to 489) (Table 2) revealed an extended structure composed of three tandem immunoglobulin (Ig)-like domains (domains A, B, and C) followed at the C terminus by a novel xyloglucan-binding domain (domain D) (Fig. 5A).	RESULTS
44	59	in complex with	protein_state	The crystal structure of full-length SGBP-B in complex with XyGO2 (2.37 Å, Rwork = 19.9%, Rfree = 23.9%, residues 34 to 489) (Table 2) revealed an extended structure composed of three tandem immunoglobulin (Ig)-like domains (domains A, B, and C) followed at the C terminus by a novel xyloglucan-binding domain (domain D) (Fig. 5A).	RESULTS
60	65	XyGO2	chemical	The crystal structure of full-length SGBP-B in complex with XyGO2 (2.37 Å, Rwork = 19.9%, Rfree = 23.9%, residues 34 to 489) (Table 2) revealed an extended structure composed of three tandem immunoglobulin (Ig)-like domains (domains A, B, and C) followed at the C terminus by a novel xyloglucan-binding domain (domain D) (Fig. 5A).	RESULTS
75	80	Rwork	evidence	The crystal structure of full-length SGBP-B in complex with XyGO2 (2.37 Å, Rwork = 19.9%, Rfree = 23.9%, residues 34 to 489) (Table 2) revealed an extended structure composed of three tandem immunoglobulin (Ig)-like domains (domains A, B, and C) followed at the C terminus by a novel xyloglucan-binding domain (domain D) (Fig. 5A).	RESULTS
90	95	Rfree	evidence	The crystal structure of full-length SGBP-B in complex with XyGO2 (2.37 Å, Rwork = 19.9%, Rfree = 23.9%, residues 34 to 489) (Table 2) revealed an extended structure composed of three tandem immunoglobulin (Ig)-like domains (domains A, B, and C) followed at the C terminus by a novel xyloglucan-binding domain (domain D) (Fig. 5A).	RESULTS
114	123	34 to 489	residue_range	The crystal structure of full-length SGBP-B in complex with XyGO2 (2.37 Å, Rwork = 19.9%, Rfree = 23.9%, residues 34 to 489) (Table 2) revealed an extended structure composed of three tandem immunoglobulin (Ig)-like domains (domains A, B, and C) followed at the C terminus by a novel xyloglucan-binding domain (domain D) (Fig. 5A).	RESULTS
156	165	structure	evidence	The crystal structure of full-length SGBP-B in complex with XyGO2 (2.37 Å, Rwork = 19.9%, Rfree = 23.9%, residues 34 to 489) (Table 2) revealed an extended structure composed of three tandem immunoglobulin (Ig)-like domains (domains A, B, and C) followed at the C terminus by a novel xyloglucan-binding domain (domain D) (Fig. 5A).	RESULTS
184	223	tandem immunoglobulin (Ig)-like domains	structure_element	The crystal structure of full-length SGBP-B in complex with XyGO2 (2.37 Å, Rwork = 19.9%, Rfree = 23.9%, residues 34 to 489) (Table 2) revealed an extended structure composed of three tandem immunoglobulin (Ig)-like domains (domains A, B, and C) followed at the C terminus by a novel xyloglucan-binding domain (domain D) (Fig. 5A).	RESULTS
233	234	A	structure_element	The crystal structure of full-length SGBP-B in complex with XyGO2 (2.37 Å, Rwork = 19.9%, Rfree = 23.9%, residues 34 to 489) (Table 2) revealed an extended structure composed of three tandem immunoglobulin (Ig)-like domains (domains A, B, and C) followed at the C terminus by a novel xyloglucan-binding domain (domain D) (Fig. 5A).	RESULTS
236	237	B	structure_element	The crystal structure of full-length SGBP-B in complex with XyGO2 (2.37 Å, Rwork = 19.9%, Rfree = 23.9%, residues 34 to 489) (Table 2) revealed an extended structure composed of three tandem immunoglobulin (Ig)-like domains (domains A, B, and C) followed at the C terminus by a novel xyloglucan-binding domain (domain D) (Fig. 5A).	RESULTS
243	244	C	structure_element	The crystal structure of full-length SGBP-B in complex with XyGO2 (2.37 Å, Rwork = 19.9%, Rfree = 23.9%, residues 34 to 489) (Table 2) revealed an extended structure composed of three tandem immunoglobulin (Ig)-like domains (domains A, B, and C) followed at the C terminus by a novel xyloglucan-binding domain (domain D) (Fig. 5A).	RESULTS
284	309	xyloglucan-binding domain	structure_element	The crystal structure of full-length SGBP-B in complex with XyGO2 (2.37 Å, Rwork = 19.9%, Rfree = 23.9%, residues 34 to 489) (Table 2) revealed an extended structure composed of three tandem immunoglobulin (Ig)-like domains (domains A, B, and C) followed at the C terminus by a novel xyloglucan-binding domain (domain D) (Fig. 5A).	RESULTS
318	319	D	structure_element	The crystal structure of full-length SGBP-B in complex with XyGO2 (2.37 Å, Rwork = 19.9%, Rfree = 23.9%, residues 34 to 489) (Table 2) revealed an extended structure composed of three tandem immunoglobulin (Ig)-like domains (domains A, B, and C) followed at the C terminus by a novel xyloglucan-binding domain (domain D) (Fig. 5A).	RESULTS
8	9	A	structure_element	Domains A, B, and C display similar β-sandwich folds; domains B (residues 134 to 230) and C (residues 231 to 313) can be superimposed onto domain A (residues 34 to 133) with RMSDs of 1.1 and 1.2 Å, respectively, for 47 atom pairs (23% and 16% sequence identity, respectively).	RESULTS
11	12	B	structure_element	Domains A, B, and C display similar β-sandwich folds; domains B (residues 134 to 230) and C (residues 231 to 313) can be superimposed onto domain A (residues 34 to 133) with RMSDs of 1.1 and 1.2 Å, respectively, for 47 atom pairs (23% and 16% sequence identity, respectively).	RESULTS
18	19	C	structure_element	Domains A, B, and C display similar β-sandwich folds; domains B (residues 134 to 230) and C (residues 231 to 313) can be superimposed onto domain A (residues 34 to 133) with RMSDs of 1.1 and 1.2 Å, respectively, for 47 atom pairs (23% and 16% sequence identity, respectively).	RESULTS
36	52	β-sandwich folds	structure_element	Domains A, B, and C display similar β-sandwich folds; domains B (residues 134 to 230) and C (residues 231 to 313) can be superimposed onto domain A (residues 34 to 133) with RMSDs of 1.1 and 1.2 Å, respectively, for 47 atom pairs (23% and 16% sequence identity, respectively).	RESULTS
62	63	B	structure_element	Domains A, B, and C display similar β-sandwich folds; domains B (residues 134 to 230) and C (residues 231 to 313) can be superimposed onto domain A (residues 34 to 133) with RMSDs of 1.1 and 1.2 Å, respectively, for 47 atom pairs (23% and 16% sequence identity, respectively).	RESULTS
74	84	134 to 230	residue_range	Domains A, B, and C display similar β-sandwich folds; domains B (residues 134 to 230) and C (residues 231 to 313) can be superimposed onto domain A (residues 34 to 133) with RMSDs of 1.1 and 1.2 Å, respectively, for 47 atom pairs (23% and 16% sequence identity, respectively).	RESULTS
90	91	C	structure_element	Domains A, B, and C display similar β-sandwich folds; domains B (residues 134 to 230) and C (residues 231 to 313) can be superimposed onto domain A (residues 34 to 133) with RMSDs of 1.1 and 1.2 Å, respectively, for 47 atom pairs (23% and 16% sequence identity, respectively).	RESULTS
102	112	231 to 313	residue_range	Domains A, B, and C display similar β-sandwich folds; domains B (residues 134 to 230) and C (residues 231 to 313) can be superimposed onto domain A (residues 34 to 133) with RMSDs of 1.1 and 1.2 Å, respectively, for 47 atom pairs (23% and 16% sequence identity, respectively).	RESULTS
121	133	superimposed	experimental_method	Domains A, B, and C display similar β-sandwich folds; domains B (residues 134 to 230) and C (residues 231 to 313) can be superimposed onto domain A (residues 34 to 133) with RMSDs of 1.1 and 1.2 Å, respectively, for 47 atom pairs (23% and 16% sequence identity, respectively).	RESULTS
146	147	A	structure_element	Domains A, B, and C display similar β-sandwich folds; domains B (residues 134 to 230) and C (residues 231 to 313) can be superimposed onto domain A (residues 34 to 133) with RMSDs of 1.1 and 1.2 Å, respectively, for 47 atom pairs (23% and 16% sequence identity, respectively).	RESULTS
158	167	34 to 133	residue_range	Domains A, B, and C display similar β-sandwich folds; domains B (residues 134 to 230) and C (residues 231 to 313) can be superimposed onto domain A (residues 34 to 133) with RMSDs of 1.1 and 1.2 Å, respectively, for 47 atom pairs (23% and 16% sequence identity, respectively).	RESULTS
174	179	RMSDs	evidence	Domains A, B, and C display similar β-sandwich folds; domains B (residues 134 to 230) and C (residues 231 to 313) can be superimposed onto domain A (residues 34 to 133) with RMSDs of 1.1 and 1.2 Å, respectively, for 47 atom pairs (23% and 16% sequence identity, respectively).	RESULTS
0	13	These domains	structure_element	These domains also display similarity to the C-terminal β-sandwich domains of many GH13 enzymes, including the cyclodextrin glucanotransferase of Geobacillus stearothermophilus (Fig. 5B).	RESULTS
56	74	β-sandwich domains	structure_element	These domains also display similarity to the C-terminal β-sandwich domains of many GH13 enzymes, including the cyclodextrin glucanotransferase of Geobacillus stearothermophilus (Fig. 5B).	RESULTS
83	95	GH13 enzymes	protein_type	These domains also display similarity to the C-terminal β-sandwich domains of many GH13 enzymes, including the cyclodextrin glucanotransferase of Geobacillus stearothermophilus (Fig. 5B).	RESULTS
111	142	cyclodextrin glucanotransferase	protein_type	These domains also display similarity to the C-terminal β-sandwich domains of many GH13 enzymes, including the cyclodextrin glucanotransferase of Geobacillus stearothermophilus (Fig. 5B).	RESULTS
146	176	Geobacillus stearothermophilus	species	These domains also display similarity to the C-terminal β-sandwich domains of many GH13 enzymes, including the cyclodextrin glucanotransferase of Geobacillus stearothermophilus (Fig. 5B).	RESULTS
0	12	Such domains	structure_element	Such domains are not typically involved in carbohydrate binding.	RESULTS
43	55	carbohydrate	chemical	Such domains are not typically involved in carbohydrate binding.	RESULTS
8	25	visual inspection	experimental_method	Indeed, visual inspection of the SGBP-B structure, as well as individual production of the A and B domains and affinity PAGE analysis (see Fig. S5 in the supplemental material), indicates that these domains do not contribute to XyG capture.	RESULTS
33	39	SGBP-B	protein	Indeed, visual inspection of the SGBP-B structure, as well as individual production of the A and B domains and affinity PAGE analysis (see Fig. S5 in the supplemental material), indicates that these domains do not contribute to XyG capture.	RESULTS
40	49	structure	evidence	Indeed, visual inspection of the SGBP-B structure, as well as individual production of the A and B domains and affinity PAGE analysis (see Fig. S5 in the supplemental material), indicates that these domains do not contribute to XyG capture.	RESULTS
91	92	A	structure_element	Indeed, visual inspection of the SGBP-B structure, as well as individual production of the A and B domains and affinity PAGE analysis (see Fig. S5 in the supplemental material), indicates that these domains do not contribute to XyG capture.	RESULTS
97	98	B	structure_element	Indeed, visual inspection of the SGBP-B structure, as well as individual production of the A and B domains and affinity PAGE analysis (see Fig. S5 in the supplemental material), indicates that these domains do not contribute to XyG capture.	RESULTS
111	124	affinity PAGE	experimental_method	Indeed, visual inspection of the SGBP-B structure, as well as individual production of the A and B domains and affinity PAGE analysis (see Fig. S5 in the supplemental material), indicates that these domains do not contribute to XyG capture.	RESULTS
228	231	XyG	chemical	Indeed, visual inspection of the SGBP-B structure, as well as individual production of the A and B domains and affinity PAGE analysis (see Fig. S5 in the supplemental material), indicates that these domains do not contribute to XyG capture.	RESULTS
19	29	production	experimental_method	On the other hand, production of the fused domains C and D in tandem (SGBP-B residues 230 to 489) retains complete binding of xyloglucan in vitro, with the observed slight increase in affinity likely arising from a reduced potential for steric hindrance of the smaller protein construct during polysaccharide interactions (Table 3).	RESULTS
37	58	fused domains C and D	mutant	On the other hand, production of the fused domains C and D in tandem (SGBP-B residues 230 to 489) retains complete binding of xyloglucan in vitro, with the observed slight increase in affinity likely arising from a reduced potential for steric hindrance of the smaller protein construct during polysaccharide interactions (Table 3).	RESULTS
70	76	SGBP-B	protein	On the other hand, production of the fused domains C and D in tandem (SGBP-B residues 230 to 489) retains complete binding of xyloglucan in vitro, with the observed slight increase in affinity likely arising from a reduced potential for steric hindrance of the smaller protein construct during polysaccharide interactions (Table 3).	RESULTS
86	96	230 to 489	residue_range	On the other hand, production of the fused domains C and D in tandem (SGBP-B residues 230 to 489) retains complete binding of xyloglucan in vitro, with the observed slight increase in affinity likely arising from a reduced potential for steric hindrance of the smaller protein construct during polysaccharide interactions (Table 3).	RESULTS
126	136	xyloglucan	chemical	On the other hand, production of the fused domains C and D in tandem (SGBP-B residues 230 to 489) retains complete binding of xyloglucan in vitro, with the observed slight increase in affinity likely arising from a reduced potential for steric hindrance of the smaller protein construct during polysaccharide interactions (Table 3).	RESULTS
294	308	polysaccharide	chemical	On the other hand, production of the fused domains C and D in tandem (SGBP-B residues 230 to 489) retains complete binding of xyloglucan in vitro, with the observed slight increase in affinity likely arising from a reduced potential for steric hindrance of the smaller protein construct during polysaccharide interactions (Table 3).	RESULTS
18	29	full-length	protein_state	While neither the full-length protein nor domain D displays structural homology to known XyG-binding proteins, the topology of SGBP-B resembles the xylan-binding protein Bacova_04391 (PDB 3ORJ) encoded within a xylan-targeting PUL of B. ovatus (Fig. 5C).	RESULTS
49	50	D	structure_element	While neither the full-length protein nor domain D displays structural homology to known XyG-binding proteins, the topology of SGBP-B resembles the xylan-binding protein Bacova_04391 (PDB 3ORJ) encoded within a xylan-targeting PUL of B. ovatus (Fig. 5C).	RESULTS
89	109	XyG-binding proteins	protein_type	While neither the full-length protein nor domain D displays structural homology to known XyG-binding proteins, the topology of SGBP-B resembles the xylan-binding protein Bacova_04391 (PDB 3ORJ) encoded within a xylan-targeting PUL of B. ovatus (Fig. 5C).	RESULTS
127	133	SGBP-B	protein	While neither the full-length protein nor domain D displays structural homology to known XyG-binding proteins, the topology of SGBP-B resembles the xylan-binding protein Bacova_04391 (PDB 3ORJ) encoded within a xylan-targeting PUL of B. ovatus (Fig. 5C).	RESULTS
148	169	xylan-binding protein	protein_type	While neither the full-length protein nor domain D displays structural homology to known XyG-binding proteins, the topology of SGBP-B resembles the xylan-binding protein Bacova_04391 (PDB 3ORJ) encoded within a xylan-targeting PUL of B. ovatus (Fig. 5C).	RESULTS
170	182	Bacova_04391	protein	While neither the full-length protein nor domain D displays structural homology to known XyG-binding proteins, the topology of SGBP-B resembles the xylan-binding protein Bacova_04391 (PDB 3ORJ) encoded within a xylan-targeting PUL of B. ovatus (Fig. 5C).	RESULTS
211	216	xylan	chemical	While neither the full-length protein nor domain D displays structural homology to known XyG-binding proteins, the topology of SGBP-B resembles the xylan-binding protein Bacova_04391 (PDB 3ORJ) encoded within a xylan-targeting PUL of B. ovatus (Fig. 5C).	RESULTS
227	230	PUL	gene	While neither the full-length protein nor domain D displays structural homology to known XyG-binding proteins, the topology of SGBP-B resembles the xylan-binding protein Bacova_04391 (PDB 3ORJ) encoded within a xylan-targeting PUL of B. ovatus (Fig. 5C).	RESULTS
234	243	B. ovatus	species	While neither the full-length protein nor domain D displays structural homology to known XyG-binding proteins, the topology of SGBP-B resembles the xylan-binding protein Bacova_04391 (PDB 3ORJ) encoded within a xylan-targeting PUL of B. ovatus (Fig. 5C).	RESULTS
4	29	structure-based alignment	experimental_method	The structure-based alignment of these proteins reveals 17% sequence identity, with a core RMSD of 3.6 Å for 253 aligned residues.	RESULTS
91	95	RMSD	evidence	The structure-based alignment of these proteins reveals 17% sequence identity, with a core RMSD of 3.6 Å for 253 aligned residues.	RESULTS
51	63	Bacova_04391	protein	While there is no substrate-complexed structure of Bacova_04391 available, the binding site is predicted to include W241 and Y404, which are proximal to the XyGO binding site in SGBP-B. However, the opposing, clamp-like arrangement of these residues in Bacova_04391 is clearly distinct from the planar surface arrangement of the residues that interact with XyG in SGBP-B (described below).	RESULTS
79	91	binding site	site	While there is no substrate-complexed structure of Bacova_04391 available, the binding site is predicted to include W241 and Y404, which are proximal to the XyGO binding site in SGBP-B. However, the opposing, clamp-like arrangement of these residues in Bacova_04391 is clearly distinct from the planar surface arrangement of the residues that interact with XyG in SGBP-B (described below).	RESULTS
116	120	W241	residue_name_number	While there is no substrate-complexed structure of Bacova_04391 available, the binding site is predicted to include W241 and Y404, which are proximal to the XyGO binding site in SGBP-B. However, the opposing, clamp-like arrangement of these residues in Bacova_04391 is clearly distinct from the planar surface arrangement of the residues that interact with XyG in SGBP-B (described below).	RESULTS
125	129	Y404	residue_name_number	While there is no substrate-complexed structure of Bacova_04391 available, the binding site is predicted to include W241 and Y404, which are proximal to the XyGO binding site in SGBP-B. However, the opposing, clamp-like arrangement of these residues in Bacova_04391 is clearly distinct from the planar surface arrangement of the residues that interact with XyG in SGBP-B (described below).	RESULTS
157	174	XyGO binding site	site	While there is no substrate-complexed structure of Bacova_04391 available, the binding site is predicted to include W241 and Y404, which are proximal to the XyGO binding site in SGBP-B. However, the opposing, clamp-like arrangement of these residues in Bacova_04391 is clearly distinct from the planar surface arrangement of the residues that interact with XyG in SGBP-B (described below).	RESULTS
178	184	SGBP-B	protein	While there is no substrate-complexed structure of Bacova_04391 available, the binding site is predicted to include W241 and Y404, which are proximal to the XyGO binding site in SGBP-B. However, the opposing, clamp-like arrangement of these residues in Bacova_04391 is clearly distinct from the planar surface arrangement of the residues that interact with XyG in SGBP-B (described below).	RESULTS
199	231	opposing, clamp-like arrangement	protein_state	While there is no substrate-complexed structure of Bacova_04391 available, the binding site is predicted to include W241 and Y404, which are proximal to the XyGO binding site in SGBP-B. However, the opposing, clamp-like arrangement of these residues in Bacova_04391 is clearly distinct from the planar surface arrangement of the residues that interact with XyG in SGBP-B (described below).	RESULTS
235	249	these residues	structure_element	While there is no substrate-complexed structure of Bacova_04391 available, the binding site is predicted to include W241 and Y404, which are proximal to the XyGO binding site in SGBP-B. However, the opposing, clamp-like arrangement of these residues in Bacova_04391 is clearly distinct from the planar surface arrangement of the residues that interact with XyG in SGBP-B (described below).	RESULTS
253	265	Bacova_04391	protein	While there is no substrate-complexed structure of Bacova_04391 available, the binding site is predicted to include W241 and Y404, which are proximal to the XyGO binding site in SGBP-B. However, the opposing, clamp-like arrangement of these residues in Bacova_04391 is clearly distinct from the planar surface arrangement of the residues that interact with XyG in SGBP-B (described below).	RESULTS
295	321	planar surface arrangement	site	While there is no substrate-complexed structure of Bacova_04391 available, the binding site is predicted to include W241 and Y404, which are proximal to the XyGO binding site in SGBP-B. However, the opposing, clamp-like arrangement of these residues in Bacova_04391 is clearly distinct from the planar surface arrangement of the residues that interact with XyG in SGBP-B (described below).	RESULTS
329	337	residues	structure_element	While there is no substrate-complexed structure of Bacova_04391 available, the binding site is predicted to include W241 and Y404, which are proximal to the XyGO binding site in SGBP-B. However, the opposing, clamp-like arrangement of these residues in Bacova_04391 is clearly distinct from the planar surface arrangement of the residues that interact with XyG in SGBP-B (described below).	RESULTS
357	360	XyG	chemical	While there is no substrate-complexed structure of Bacova_04391 available, the binding site is predicted to include W241 and Y404, which are proximal to the XyGO binding site in SGBP-B. However, the opposing, clamp-like arrangement of these residues in Bacova_04391 is clearly distinct from the planar surface arrangement of the residues that interact with XyG in SGBP-B (described below).	RESULTS
364	370	SGBP-B	protein	While there is no substrate-complexed structure of Bacova_04391 available, the binding site is predicted to include W241 and Y404, which are proximal to the XyGO binding site in SGBP-B. However, the opposing, clamp-like arrangement of these residues in Bacova_04391 is clearly distinct from the planar surface arrangement of the residues that interact with XyG in SGBP-B (described below).	RESULTS
26	32	SGBP-B	protein	Multimodular structure of SGBP-B (Bacova_02650). (A) Full-length structure of SGBP-B, color coded by domain as indicated.	FIG
34	46	Bacova_02650	gene	Multimodular structure of SGBP-B (Bacova_02650). (A) Full-length structure of SGBP-B, color coded by domain as indicated.	FIG
53	64	Full-length	protein_state	Multimodular structure of SGBP-B (Bacova_02650). (A) Full-length structure of SGBP-B, color coded by domain as indicated.	FIG
65	74	structure	evidence	Multimodular structure of SGBP-B (Bacova_02650). (A) Full-length structure of SGBP-B, color coded by domain as indicated.	FIG
78	84	SGBP-B	protein	Multimodular structure of SGBP-B (Bacova_02650). (A) Full-length structure of SGBP-B, color coded by domain as indicated.	FIG
0	8	Prolines	residue_name	Prolines between domains are indicated as spheres.	FIG
3	11	omit map	evidence	An omit map (2σ) for XyGO2 is displayed to highlight the location of the glycan-binding site.	FIG
21	26	XyGO2	chemical	An omit map (2σ) for XyGO2 is displayed to highlight the location of the glycan-binding site.	FIG
73	92	glycan-binding site	site	An omit map (2σ) for XyGO2 is displayed to highlight the location of the glycan-binding site.	FIG
15	21	SGBP-B	protein	(B) Overlay of SGBP-B domains A, B, and C (colored as in panel A), with a C-terminal Ig-like domain of the G. stearothermophilus cyclodextrin glucanotransferase (PDB 1CYG [residues 375 to 493]) in green. (C) Cα overlay of SGBP-B (gray) and Bacova_04391 (PDB 3ORJ) (pink).	FIG
30	31	A	structure_element	(B) Overlay of SGBP-B domains A, B, and C (colored as in panel A), with a C-terminal Ig-like domain of the G. stearothermophilus cyclodextrin glucanotransferase (PDB 1CYG [residues 375 to 493]) in green. (C) Cα overlay of SGBP-B (gray) and Bacova_04391 (PDB 3ORJ) (pink).	FIG
33	34	B	structure_element	(B) Overlay of SGBP-B domains A, B, and C (colored as in panel A), with a C-terminal Ig-like domain of the G. stearothermophilus cyclodextrin glucanotransferase (PDB 1CYG [residues 375 to 493]) in green. (C) Cα overlay of SGBP-B (gray) and Bacova_04391 (PDB 3ORJ) (pink).	FIG
40	41	C	structure_element	(B) Overlay of SGBP-B domains A, B, and C (colored as in panel A), with a C-terminal Ig-like domain of the G. stearothermophilus cyclodextrin glucanotransferase (PDB 1CYG [residues 375 to 493]) in green. (C) Cα overlay of SGBP-B (gray) and Bacova_04391 (PDB 3ORJ) (pink).	FIG
85	99	Ig-like domain	structure_element	(B) Overlay of SGBP-B domains A, B, and C (colored as in panel A), with a C-terminal Ig-like domain of the G. stearothermophilus cyclodextrin glucanotransferase (PDB 1CYG [residues 375 to 493]) in green. (C) Cα overlay of SGBP-B (gray) and Bacova_04391 (PDB 3ORJ) (pink).	FIG
107	128	G. stearothermophilus	species	(B) Overlay of SGBP-B domains A, B, and C (colored as in panel A), with a C-terminal Ig-like domain of the G. stearothermophilus cyclodextrin glucanotransferase (PDB 1CYG [residues 375 to 493]) in green. (C) Cα overlay of SGBP-B (gray) and Bacova_04391 (PDB 3ORJ) (pink).	FIG
129	160	cyclodextrin glucanotransferase	protein_type	(B) Overlay of SGBP-B domains A, B, and C (colored as in panel A), with a C-terminal Ig-like domain of the G. stearothermophilus cyclodextrin glucanotransferase (PDB 1CYG [residues 375 to 493]) in green. (C) Cα overlay of SGBP-B (gray) and Bacova_04391 (PDB 3ORJ) (pink).	FIG
181	191	375 to 493	residue_range	(B) Overlay of SGBP-B domains A, B, and C (colored as in panel A), with a C-terminal Ig-like domain of the G. stearothermophilus cyclodextrin glucanotransferase (PDB 1CYG [residues 375 to 493]) in green. (C) Cα overlay of SGBP-B (gray) and Bacova_04391 (PDB 3ORJ) (pink).	FIG
211	218	overlay	experimental_method	(B) Overlay of SGBP-B domains A, B, and C (colored as in panel A), with a C-terminal Ig-like domain of the G. stearothermophilus cyclodextrin glucanotransferase (PDB 1CYG [residues 375 to 493]) in green. (C) Cα overlay of SGBP-B (gray) and Bacova_04391 (PDB 3ORJ) (pink).	FIG
222	228	SGBP-B	protein	(B) Overlay of SGBP-B domains A, B, and C (colored as in panel A), with a C-terminal Ig-like domain of the G. stearothermophilus cyclodextrin glucanotransferase (PDB 1CYG [residues 375 to 493]) in green. (C) Cα overlay of SGBP-B (gray) and Bacova_04391 (PDB 3ORJ) (pink).	FIG
240	252	Bacova_04391	protein	(B) Overlay of SGBP-B domains A, B, and C (colored as in panel A), with a C-terminal Ig-like domain of the G. stearothermophilus cyclodextrin glucanotransferase (PDB 1CYG [residues 375 to 493]) in green. (C) Cα overlay of SGBP-B (gray) and Bacova_04391 (PDB 3ORJ) (pink).	FIG
13	21	omit map	evidence	(D) Close-up omit map for the XyGO2 ligand, contoured at 2σ. (E) Stereo view of the xyloglucan-binding site of SGBP-B, displaying all residues within 4 Å of the ligand.	FIG
30	35	XyGO2	chemical	(D) Close-up omit map for the XyGO2 ligand, contoured at 2σ. (E) Stereo view of the xyloglucan-binding site of SGBP-B, displaying all residues within 4 Å of the ligand.	FIG
84	107	xyloglucan-binding site	site	(D) Close-up omit map for the XyGO2 ligand, contoured at 2σ. (E) Stereo view of the xyloglucan-binding site of SGBP-B, displaying all residues within 4 Å of the ligand.	FIG
111	117	SGBP-B	protein	(D) Close-up omit map for the XyGO2 ligand, contoured at 2σ. (E) Stereo view of the xyloglucan-binding site of SGBP-B, displaying all residues within 4 Å of the ligand.	FIG
13	20	glucose	chemical	The backbone glucose residues are numbered from the nonreducing end, xylose residues are shown as X1, X2, and X3, potential hydrogen-bonding interactions are shown as dashed lines, and the distance is shown in angstroms.	FIG
69	75	xylose	chemical	The backbone glucose residues are numbered from the nonreducing end, xylose residues are shown as X1, X2, and X3, potential hydrogen-bonding interactions are shown as dashed lines, and the distance is shown in angstroms.	FIG
98	100	X1	residue_name_number	The backbone glucose residues are numbered from the nonreducing end, xylose residues are shown as X1, X2, and X3, potential hydrogen-bonding interactions are shown as dashed lines, and the distance is shown in angstroms.	FIG
102	104	X2	residue_name_number	The backbone glucose residues are numbered from the nonreducing end, xylose residues are shown as X1, X2, and X3, potential hydrogen-bonding interactions are shown as dashed lines, and the distance is shown in angstroms.	FIG
110	112	X3	residue_name_number	The backbone glucose residues are numbered from the nonreducing end, xylose residues are shown as X1, X2, and X3, potential hydrogen-bonding interactions are shown as dashed lines, and the distance is shown in angstroms.	FIG
124	153	hydrogen-bonding interactions	bond_interaction	The backbone glucose residues are numbered from the nonreducing end, xylose residues are shown as X1, X2, and X3, potential hydrogen-bonding interactions are shown as dashed lines, and the distance is shown in angstroms.	FIG
27	36	structure	evidence	Inspection of the tertiary structure indicates that domains C and D are effectively inseparable, with a contact interface of 396 Å2.	RESULTS
60	61	C	structure_element	Inspection of the tertiary structure indicates that domains C and D are effectively inseparable, with a contact interface of 396 Å2.	RESULTS
66	67	D	structure_element	Inspection of the tertiary structure indicates that domains C and D are effectively inseparable, with a contact interface of 396 Å2.	RESULTS
8	9	A	structure_element	Domains A, B, and C do not pack against each other.	RESULTS
11	12	B	structure_element	Domains A, B, and C do not pack against each other.	RESULTS
18	19	C	structure_element	Domains A, B, and C do not pack against each other.	RESULTS
14	34	five-residue linkers	structure_element	Moreover, the five-residue linkers between these first three domains all feature a proline as the middle residue, suggesting significant conformational rigidity (Fig. 5A).	RESULTS
83	90	proline	residue_name	Moreover, the five-residue linkers between these first three domains all feature a proline as the middle residue, suggesting significant conformational rigidity (Fig. 5A).	RESULTS
98	112	middle residue	structure_element	Moreover, the five-residue linkers between these first three domains all feature a proline as the middle residue, suggesting significant conformational rigidity (Fig. 5A).	RESULTS
81	88	proline	residue_name	Despite the lack of sequence and structural conservation, a similarly positioned proline joins the Ig-like domains of the xylan-binding Bacova_04391 and the starch-binding proteins SusE and SusF. We speculate that this is a biologically important adaptation that serves to project the glycan binding site of these proteins far from the membrane surface.	RESULTS
99	114	Ig-like domains	structure_element	Despite the lack of sequence and structural conservation, a similarly positioned proline joins the Ig-like domains of the xylan-binding Bacova_04391 and the starch-binding proteins SusE and SusF. We speculate that this is a biologically important adaptation that serves to project the glycan binding site of these proteins far from the membrane surface.	RESULTS
136	148	Bacova_04391	protein	Despite the lack of sequence and structural conservation, a similarly positioned proline joins the Ig-like domains of the xylan-binding Bacova_04391 and the starch-binding proteins SusE and SusF. We speculate that this is a biologically important adaptation that serves to project the glycan binding site of these proteins far from the membrane surface.	RESULTS
157	180	starch-binding proteins	protein_type	Despite the lack of sequence and structural conservation, a similarly positioned proline joins the Ig-like domains of the xylan-binding Bacova_04391 and the starch-binding proteins SusE and SusF. We speculate that this is a biologically important adaptation that serves to project the glycan binding site of these proteins far from the membrane surface.	RESULTS
181	185	SusE	protein	Despite the lack of sequence and structural conservation, a similarly positioned proline joins the Ig-like domains of the xylan-binding Bacova_04391 and the starch-binding proteins SusE and SusF. We speculate that this is a biologically important adaptation that serves to project the glycan binding site of these proteins far from the membrane surface.	RESULTS
190	194	SusF	protein	Despite the lack of sequence and structural conservation, a similarly positioned proline joins the Ig-like domains of the xylan-binding Bacova_04391 and the starch-binding proteins SusE and SusF. We speculate that this is a biologically important adaptation that serves to project the glycan binding site of these proteins far from the membrane surface.	RESULTS
285	304	glycan binding site	site	Despite the lack of sequence and structural conservation, a similarly positioned proline joins the Ig-like domains of the xylan-binding Bacova_04391 and the starch-binding proteins SusE and SusF. We speculate that this is a biologically important adaptation that serves to project the glycan binding site of these proteins far from the membrane surface.	RESULTS
16	22	SGBP-B	protein	Any mobility of SGBP-B on the surface of the cell (beyond lateral diffusion within the membrane) is likely imparted by the eight-residue linker that spans the predicted lipidated Cys (C28) and the first β-strand of domain A. Other outer membrane proteins from various Sus-like systems possess a similar 10- to 20-amino-acid flexible linker between the lipidated Cys that tethers the protein to the outside the cell and the first secondary structure element.	RESULTS
123	143	eight-residue linker	structure_element	Any mobility of SGBP-B on the surface of the cell (beyond lateral diffusion within the membrane) is likely imparted by the eight-residue linker that spans the predicted lipidated Cys (C28) and the first β-strand of domain A. Other outer membrane proteins from various Sus-like systems possess a similar 10- to 20-amino-acid flexible linker between the lipidated Cys that tethers the protein to the outside the cell and the first secondary structure element.	RESULTS
169	178	lipidated	protein_state	Any mobility of SGBP-B on the surface of the cell (beyond lateral diffusion within the membrane) is likely imparted by the eight-residue linker that spans the predicted lipidated Cys (C28) and the first β-strand of domain A. Other outer membrane proteins from various Sus-like systems possess a similar 10- to 20-amino-acid flexible linker between the lipidated Cys that tethers the protein to the outside the cell and the first secondary structure element.	RESULTS
179	182	Cys	residue_name	Any mobility of SGBP-B on the surface of the cell (beyond lateral diffusion within the membrane) is likely imparted by the eight-residue linker that spans the predicted lipidated Cys (C28) and the first β-strand of domain A. Other outer membrane proteins from various Sus-like systems possess a similar 10- to 20-amino-acid flexible linker between the lipidated Cys that tethers the protein to the outside the cell and the first secondary structure element.	RESULTS
184	187	C28	residue_name_number	Any mobility of SGBP-B on the surface of the cell (beyond lateral diffusion within the membrane) is likely imparted by the eight-residue linker that spans the predicted lipidated Cys (C28) and the first β-strand of domain A. Other outer membrane proteins from various Sus-like systems possess a similar 10- to 20-amino-acid flexible linker between the lipidated Cys that tethers the protein to the outside the cell and the first secondary structure element.	RESULTS
197	211	first β-strand	structure_element	Any mobility of SGBP-B on the surface of the cell (beyond lateral diffusion within the membrane) is likely imparted by the eight-residue linker that spans the predicted lipidated Cys (C28) and the first β-strand of domain A. Other outer membrane proteins from various Sus-like systems possess a similar 10- to 20-amino-acid flexible linker between the lipidated Cys that tethers the protein to the outside the cell and the first secondary structure element.	RESULTS
222	223	A	structure_element	Any mobility of SGBP-B on the surface of the cell (beyond lateral diffusion within the membrane) is likely imparted by the eight-residue linker that spans the predicted lipidated Cys (C28) and the first β-strand of domain A. Other outer membrane proteins from various Sus-like systems possess a similar 10- to 20-amino-acid flexible linker between the lipidated Cys that tethers the protein to the outside the cell and the first secondary structure element.	RESULTS
231	254	outer membrane proteins	protein_type	Any mobility of SGBP-B on the surface of the cell (beyond lateral diffusion within the membrane) is likely imparted by the eight-residue linker that spans the predicted lipidated Cys (C28) and the first β-strand of domain A. Other outer membrane proteins from various Sus-like systems possess a similar 10- to 20-amino-acid flexible linker between the lipidated Cys that tethers the protein to the outside the cell and the first secondary structure element.	RESULTS
268	284	Sus-like systems	complex_assembly	Any mobility of SGBP-B on the surface of the cell (beyond lateral diffusion within the membrane) is likely imparted by the eight-residue linker that spans the predicted lipidated Cys (C28) and the first β-strand of domain A. Other outer membrane proteins from various Sus-like systems possess a similar 10- to 20-amino-acid flexible linker between the lipidated Cys that tethers the protein to the outside the cell and the first secondary structure element.	RESULTS
303	339	10- to 20-amino-acid flexible linker	structure_element	Any mobility of SGBP-B on the surface of the cell (beyond lateral diffusion within the membrane) is likely imparted by the eight-residue linker that spans the predicted lipidated Cys (C28) and the first β-strand of domain A. Other outer membrane proteins from various Sus-like systems possess a similar 10- to 20-amino-acid flexible linker between the lipidated Cys that tethers the protein to the outside the cell and the first secondary structure element.	RESULTS
352	361	lipidated	protein_state	Any mobility of SGBP-B on the surface of the cell (beyond lateral diffusion within the membrane) is likely imparted by the eight-residue linker that spans the predicted lipidated Cys (C28) and the first β-strand of domain A. Other outer membrane proteins from various Sus-like systems possess a similar 10- to 20-amino-acid flexible linker between the lipidated Cys that tethers the protein to the outside the cell and the first secondary structure element.	RESULTS
362	365	Cys	residue_name	Any mobility of SGBP-B on the surface of the cell (beyond lateral diffusion within the membrane) is likely imparted by the eight-residue linker that spans the predicted lipidated Cys (C28) and the first β-strand of domain A. Other outer membrane proteins from various Sus-like systems possess a similar 10- to 20-amino-acid flexible linker between the lipidated Cys that tethers the protein to the outside the cell and the first secondary structure element.	RESULTS
17	40	outer membrane-anchored	protein_state	Analogously, the outer membrane-anchored endo-xyloglucanase BoGH5 of the XyGUL contains a 100-amino-acid, all-β-strand, N-terminal module and flexible linker that imparts conformational flexibility and distances the catalytic module from the cell surface.	RESULTS
41	59	endo-xyloglucanase	protein_type	Analogously, the outer membrane-anchored endo-xyloglucanase BoGH5 of the XyGUL contains a 100-amino-acid, all-β-strand, N-terminal module and flexible linker that imparts conformational flexibility and distances the catalytic module from the cell surface.	RESULTS
60	65	BoGH5	protein	Analogously, the outer membrane-anchored endo-xyloglucanase BoGH5 of the XyGUL contains a 100-amino-acid, all-β-strand, N-terminal module and flexible linker that imparts conformational flexibility and distances the catalytic module from the cell surface.	RESULTS
73	78	XyGUL	gene	Analogously, the outer membrane-anchored endo-xyloglucanase BoGH5 of the XyGUL contains a 100-amino-acid, all-β-strand, N-terminal module and flexible linker that imparts conformational flexibility and distances the catalytic module from the cell surface.	RESULTS
90	118	100-amino-acid, all-β-strand	structure_element	Analogously, the outer membrane-anchored endo-xyloglucanase BoGH5 of the XyGUL contains a 100-amino-acid, all-β-strand, N-terminal module and flexible linker that imparts conformational flexibility and distances the catalytic module from the cell surface.	RESULTS
120	137	N-terminal module	structure_element	Analogously, the outer membrane-anchored endo-xyloglucanase BoGH5 of the XyGUL contains a 100-amino-acid, all-β-strand, N-terminal module and flexible linker that imparts conformational flexibility and distances the catalytic module from the cell surface.	RESULTS
142	157	flexible linker	structure_element	Analogously, the outer membrane-anchored endo-xyloglucanase BoGH5 of the XyGUL contains a 100-amino-acid, all-β-strand, N-terminal module and flexible linker that imparts conformational flexibility and distances the catalytic module from the cell surface.	RESULTS
216	232	catalytic module	structure_element	Analogously, the outer membrane-anchored endo-xyloglucanase BoGH5 of the XyGUL contains a 100-amino-acid, all-β-strand, N-terminal module and flexible linker that imparts conformational flexibility and distances the catalytic module from the cell surface.	RESULTS
0	3	XyG	chemical	XyG binds to domain D of SGBP-B at the concave interface of the top β-sheet, with binding mediated by loops connecting the β-strands.	RESULTS
4	12	binds to	protein_state	XyG binds to domain D of SGBP-B at the concave interface of the top β-sheet, with binding mediated by loops connecting the β-strands.	RESULTS
20	21	D	structure_element	XyG binds to domain D of SGBP-B at the concave interface of the top β-sheet, with binding mediated by loops connecting the β-strands.	RESULTS
25	31	SGBP-B	protein	XyG binds to domain D of SGBP-B at the concave interface of the top β-sheet, with binding mediated by loops connecting the β-strands.	RESULTS
39	56	concave interface	site	XyG binds to domain D of SGBP-B at the concave interface of the top β-sheet, with binding mediated by loops connecting the β-strands.	RESULTS
68	75	β-sheet	structure_element	XyG binds to domain D of SGBP-B at the concave interface of the top β-sheet, with binding mediated by loops connecting the β-strands.	RESULTS
102	107	loops	structure_element	XyG binds to domain D of SGBP-B at the concave interface of the top β-sheet, with binding mediated by loops connecting the β-strands.	RESULTS
123	132	β-strands	structure_element	XyG binds to domain D of SGBP-B at the concave interface of the top β-sheet, with binding mediated by loops connecting the β-strands.	RESULTS
4	12	glucosyl	chemical	Six glucosyl residues, comprising the main chain, and three branching xylosyl residues of XyGO2 can be modeled in the density (Fig. 5D; cf.	RESULTS
70	77	xylosyl	chemical	Six glucosyl residues, comprising the main chain, and three branching xylosyl residues of XyGO2 can be modeled in the density (Fig. 5D; cf.	RESULTS
90	95	XyGO2	chemical	Six glucosyl residues, comprising the main chain, and three branching xylosyl residues of XyGO2 can be modeled in the density (Fig. 5D; cf.	RESULTS
118	125	density	evidence	Six glucosyl residues, comprising the main chain, and three branching xylosyl residues of XyGO2 can be modeled in the density (Fig. 5D; cf.	RESULTS
82	119	cello- and xylogluco-oligosaccharides	chemical	The backbone is flat, with less of the “twisted-ribbon” geometry observed in some cello- and xylogluco-oligosaccharides.	RESULTS
4	21	aromatic platform	site	The aromatic platform created by W330, W364, and Y363 spans four glucosyl residues, compared to the longer platform of SGBP-A, which supports six glucosyl residues (Fig. 5E).	RESULTS
33	37	W330	residue_name_number	The aromatic platform created by W330, W364, and Y363 spans four glucosyl residues, compared to the longer platform of SGBP-A, which supports six glucosyl residues (Fig. 5E).	RESULTS
39	43	W364	residue_name_number	The aromatic platform created by W330, W364, and Y363 spans four glucosyl residues, compared to the longer platform of SGBP-A, which supports six glucosyl residues (Fig. 5E).	RESULTS
49	53	Y363	residue_name_number	The aromatic platform created by W330, W364, and Y363 spans four glucosyl residues, compared to the longer platform of SGBP-A, which supports six glucosyl residues (Fig. 5E).	RESULTS
65	73	glucosyl	chemical	The aromatic platform created by W330, W364, and Y363 spans four glucosyl residues, compared to the longer platform of SGBP-A, which supports six glucosyl residues (Fig. 5E).	RESULTS
100	106	longer	protein_state	The aromatic platform created by W330, W364, and Y363 spans four glucosyl residues, compared to the longer platform of SGBP-A, which supports six glucosyl residues (Fig. 5E).	RESULTS
107	115	platform	site	The aromatic platform created by W330, W364, and Y363 spans four glucosyl residues, compared to the longer platform of SGBP-A, which supports six glucosyl residues (Fig. 5E).	RESULTS
119	125	SGBP-A	protein	The aromatic platform created by W330, W364, and Y363 spans four glucosyl residues, compared to the longer platform of SGBP-A, which supports six glucosyl residues (Fig. 5E).	RESULTS
146	154	glucosyl	chemical	The aromatic platform created by W330, W364, and Y363 spans four glucosyl residues, compared to the longer platform of SGBP-A, which supports six glucosyl residues (Fig. 5E).	RESULTS
4	9	Y363A	mutant	The Y363A site-directed mutant of SGBP-B displays a 20-fold decrease in the Ka for XyG, while the W364A mutant lacks XyG binding (Table 3; see Fig. S6 in the supplemental material).	RESULTS
10	30	site-directed mutant	experimental_method	The Y363A site-directed mutant of SGBP-B displays a 20-fold decrease in the Ka for XyG, while the W364A mutant lacks XyG binding (Table 3; see Fig. S6 in the supplemental material).	RESULTS
34	40	SGBP-B	protein	The Y363A site-directed mutant of SGBP-B displays a 20-fold decrease in the Ka for XyG, while the W364A mutant lacks XyG binding (Table 3; see Fig. S6 in the supplemental material).	RESULTS
76	78	Ka	evidence	The Y363A site-directed mutant of SGBP-B displays a 20-fold decrease in the Ka for XyG, while the W364A mutant lacks XyG binding (Table 3; see Fig. S6 in the supplemental material).	RESULTS
83	86	XyG	chemical	The Y363A site-directed mutant of SGBP-B displays a 20-fold decrease in the Ka for XyG, while the W364A mutant lacks XyG binding (Table 3; see Fig. S6 in the supplemental material).	RESULTS
98	103	W364A	mutant	The Y363A site-directed mutant of SGBP-B displays a 20-fold decrease in the Ka for XyG, while the W364A mutant lacks XyG binding (Table 3; see Fig. S6 in the supplemental material).	RESULTS
104	110	mutant	protein_state	The Y363A site-directed mutant of SGBP-B displays a 20-fold decrease in the Ka for XyG, while the W364A mutant lacks XyG binding (Table 3; see Fig. S6 in the supplemental material).	RESULTS
111	128	lacks XyG binding	protein_state	The Y363A site-directed mutant of SGBP-B displays a 20-fold decrease in the Ka for XyG, while the W364A mutant lacks XyG binding (Table 3; see Fig. S6 in the supplemental material).	RESULTS
61	69	β-glucan	chemical	There are no additional contacts between the protein and the β-glucan backbone and surprisingly few interactions with the side-chain xylosyl residues, despite that fact that ITC data demonstrate that SGBP-B does not measurably bind the cellohexaose (Table 1).	RESULTS
133	140	xylosyl	chemical	There are no additional contacts between the protein and the β-glucan backbone and surprisingly few interactions with the side-chain xylosyl residues, despite that fact that ITC data demonstrate that SGBP-B does not measurably bind the cellohexaose (Table 1).	RESULTS
174	177	ITC	experimental_method	There are no additional contacts between the protein and the β-glucan backbone and surprisingly few interactions with the side-chain xylosyl residues, despite that fact that ITC data demonstrate that SGBP-B does not measurably bind the cellohexaose (Table 1).	RESULTS
200	206	SGBP-B	protein	There are no additional contacts between the protein and the β-glucan backbone and surprisingly few interactions with the side-chain xylosyl residues, despite that fact that ITC data demonstrate that SGBP-B does not measurably bind the cellohexaose (Table 1).	RESULTS
236	248	cellohexaose	chemical	There are no additional contacts between the protein and the β-glucan backbone and surprisingly few interactions with the side-chain xylosyl residues, despite that fact that ITC data demonstrate that SGBP-B does not measurably bind the cellohexaose (Table 1).	RESULTS
0	4	F414	residue_name_number	F414 stacks with the xylosyl residue of Glc3, while Q407 is positioned for hydrogen bonding with the O4 of xylosyl residue Xyl1.	RESULTS
5	11	stacks	bond_interaction	F414 stacks with the xylosyl residue of Glc3, while Q407 is positioned for hydrogen bonding with the O4 of xylosyl residue Xyl1.	RESULTS
21	28	xylosyl	chemical	F414 stacks with the xylosyl residue of Glc3, while Q407 is positioned for hydrogen bonding with the O4 of xylosyl residue Xyl1.	RESULTS
40	44	Glc3	residue_name_number	F414 stacks with the xylosyl residue of Glc3, while Q407 is positioned for hydrogen bonding with the O4 of xylosyl residue Xyl1.	RESULTS
52	56	Q407	residue_name_number	F414 stacks with the xylosyl residue of Glc3, while Q407 is positioned for hydrogen bonding with the O4 of xylosyl residue Xyl1.	RESULTS
75	91	hydrogen bonding	bond_interaction	F414 stacks with the xylosyl residue of Glc3, while Q407 is positioned for hydrogen bonding with the O4 of xylosyl residue Xyl1.	RESULTS
107	114	xylosyl	chemical	F414 stacks with the xylosyl residue of Glc3, while Q407 is positioned for hydrogen bonding with the O4 of xylosyl residue Xyl1.	RESULTS
123	127	Xyl1	residue_name_number	F414 stacks with the xylosyl residue of Glc3, while Q407 is positioned for hydrogen bonding with the O4 of xylosyl residue Xyl1.	RESULTS
17	22	F414A	mutant	Surprisingly, an F414A mutant of SGBP-B displays only a mild 3-fold decrease in the Ka value for XyG, again suggesting that glycan recognition is primarily mediated via contact with the β-glucan backbone (Table 3; see Fig. S6).	RESULTS
23	29	mutant	protein_state	Surprisingly, an F414A mutant of SGBP-B displays only a mild 3-fold decrease in the Ka value for XyG, again suggesting that glycan recognition is primarily mediated via contact with the β-glucan backbone (Table 3; see Fig. S6).	RESULTS
33	39	SGBP-B	protein	Surprisingly, an F414A mutant of SGBP-B displays only a mild 3-fold decrease in the Ka value for XyG, again suggesting that glycan recognition is primarily mediated via contact with the β-glucan backbone (Table 3; see Fig. S6).	RESULTS
84	86	Ka	evidence	Surprisingly, an F414A mutant of SGBP-B displays only a mild 3-fold decrease in the Ka value for XyG, again suggesting that glycan recognition is primarily mediated via contact with the β-glucan backbone (Table 3; see Fig. S6).	RESULTS
97	100	XyG	chemical	Surprisingly, an F414A mutant of SGBP-B displays only a mild 3-fold decrease in the Ka value for XyG, again suggesting that glycan recognition is primarily mediated via contact with the β-glucan backbone (Table 3; see Fig. S6).	RESULTS
124	130	glycan	chemical	Surprisingly, an F414A mutant of SGBP-B displays only a mild 3-fold decrease in the Ka value for XyG, again suggesting that glycan recognition is primarily mediated via contact with the β-glucan backbone (Table 3; see Fig. S6).	RESULTS
11	19	residues	structure_element	Additional residues surrounding the binding site, including Y369 and E412, may contribute to the recognition of more highly decorated XyG, but precisely how this is mediated is presently unclear.	RESULTS
36	48	binding site	site	Additional residues surrounding the binding site, including Y369 and E412, may contribute to the recognition of more highly decorated XyG, but precisely how this is mediated is presently unclear.	RESULTS
60	64	Y369	residue_name_number	Additional residues surrounding the binding site, including Y369 and E412, may contribute to the recognition of more highly decorated XyG, but precisely how this is mediated is presently unclear.	RESULTS
69	73	E412	residue_name_number	Additional residues surrounding the binding site, including Y369 and E412, may contribute to the recognition of more highly decorated XyG, but precisely how this is mediated is presently unclear.	RESULTS
134	137	XyG	chemical	Additional residues surrounding the binding site, including Y369 and E412, may contribute to the recognition of more highly decorated XyG, but precisely how this is mediated is presently unclear.	RESULTS
50	56	SGBP-B	protein	Hoping to achieve a higher-resolution view of the SGBP-B–xyloglucan interaction, we solved the crystal structure of the fused CD domains in complex with XyGO2 (1.57 Å, Rwork = 15.6%, Rfree = 17.1%, residues 230 to 489) (Table 2).	RESULTS
57	67	xyloglucan	chemical	Hoping to achieve a higher-resolution view of the SGBP-B–xyloglucan interaction, we solved the crystal structure of the fused CD domains in complex with XyGO2 (1.57 Å, Rwork = 15.6%, Rfree = 17.1%, residues 230 to 489) (Table 2).	RESULTS
84	90	solved	experimental_method	Hoping to achieve a higher-resolution view of the SGBP-B–xyloglucan interaction, we solved the crystal structure of the fused CD domains in complex with XyGO2 (1.57 Å, Rwork = 15.6%, Rfree = 17.1%, residues 230 to 489) (Table 2).	RESULTS
95	112	crystal structure	evidence	Hoping to achieve a higher-resolution view of the SGBP-B–xyloglucan interaction, we solved the crystal structure of the fused CD domains in complex with XyGO2 (1.57 Å, Rwork = 15.6%, Rfree = 17.1%, residues 230 to 489) (Table 2).	RESULTS
120	136	fused CD domains	mutant	Hoping to achieve a higher-resolution view of the SGBP-B–xyloglucan interaction, we solved the crystal structure of the fused CD domains in complex with XyGO2 (1.57 Å, Rwork = 15.6%, Rfree = 17.1%, residues 230 to 489) (Table 2).	RESULTS
137	152	in complex with	protein_state	Hoping to achieve a higher-resolution view of the SGBP-B–xyloglucan interaction, we solved the crystal structure of the fused CD domains in complex with XyGO2 (1.57 Å, Rwork = 15.6%, Rfree = 17.1%, residues 230 to 489) (Table 2).	RESULTS
153	158	XyGO2	chemical	Hoping to achieve a higher-resolution view of the SGBP-B–xyloglucan interaction, we solved the crystal structure of the fused CD domains in complex with XyGO2 (1.57 Å, Rwork = 15.6%, Rfree = 17.1%, residues 230 to 489) (Table 2).	RESULTS
168	173	Rwork	evidence	Hoping to achieve a higher-resolution view of the SGBP-B–xyloglucan interaction, we solved the crystal structure of the fused CD domains in complex with XyGO2 (1.57 Å, Rwork = 15.6%, Rfree = 17.1%, residues 230 to 489) (Table 2).	RESULTS
183	188	Rfree	evidence	Hoping to achieve a higher-resolution view of the SGBP-B–xyloglucan interaction, we solved the crystal structure of the fused CD domains in complex with XyGO2 (1.57 Å, Rwork = 15.6%, Rfree = 17.1%, residues 230 to 489) (Table 2).	RESULTS
207	217	230 to 489	residue_range	Hoping to achieve a higher-resolution view of the SGBP-B–xyloglucan interaction, we solved the crystal structure of the fused CD domains in complex with XyGO2 (1.57 Å, Rwork = 15.6%, Rfree = 17.1%, residues 230 to 489) (Table 2).	RESULTS
4	14	CD domains	structure_element	The CD domains of the truncated and full-length proteins superimpose with a 0.4-Å RMSD of the Cα backbone, with no differences in the position of any of the glycan-binding residues (see Fig. S7A in the supplemental material).	RESULTS
22	31	truncated	protein_state	The CD domains of the truncated and full-length proteins superimpose with a 0.4-Å RMSD of the Cα backbone, with no differences in the position of any of the glycan-binding residues (see Fig. S7A in the supplemental material).	RESULTS
36	47	full-length	protein_state	The CD domains of the truncated and full-length proteins superimpose with a 0.4-Å RMSD of the Cα backbone, with no differences in the position of any of the glycan-binding residues (see Fig. S7A in the supplemental material).	RESULTS
57	68	superimpose	experimental_method	The CD domains of the truncated and full-length proteins superimpose with a 0.4-Å RMSD of the Cα backbone, with no differences in the position of any of the glycan-binding residues (see Fig. S7A in the supplemental material).	RESULTS
82	86	RMSD	evidence	The CD domains of the truncated and full-length proteins superimpose with a 0.4-Å RMSD of the Cα backbone, with no differences in the position of any of the glycan-binding residues (see Fig. S7A in the supplemental material).	RESULTS
157	180	glycan-binding residues	site	The CD domains of the truncated and full-length proteins superimpose with a 0.4-Å RMSD of the Cα backbone, with no differences in the position of any of the glycan-binding residues (see Fig. S7A in the supplemental material).	RESULTS
6	13	density	evidence	While density is observed for XyGO2, the ligand could not be unambiguously modeled into this density to achieve a reasonable fit between the X-ray data and the known stereochemistry of the sugar (see Fig. S7B and C).	RESULTS
30	35	XyGO2	chemical	While density is observed for XyGO2, the ligand could not be unambiguously modeled into this density to achieve a reasonable fit between the X-ray data and the known stereochemistry of the sugar (see Fig. S7B and C).	RESULTS
93	100	density	evidence	While density is observed for XyGO2, the ligand could not be unambiguously modeled into this density to achieve a reasonable fit between the X-ray data and the known stereochemistry of the sugar (see Fig. S7B and C).	RESULTS
141	151	X-ray data	evidence	While density is observed for XyGO2, the ligand could not be unambiguously modeled into this density to achieve a reasonable fit between the X-ray data and the known stereochemistry of the sugar (see Fig. S7B and C).	RESULTS
48	66	crystal structures	evidence	While this may occur for a number of reasons in crystal structures, it is likely that the poor ligand density even at higher resolution is due to movement or multiple orientations of the sugar averaged throughout the lattice.	RESULTS
187	192	sugar	chemical	While this may occur for a number of reasons in crystal structures, it is likely that the poor ligand density even at higher resolution is due to movement or multiple orientations of the sugar averaged throughout the lattice.	RESULTS
0	6	SGBP-A	protein	SGBP-A and SGBP-B have distinct, coordinated functions in vivo.	RESULTS
11	17	SGBP-B	protein	SGBP-A and SGBP-B have distinct, coordinated functions in vivo.	RESULTS
22	28	glycan	chemical	The similarity of the glycan specificity of SGBP-A and SGBP-B presents an intriguing conundrum regarding their individual roles in XyG utilization by B. ovatus.	RESULTS
44	50	SGBP-A	protein	The similarity of the glycan specificity of SGBP-A and SGBP-B presents an intriguing conundrum regarding their individual roles in XyG utilization by B. ovatus.	RESULTS
55	61	SGBP-B	protein	The similarity of the glycan specificity of SGBP-A and SGBP-B presents an intriguing conundrum regarding their individual roles in XyG utilization by B. ovatus.	RESULTS
131	134	XyG	chemical	The similarity of the glycan specificity of SGBP-A and SGBP-B presents an intriguing conundrum regarding their individual roles in XyG utilization by B. ovatus.	RESULTS
150	159	B. ovatus	species	The similarity of the glycan specificity of SGBP-A and SGBP-B presents an intriguing conundrum regarding their individual roles in XyG utilization by B. ovatus.	RESULTS
32	38	SGBP-A	protein	To disentangle the functions of SGBP-A and SGBP-B in XyG recognition and uptake, we created individual in-frame deletion and complementation mutant strains of B. ovatus.	RESULTS
43	49	SGBP-B	protein	To disentangle the functions of SGBP-A and SGBP-B in XyG recognition and uptake, we created individual in-frame deletion and complementation mutant strains of B. ovatus.	RESULTS
53	56	XyG	chemical	To disentangle the functions of SGBP-A and SGBP-B in XyG recognition and uptake, we created individual in-frame deletion and complementation mutant strains of B. ovatus.	RESULTS
103	147	in-frame deletion and complementation mutant	experimental_method	To disentangle the functions of SGBP-A and SGBP-B in XyG recognition and uptake, we created individual in-frame deletion and complementation mutant strains of B. ovatus.	RESULTS
159	168	B. ovatus	species	To disentangle the functions of SGBP-A and SGBP-B in XyG recognition and uptake, we created individual in-frame deletion and complementation mutant strains of B. ovatus.	RESULTS
9	27	growth experiments	experimental_method	In these growth experiments, overnight cultures of strains grown on minimal medium plus glucose were back-diluted 1:100-fold into minimal medium containing 5 mg/ml of the reported carbohydrate.	RESULTS
88	95	glucose	chemical	In these growth experiments, overnight cultures of strains grown on minimal medium plus glucose were back-diluted 1:100-fold into minimal medium containing 5 mg/ml of the reported carbohydrate.	RESULTS
180	192	carbohydrate	chemical	In these growth experiments, overnight cultures of strains grown on minimal medium plus glucose were back-diluted 1:100-fold into minimal medium containing 5 mg/ml of the reported carbohydrate.	RESULTS
10	17	glucose	chemical	Growth on glucose displayed the shortest lag time for each strain, and so lag times were normalized for each carbohydrate by subtracting the lag time of that strain in glucose (Fig. 6; see Fig. S8 in the supplemental material).	RESULTS
41	49	lag time	evidence	Growth on glucose displayed the shortest lag time for each strain, and so lag times were normalized for each carbohydrate by subtracting the lag time of that strain in glucose (Fig. 6; see Fig. S8 in the supplemental material).	RESULTS
74	83	lag times	evidence	Growth on glucose displayed the shortest lag time for each strain, and so lag times were normalized for each carbohydrate by subtracting the lag time of that strain in glucose (Fig. 6; see Fig. S8 in the supplemental material).	RESULTS
109	121	carbohydrate	chemical	Growth on glucose displayed the shortest lag time for each strain, and so lag times were normalized for each carbohydrate by subtracting the lag time of that strain in glucose (Fig. 6; see Fig. S8 in the supplemental material).	RESULTS
141	149	lag time	evidence	Growth on glucose displayed the shortest lag time for each strain, and so lag times were normalized for each carbohydrate by subtracting the lag time of that strain in glucose (Fig. 6; see Fig. S8 in the supplemental material).	RESULTS
168	175	glucose	chemical	Growth on glucose displayed the shortest lag time for each strain, and so lag times were normalized for each carbohydrate by subtracting the lag time of that strain in glucose (Fig. 6; see Fig. S8 in the supplemental material).	RESULTS
29	34	XyGUL	gene	A strain in which the entire XyGUL is deleted displays a lag of 24.5 h during growth on glucose compared to the isogenic parental wild-type (WT) Δtdk strain, for which exponential growth lags for 19.8 h (see Fig. S8D).	RESULTS
38	45	deleted	experimental_method	A strain in which the entire XyGUL is deleted displays a lag of 24.5 h during growth on glucose compared to the isogenic parental wild-type (WT) Δtdk strain, for which exponential growth lags for 19.8 h (see Fig. S8D).	RESULTS
57	60	lag	evidence	A strain in which the entire XyGUL is deleted displays a lag of 24.5 h during growth on glucose compared to the isogenic parental wild-type (WT) Δtdk strain, for which exponential growth lags for 19.8 h (see Fig. S8D).	RESULTS
88	95	glucose	chemical	A strain in which the entire XyGUL is deleted displays a lag of 24.5 h during growth on glucose compared to the isogenic parental wild-type (WT) Δtdk strain, for which exponential growth lags for 19.8 h (see Fig. S8D).	RESULTS
130	139	wild-type	protein_state	A strain in which the entire XyGUL is deleted displays a lag of 24.5 h during growth on glucose compared to the isogenic parental wild-type (WT) Δtdk strain, for which exponential growth lags for 19.8 h (see Fig. S8D).	RESULTS
141	143	WT	protein_state	A strain in which the entire XyGUL is deleted displays a lag of 24.5 h during growth on glucose compared to the isogenic parental wild-type (WT) Δtdk strain, for which exponential growth lags for 19.8 h (see Fig. S8D).	RESULTS
145	149	Δtdk	mutant	A strain in which the entire XyGUL is deleted displays a lag of 24.5 h during growth on glucose compared to the isogenic parental wild-type (WT) Δtdk strain, for which exponential growth lags for 19.8 h (see Fig. S8D).	RESULTS
187	191	lags	evidence	A strain in which the entire XyGUL is deleted displays a lag of 24.5 h during growth on glucose compared to the isogenic parental wild-type (WT) Δtdk strain, for which exponential growth lags for 19.8 h (see Fig. S8D).	RESULTS
151	158	glucose	chemical	It is unknown whether this is because cultures were not normalized by the starting optical density (OD) or viable cells or reflects a minor defect for glucose utilization.	RESULTS
91	98	glucose	chemical	The former seems more likely as the growth rates are nearly identical for these strains on glucose and xylose.	RESULTS
103	109	xylose	chemical	The former seems more likely as the growth rates are nearly identical for these strains on glucose and xylose.	RESULTS
4	10	ΔXyGUL	mutant	The ΔXyGUL and WT Δtdk strains display normalized lag times on xylose within experimental error, and curiously some of the mutant and complemented strains display a nominally shorter lag time on xylose than the WT Δtdk strain.	RESULTS
15	17	WT	protein_state	The ΔXyGUL and WT Δtdk strains display normalized lag times on xylose within experimental error, and curiously some of the mutant and complemented strains display a nominally shorter lag time on xylose than the WT Δtdk strain.	RESULTS
18	22	Δtdk	mutant	The ΔXyGUL and WT Δtdk strains display normalized lag times on xylose within experimental error, and curiously some of the mutant and complemented strains display a nominally shorter lag time on xylose than the WT Δtdk strain.	RESULTS
50	59	lag times	evidence	The ΔXyGUL and WT Δtdk strains display normalized lag times on xylose within experimental error, and curiously some of the mutant and complemented strains display a nominally shorter lag time on xylose than the WT Δtdk strain.	RESULTS
63	69	xylose	chemical	The ΔXyGUL and WT Δtdk strains display normalized lag times on xylose within experimental error, and curiously some of the mutant and complemented strains display a nominally shorter lag time on xylose than the WT Δtdk strain.	RESULTS
183	191	lag time	evidence	The ΔXyGUL and WT Δtdk strains display normalized lag times on xylose within experimental error, and curiously some of the mutant and complemented strains display a nominally shorter lag time on xylose than the WT Δtdk strain.	RESULTS
195	201	xylose	chemical	The ΔXyGUL and WT Δtdk strains display normalized lag times on xylose within experimental error, and curiously some of the mutant and complemented strains display a nominally shorter lag time on xylose than the WT Δtdk strain.	RESULTS
211	213	WT	protein_state	The ΔXyGUL and WT Δtdk strains display normalized lag times on xylose within experimental error, and curiously some of the mutant and complemented strains display a nominally shorter lag time on xylose than the WT Δtdk strain.	RESULTS
214	218	Δtdk	mutant	The ΔXyGUL and WT Δtdk strains display normalized lag times on xylose within experimental error, and curiously some of the mutant and complemented strains display a nominally shorter lag time on xylose than the WT Δtdk strain.	RESULTS
0	15	Complementation	experimental_method	Complementation of the ΔSGBP-A strain (ΔSGBP-A::SGBP-A) restores growth to wild-type rates on xyloglucan and XyGO1, yet the calculated rate of the complemented strain is ~72% that of the WT Δtdk strain on XyGO2; similar results were obtained for the SGBP-B complemented strain despite the fact that the growth curves do not appear much different (see Fig. S8C and F).	RESULTS
23	30	ΔSGBP-A	mutant	Complementation of the ΔSGBP-A strain (ΔSGBP-A::SGBP-A) restores growth to wild-type rates on xyloglucan and XyGO1, yet the calculated rate of the complemented strain is ~72% that of the WT Δtdk strain on XyGO2; similar results were obtained for the SGBP-B complemented strain despite the fact that the growth curves do not appear much different (see Fig. S8C and F).	RESULTS
39	46	ΔSGBP-A	mutant	Complementation of the ΔSGBP-A strain (ΔSGBP-A::SGBP-A) restores growth to wild-type rates on xyloglucan and XyGO1, yet the calculated rate of the complemented strain is ~72% that of the WT Δtdk strain on XyGO2; similar results were obtained for the SGBP-B complemented strain despite the fact that the growth curves do not appear much different (see Fig. S8C and F).	RESULTS
48	54	SGBP-A	protein	Complementation of the ΔSGBP-A strain (ΔSGBP-A::SGBP-A) restores growth to wild-type rates on xyloglucan and XyGO1, yet the calculated rate of the complemented strain is ~72% that of the WT Δtdk strain on XyGO2; similar results were obtained for the SGBP-B complemented strain despite the fact that the growth curves do not appear much different (see Fig. S8C and F).	RESULTS
75	84	wild-type	protein_state	Complementation of the ΔSGBP-A strain (ΔSGBP-A::SGBP-A) restores growth to wild-type rates on xyloglucan and XyGO1, yet the calculated rate of the complemented strain is ~72% that of the WT Δtdk strain on XyGO2; similar results were obtained for the SGBP-B complemented strain despite the fact that the growth curves do not appear much different (see Fig. S8C and F).	RESULTS
94	104	xyloglucan	chemical	Complementation of the ΔSGBP-A strain (ΔSGBP-A::SGBP-A) restores growth to wild-type rates on xyloglucan and XyGO1, yet the calculated rate of the complemented strain is ~72% that of the WT Δtdk strain on XyGO2; similar results were obtained for the SGBP-B complemented strain despite the fact that the growth curves do not appear much different (see Fig. S8C and F).	RESULTS
109	114	XyGO1	chemical	Complementation of the ΔSGBP-A strain (ΔSGBP-A::SGBP-A) restores growth to wild-type rates on xyloglucan and XyGO1, yet the calculated rate of the complemented strain is ~72% that of the WT Δtdk strain on XyGO2; similar results were obtained for the SGBP-B complemented strain despite the fact that the growth curves do not appear much different (see Fig. S8C and F).	RESULTS
187	189	WT	protein_state	Complementation of the ΔSGBP-A strain (ΔSGBP-A::SGBP-A) restores growth to wild-type rates on xyloglucan and XyGO1, yet the calculated rate of the complemented strain is ~72% that of the WT Δtdk strain on XyGO2; similar results were obtained for the SGBP-B complemented strain despite the fact that the growth curves do not appear much different (see Fig. S8C and F).	RESULTS
190	194	Δtdk	mutant	Complementation of the ΔSGBP-A strain (ΔSGBP-A::SGBP-A) restores growth to wild-type rates on xyloglucan and XyGO1, yet the calculated rate of the complemented strain is ~72% that of the WT Δtdk strain on XyGO2; similar results were obtained for the SGBP-B complemented strain despite the fact that the growth curves do not appear much different (see Fig. S8C and F).	RESULTS
205	210	XyGO2	chemical	Complementation of the ΔSGBP-A strain (ΔSGBP-A::SGBP-A) restores growth to wild-type rates on xyloglucan and XyGO1, yet the calculated rate of the complemented strain is ~72% that of the WT Δtdk strain on XyGO2; similar results were obtained for the SGBP-B complemented strain despite the fact that the growth curves do not appear much different (see Fig. S8C and F).	RESULTS
250	256	SGBP-B	protein	Complementation of the ΔSGBP-A strain (ΔSGBP-A::SGBP-A) restores growth to wild-type rates on xyloglucan and XyGO1, yet the calculated rate of the complemented strain is ~72% that of the WT Δtdk strain on XyGO2; similar results were obtained for the SGBP-B complemented strain despite the fact that the growth curves do not appear much different (see Fig. S8C and F).	RESULTS
35	40	XyGO2	chemical	The reason for this observation on XyGO2 is unclear, as the ΔSGBP-B mutant does not have a significantly different growth rate from the WT on XyGO2.	RESULTS
60	67	ΔSGBP-B	mutant	The reason for this observation on XyGO2 is unclear, as the ΔSGBP-B mutant does not have a significantly different growth rate from the WT on XyGO2.	RESULTS
68	74	mutant	protein_state	The reason for this observation on XyGO2 is unclear, as the ΔSGBP-B mutant does not have a significantly different growth rate from the WT on XyGO2.	RESULTS
136	138	WT	protein_state	The reason for this observation on XyGO2 is unclear, as the ΔSGBP-B mutant does not have a significantly different growth rate from the WT on XyGO2.	RESULTS
142	147	XyGO2	chemical	The reason for this observation on XyGO2 is unclear, as the ΔSGBP-B mutant does not have a significantly different growth rate from the WT on XyGO2.	RESULTS
17	22	XyGUL	gene	Growth of select XyGUL mutants on xyloglucan and oligosaccharides.	FIG
34	44	xyloglucan	chemical	Growth of select XyGUL mutants on xyloglucan and oligosaccharides.	FIG
49	65	oligosaccharides	chemical	Growth of select XyGUL mutants on xyloglucan and oligosaccharides.	FIG
0	9	B. ovatus	species	B. ovatus mutants were created in a thymidine kinase deletion (Δtdk) mutant as described previously.	FIG
36	61	thymidine kinase deletion	mutant	B. ovatus mutants were created in a thymidine kinase deletion (Δtdk) mutant as described previously.	FIG
63	67	Δtdk	mutant	B. ovatus mutants were created in a thymidine kinase deletion (Δtdk) mutant as described previously.	FIG
0	7	SGBP-A*	mutant	SGBP-A* denotes the Bacova_02651 (W82A W283A W306A) allele, and the GH9 gene is Bacova_02649.	FIG
20	32	Bacova_02651	gene	SGBP-A* denotes the Bacova_02651 (W82A W283A W306A) allele, and the GH9 gene is Bacova_02649.	FIG
34	38	W82A	mutant	SGBP-A* denotes the Bacova_02651 (W82A W283A W306A) allele, and the GH9 gene is Bacova_02649.	FIG
39	44	W283A	mutant	SGBP-A* denotes the Bacova_02651 (W82A W283A W306A) allele, and the GH9 gene is Bacova_02649.	FIG
45	50	W306A	mutant	SGBP-A* denotes the Bacova_02651 (W82A W283A W306A) allele, and the GH9 gene is Bacova_02649.	FIG
68	71	GH9	protein	SGBP-A* denotes the Bacova_02651 (W82A W283A W306A) allele, and the GH9 gene is Bacova_02649.	FIG
80	92	Bacova_02649	gene	SGBP-A* denotes the Bacova_02651 (W82A W283A W306A) allele, and the GH9 gene is Bacova_02649.	FIG
63	66	XyG	chemical	Growth was measured over time in minimal medium containing (A) XyG, (B) XyGO2, (C) XyGO1, (D) glucose, and (E) xylose.	FIG
72	77	XyGO2	chemical	Growth was measured over time in minimal medium containing (A) XyG, (B) XyGO2, (C) XyGO1, (D) glucose, and (E) xylose.	FIG
83	88	XyGO1	chemical	Growth was measured over time in minimal medium containing (A) XyG, (B) XyGO2, (C) XyGO1, (D) glucose, and (E) xylose.	FIG
94	101	glucose	chemical	Growth was measured over time in minimal medium containing (A) XyG, (B) XyGO2, (C) XyGO1, (D) glucose, and (E) xylose.	FIG
111	117	xylose	chemical	Growth was measured over time in minimal medium containing (A) XyG, (B) XyGO2, (C) XyGO1, (D) glucose, and (E) xylose.	FIG
115	123	lag time	evidence	In panel F, the growth rate of each strain on the five carbon sources is displayed, and in panel G, the normalized lag time of each culture, relative to its growth on glucose, is displayed.	FIG
167	174	glucose	chemical	In panel F, the growth rate of each strain on the five carbon sources is displayed, and in panel G, the normalized lag time of each culture, relative to its growth on glucose, is displayed.	FIG
79	81	WT	protein_state	Solid bars indicate conditions that are not statistically significant from the WT Δtdk cultures grown on the indicated carbohydrate, while open bars indicate a P value of <0.005 compared to the WT Δtdk strain.	FIG
82	86	Δtdk	mutant	Solid bars indicate conditions that are not statistically significant from the WT Δtdk cultures grown on the indicated carbohydrate, while open bars indicate a P value of <0.005 compared to the WT Δtdk strain.	FIG
119	131	carbohydrate	chemical	Solid bars indicate conditions that are not statistically significant from the WT Δtdk cultures grown on the indicated carbohydrate, while open bars indicate a P value of <0.005 compared to the WT Δtdk strain.	FIG
194	196	WT	protein_state	Solid bars indicate conditions that are not statistically significant from the WT Δtdk cultures grown on the indicated carbohydrate, while open bars indicate a P value of <0.005 compared to the WT Δtdk strain.	FIG
197	201	Δtdk	mutant	Solid bars indicate conditions that are not statistically significant from the WT Δtdk cultures grown on the indicated carbohydrate, while open bars indicate a P value of <0.005 compared to the WT Δtdk strain.	FIG
184	191	ΔSGBP-A	mutant	Conditions denoted by the same letter (b, c, or d) are not statistically significant from each other but are significantly different from the condition labeled “a.” Complementation of ΔSGBP-A and ΔSBGP-B was performed by allelic exchange of the wild-type genes back into the genome for expression via the native promoter: these growth curves, quantified rates and lag times are displayed in Fig. S8 in the supplemental material.	FIG
196	203	ΔSBGP-B	mutant	Conditions denoted by the same letter (b, c, or d) are not statistically significant from each other but are significantly different from the condition labeled “a.” Complementation of ΔSGBP-A and ΔSBGP-B was performed by allelic exchange of the wild-type genes back into the genome for expression via the native promoter: these growth curves, quantified rates and lag times are displayed in Fig. S8 in the supplemental material.	FIG
245	254	wild-type	protein_state	Conditions denoted by the same letter (b, c, or d) are not statistically significant from each other but are significantly different from the condition labeled “a.” Complementation of ΔSGBP-A and ΔSBGP-B was performed by allelic exchange of the wild-type genes back into the genome for expression via the native promoter: these growth curves, quantified rates and lag times are displayed in Fig. S8 in the supplemental material.	FIG
364	373	lag times	evidence	Conditions denoted by the same letter (b, c, or d) are not statistically significant from each other but are significantly different from the condition labeled “a.” Complementation of ΔSGBP-A and ΔSBGP-B was performed by allelic exchange of the wild-type genes back into the genome for expression via the native promoter: these growth curves, quantified rates and lag times are displayed in Fig. S8 in the supplemental material.	FIG
4	11	ΔSGBP-A	mutant	The ΔSGBP-A (ΔBacova_02651) strain (cf.	RESULTS
13	26	ΔBacova_02651	mutant	The ΔSGBP-A (ΔBacova_02651) strain (cf.	RESULTS
47	50	XyG	chemical	Fig. 1B) was completely incapable of growth on XyG, XyGO1, and XyGO2, indicating that SGBP-A is essential for XyG utilization (Fig. 6).	RESULTS
52	57	XyGO1	chemical	Fig. 1B) was completely incapable of growth on XyG, XyGO1, and XyGO2, indicating that SGBP-A is essential for XyG utilization (Fig. 6).	RESULTS
63	68	XyGO2	chemical	Fig. 1B) was completely incapable of growth on XyG, XyGO1, and XyGO2, indicating that SGBP-A is essential for XyG utilization (Fig. 6).	RESULTS
86	92	SGBP-A	protein	Fig. 1B) was completely incapable of growth on XyG, XyGO1, and XyGO2, indicating that SGBP-A is essential for XyG utilization (Fig. 6).	RESULTS
110	113	XyG	chemical	Fig. 1B) was completely incapable of growth on XyG, XyGO1, and XyGO2, indicating that SGBP-A is essential for XyG utilization (Fig. 6).	RESULTS
56	59	Sus	complex_assembly	This result mirrors our previous data for the canonical Sus of B. thetaiotaomicron, which revealed that a homologous ΔsusD mutant is unable to grow on starch or malto-oligosaccharides, despite normal cell surface expression of all other PUL-encoded proteins.	RESULTS
63	82	B. thetaiotaomicron	species	This result mirrors our previous data for the canonical Sus of B. thetaiotaomicron, which revealed that a homologous ΔsusD mutant is unable to grow on starch or malto-oligosaccharides, despite normal cell surface expression of all other PUL-encoded proteins.	RESULTS
117	122	ΔsusD	mutant	This result mirrors our previous data for the canonical Sus of B. thetaiotaomicron, which revealed that a homologous ΔsusD mutant is unable to grow on starch or malto-oligosaccharides, despite normal cell surface expression of all other PUL-encoded proteins.	RESULTS
123	129	mutant	protein_state	This result mirrors our previous data for the canonical Sus of B. thetaiotaomicron, which revealed that a homologous ΔsusD mutant is unable to grow on starch or malto-oligosaccharides, despite normal cell surface expression of all other PUL-encoded proteins.	RESULTS
151	157	starch	chemical	This result mirrors our previous data for the canonical Sus of B. thetaiotaomicron, which revealed that a homologous ΔsusD mutant is unable to grow on starch or malto-oligosaccharides, despite normal cell surface expression of all other PUL-encoded proteins.	RESULTS
161	183	malto-oligosaccharides	chemical	This result mirrors our previous data for the canonical Sus of B. thetaiotaomicron, which revealed that a homologous ΔsusD mutant is unable to grow on starch or malto-oligosaccharides, despite normal cell surface expression of all other PUL-encoded proteins.	RESULTS
237	240	PUL	gene	This result mirrors our previous data for the canonical Sus of B. thetaiotaomicron, which revealed that a homologous ΔsusD mutant is unable to grow on starch or malto-oligosaccharides, despite normal cell surface expression of all other PUL-encoded proteins.	RESULTS
98	102	SusD	protein	More recently, we demonstrated that this phenotype is due to the loss of the physical presence of SusD; complementation of ΔsusD with SusD*, a triple site-directed mutant (W96A W320A Y296A) that ablates glycan binding, restores B. thetaiotaomicron growth on malto-oligosaccharides and starch when sus transcription is induced by maltose addition.	RESULTS
104	119	complementation	experimental_method	More recently, we demonstrated that this phenotype is due to the loss of the physical presence of SusD; complementation of ΔsusD with SusD*, a triple site-directed mutant (W96A W320A Y296A) that ablates glycan binding, restores B. thetaiotaomicron growth on malto-oligosaccharides and starch when sus transcription is induced by maltose addition.	RESULTS
123	128	ΔsusD	mutant	More recently, we demonstrated that this phenotype is due to the loss of the physical presence of SusD; complementation of ΔsusD with SusD*, a triple site-directed mutant (W96A W320A Y296A) that ablates glycan binding, restores B. thetaiotaomicron growth on malto-oligosaccharides and starch when sus transcription is induced by maltose addition.	RESULTS
134	139	SusD*	mutant	More recently, we demonstrated that this phenotype is due to the loss of the physical presence of SusD; complementation of ΔsusD with SusD*, a triple site-directed mutant (W96A W320A Y296A) that ablates glycan binding, restores B. thetaiotaomicron growth on malto-oligosaccharides and starch when sus transcription is induced by maltose addition.	RESULTS
143	170	triple site-directed mutant	protein_state	More recently, we demonstrated that this phenotype is due to the loss of the physical presence of SusD; complementation of ΔsusD with SusD*, a triple site-directed mutant (W96A W320A Y296A) that ablates glycan binding, restores B. thetaiotaomicron growth on malto-oligosaccharides and starch when sus transcription is induced by maltose addition.	RESULTS
172	176	W96A	mutant	More recently, we demonstrated that this phenotype is due to the loss of the physical presence of SusD; complementation of ΔsusD with SusD*, a triple site-directed mutant (W96A W320A Y296A) that ablates glycan binding, restores B. thetaiotaomicron growth on malto-oligosaccharides and starch when sus transcription is induced by maltose addition.	RESULTS
177	182	W320A	mutant	More recently, we demonstrated that this phenotype is due to the loss of the physical presence of SusD; complementation of ΔsusD with SusD*, a triple site-directed mutant (W96A W320A Y296A) that ablates glycan binding, restores B. thetaiotaomicron growth on malto-oligosaccharides and starch when sus transcription is induced by maltose addition.	RESULTS
183	188	Y296A	mutant	More recently, we demonstrated that this phenotype is due to the loss of the physical presence of SusD; complementation of ΔsusD with SusD*, a triple site-directed mutant (W96A W320A Y296A) that ablates glycan binding, restores B. thetaiotaomicron growth on malto-oligosaccharides and starch when sus transcription is induced by maltose addition.	RESULTS
195	217	ablates glycan binding	protein_state	More recently, we demonstrated that this phenotype is due to the loss of the physical presence of SusD; complementation of ΔsusD with SusD*, a triple site-directed mutant (W96A W320A Y296A) that ablates glycan binding, restores B. thetaiotaomicron growth on malto-oligosaccharides and starch when sus transcription is induced by maltose addition.	RESULTS
228	247	B. thetaiotaomicron	species	More recently, we demonstrated that this phenotype is due to the loss of the physical presence of SusD; complementation of ΔsusD with SusD*, a triple site-directed mutant (W96A W320A Y296A) that ablates glycan binding, restores B. thetaiotaomicron growth on malto-oligosaccharides and starch when sus transcription is induced by maltose addition.	RESULTS
258	280	malto-oligosaccharides	chemical	More recently, we demonstrated that this phenotype is due to the loss of the physical presence of SusD; complementation of ΔsusD with SusD*, a triple site-directed mutant (W96A W320A Y296A) that ablates glycan binding, restores B. thetaiotaomicron growth on malto-oligosaccharides and starch when sus transcription is induced by maltose addition.	RESULTS
285	291	starch	chemical	More recently, we demonstrated that this phenotype is due to the loss of the physical presence of SusD; complementation of ΔsusD with SusD*, a triple site-directed mutant (W96A W320A Y296A) that ablates glycan binding, restores B. thetaiotaomicron growth on malto-oligosaccharides and starch when sus transcription is induced by maltose addition.	RESULTS
297	300	sus	gene	More recently, we demonstrated that this phenotype is due to the loss of the physical presence of SusD; complementation of ΔsusD with SusD*, a triple site-directed mutant (W96A W320A Y296A) that ablates glycan binding, restores B. thetaiotaomicron growth on malto-oligosaccharides and starch when sus transcription is induced by maltose addition.	RESULTS
329	336	maltose	chemical	More recently, we demonstrated that this phenotype is due to the loss of the physical presence of SusD; complementation of ΔsusD with SusD*, a triple site-directed mutant (W96A W320A Y296A) that ablates glycan binding, restores B. thetaiotaomicron growth on malto-oligosaccharides and starch when sus transcription is induced by maltose addition.	RESULTS
27	33	SGBP-A	protein	Similarly, the function of SGBP-A extends beyond glycan binding.	RESULTS
49	55	glycan	chemical	Similarly, the function of SGBP-A extends beyond glycan binding.	RESULTS
0	15	Complementation	experimental_method	Complementation of ΔSGBP-A with the SGBP-A* (W82A W283A W306A) variant, which does not bind XyG, supports growth on XyG and XyGOs (Fig. 6; ΔSGBP-A::SGBP-A*), with growth rates that are ~70% that of the WT.	RESULTS
19	26	ΔSGBP-A	mutant	Complementation of ΔSGBP-A with the SGBP-A* (W82A W283A W306A) variant, which does not bind XyG, supports growth on XyG and XyGOs (Fig. 6; ΔSGBP-A::SGBP-A*), with growth rates that are ~70% that of the WT.	RESULTS
36	43	SGBP-A*	mutant	Complementation of ΔSGBP-A with the SGBP-A* (W82A W283A W306A) variant, which does not bind XyG, supports growth on XyG and XyGOs (Fig. 6; ΔSGBP-A::SGBP-A*), with growth rates that are ~70% that of the WT.	RESULTS
45	49	W82A	mutant	Complementation of ΔSGBP-A with the SGBP-A* (W82A W283A W306A) variant, which does not bind XyG, supports growth on XyG and XyGOs (Fig. 6; ΔSGBP-A::SGBP-A*), with growth rates that are ~70% that of the WT.	RESULTS
50	55	W283A	mutant	Complementation of ΔSGBP-A with the SGBP-A* (W82A W283A W306A) variant, which does not bind XyG, supports growth on XyG and XyGOs (Fig. 6; ΔSGBP-A::SGBP-A*), with growth rates that are ~70% that of the WT.	RESULTS
56	61	W306A	mutant	Complementation of ΔSGBP-A with the SGBP-A* (W82A W283A W306A) variant, which does not bind XyG, supports growth on XyG and XyGOs (Fig. 6; ΔSGBP-A::SGBP-A*), with growth rates that are ~70% that of the WT.	RESULTS
83	91	not bind	protein_state	Complementation of ΔSGBP-A with the SGBP-A* (W82A W283A W306A) variant, which does not bind XyG, supports growth on XyG and XyGOs (Fig. 6; ΔSGBP-A::SGBP-A*), with growth rates that are ~70% that of the WT.	RESULTS
92	95	XyG	chemical	Complementation of ΔSGBP-A with the SGBP-A* (W82A W283A W306A) variant, which does not bind XyG, supports growth on XyG and XyGOs (Fig. 6; ΔSGBP-A::SGBP-A*), with growth rates that are ~70% that of the WT.	RESULTS
116	119	XyG	chemical	Complementation of ΔSGBP-A with the SGBP-A* (W82A W283A W306A) variant, which does not bind XyG, supports growth on XyG and XyGOs (Fig. 6; ΔSGBP-A::SGBP-A*), with growth rates that are ~70% that of the WT.	RESULTS
124	129	XyGOs	chemical	Complementation of ΔSGBP-A with the SGBP-A* (W82A W283A W306A) variant, which does not bind XyG, supports growth on XyG and XyGOs (Fig. 6; ΔSGBP-A::SGBP-A*), with growth rates that are ~70% that of the WT.	RESULTS
139	146	ΔSGBP-A	mutant	Complementation of ΔSGBP-A with the SGBP-A* (W82A W283A W306A) variant, which does not bind XyG, supports growth on XyG and XyGOs (Fig. 6; ΔSGBP-A::SGBP-A*), with growth rates that are ~70% that of the WT.	RESULTS
148	155	SGBP-A*	mutant	Complementation of ΔSGBP-A with the SGBP-A* (W82A W283A W306A) variant, which does not bind XyG, supports growth on XyG and XyGOs (Fig. 6; ΔSGBP-A::SGBP-A*), with growth rates that are ~70% that of the WT.	RESULTS
202	204	WT	protein_state	Complementation of ΔSGBP-A with the SGBP-A* (W82A W283A W306A) variant, which does not bind XyG, supports growth on XyG and XyGOs (Fig. 6; ΔSGBP-A::SGBP-A*), with growth rates that are ~70% that of the WT.	RESULTS
38	50	carbohydrate	chemical	In previous studies, we observed that carbohydrate binding by SusD enhanced the sensitivity of the cells to limiting concentrations of malto-oligosaccharides by several orders of magnitude, such that the addition of 0.5 g/liter maltose was required to restore growth of the ΔsusD::SusD* strain on starch, which nonetheless occurred following an extended lag phase.	RESULTS
62	66	SusD	protein	In previous studies, we observed that carbohydrate binding by SusD enhanced the sensitivity of the cells to limiting concentrations of malto-oligosaccharides by several orders of magnitude, such that the addition of 0.5 g/liter maltose was required to restore growth of the ΔsusD::SusD* strain on starch, which nonetheless occurred following an extended lag phase.	RESULTS
228	235	maltose	chemical	In previous studies, we observed that carbohydrate binding by SusD enhanced the sensitivity of the cells to limiting concentrations of malto-oligosaccharides by several orders of magnitude, such that the addition of 0.5 g/liter maltose was required to restore growth of the ΔsusD::SusD* strain on starch, which nonetheless occurred following an extended lag phase.	RESULTS
274	279	ΔsusD	mutant	In previous studies, we observed that carbohydrate binding by SusD enhanced the sensitivity of the cells to limiting concentrations of malto-oligosaccharides by several orders of magnitude, such that the addition of 0.5 g/liter maltose was required to restore growth of the ΔsusD::SusD* strain on starch, which nonetheless occurred following an extended lag phase.	RESULTS
281	286	SusD*	mutant	In previous studies, we observed that carbohydrate binding by SusD enhanced the sensitivity of the cells to limiting concentrations of malto-oligosaccharides by several orders of magnitude, such that the addition of 0.5 g/liter maltose was required to restore growth of the ΔsusD::SusD* strain on starch, which nonetheless occurred following an extended lag phase.	RESULTS
297	303	starch	chemical	In previous studies, we observed that carbohydrate binding by SusD enhanced the sensitivity of the cells to limiting concentrations of malto-oligosaccharides by several orders of magnitude, such that the addition of 0.5 g/liter maltose was required to restore growth of the ΔsusD::SusD* strain on starch, which nonetheless occurred following an extended lag phase.	RESULTS
354	363	lag phase	evidence	In previous studies, we observed that carbohydrate binding by SusD enhanced the sensitivity of the cells to limiting concentrations of malto-oligosaccharides by several orders of magnitude, such that the addition of 0.5 g/liter maltose was required to restore growth of the ΔsusD::SusD* strain on starch, which nonetheless occurred following an extended lag phase.	RESULTS
17	24	ΔSGBP-A	mutant	In contrast, the ΔSGBP-A::SGBP-A* strain does not display an extended lag time on any of the xyloglucan substrates compared to the WT (Fig. 6).	RESULTS
26	33	SGBP-A*	mutant	In contrast, the ΔSGBP-A::SGBP-A* strain does not display an extended lag time on any of the xyloglucan substrates compared to the WT (Fig. 6).	RESULTS
70	78	lag time	evidence	In contrast, the ΔSGBP-A::SGBP-A* strain does not display an extended lag time on any of the xyloglucan substrates compared to the WT (Fig. 6).	RESULTS
93	103	xyloglucan	chemical	In contrast, the ΔSGBP-A::SGBP-A* strain does not display an extended lag time on any of the xyloglucan substrates compared to the WT (Fig. 6).	RESULTS
131	133	WT	protein_state	In contrast, the ΔSGBP-A::SGBP-A* strain does not display an extended lag time on any of the xyloglucan substrates compared to the WT (Fig. 6).	RESULTS
13	19	glycan	chemical	The specific glycan signal that upregulates BoXyGUL is currently unknown.	RESULTS
44	51	BoXyGUL	gene	The specific glycan signal that upregulates BoXyGUL is currently unknown.	RESULTS
68	74	glycan	chemical	From our present data, we cannot eliminate the possibility that the glycan binding by SGBP-A enhances transcriptional activation of the XyGUL.	RESULTS
86	92	SGBP-A	protein	From our present data, we cannot eliminate the possibility that the glycan binding by SGBP-A enhances transcriptional activation of the XyGUL.	RESULTS
136	141	XyGUL	gene	From our present data, we cannot eliminate the possibility that the glycan binding by SGBP-A enhances transcriptional activation of the XyGUL.	RESULTS
49	55	SGBP-A	protein	However, the modest rate defect displayed by the SGBP-A::SGBP-A* strain suggests that recognition of XyG and product import is somewhat less efficient in these cells.	RESULTS
57	64	SGBP-A*	mutant	However, the modest rate defect displayed by the SGBP-A::SGBP-A* strain suggests that recognition of XyG and product import is somewhat less efficient in these cells.	RESULTS
101	104	XyG	chemical	However, the modest rate defect displayed by the SGBP-A::SGBP-A* strain suggests that recognition of XyG and product import is somewhat less efficient in these cells.	RESULTS
18	25	ΔSGBP-B	mutant	Intriguingly, the ΔSGBP-B strain (ΔBacova_02650) (cf.	RESULTS
34	47	ΔBacova_02650	mutant	Intriguingly, the ΔSGBP-B strain (ΔBacova_02650) (cf.	RESULTS
49	52	XyG	chemical	Fig. 1B) exhibited a minor growth defect on both XyG and XyGO2, with rates 84.6% and 93.9% that of the WT Δtdk strain.	RESULTS
57	62	XyGO2	chemical	Fig. 1B) exhibited a minor growth defect on both XyG and XyGO2, with rates 84.6% and 93.9% that of the WT Δtdk strain.	RESULTS
103	105	WT	protein_state	Fig. 1B) exhibited a minor growth defect on both XyG and XyGO2, with rates 84.6% and 93.9% that of the WT Δtdk strain.	RESULTS
106	110	Δtdk	mutant	Fig. 1B) exhibited a minor growth defect on both XyG and XyGO2, with rates 84.6% and 93.9% that of the WT Δtdk strain.	RESULTS
23	30	ΔSGBP-B	mutant	However, growth of the ΔSGBP-B strain on XyGO1 was 54.2% the rate of the parental strain, despite the fact that SGBP-B binds this substrate ca.	RESULTS
41	46	XyGO1	chemical	However, growth of the ΔSGBP-B strain on XyGO1 was 54.2% the rate of the parental strain, despite the fact that SGBP-B binds this substrate ca.	RESULTS
112	118	SGBP-B	protein	However, growth of the ΔSGBP-B strain on XyGO1 was 54.2% the rate of the parental strain, despite the fact that SGBP-B binds this substrate ca.	RESULTS
25	30	XyGO2	chemical	10-fold more weakly than XyGO2 and XyG (Fig. 6; Table 1).	RESULTS
35	38	XyG	chemical	10-fold more weakly than XyGO2 and XyG (Fig. 6; Table 1).	RESULTS
31	37	SGBP-A	protein	As such, the data suggest that SGBP-A can compensate for the loss of function of SGBP-B on longer oligo- and polysaccharides, while SGBP-B may adapt the cell to recognize smaller oligosaccharides efficiently.	RESULTS
81	87	SGBP-B	protein	As such, the data suggest that SGBP-A can compensate for the loss of function of SGBP-B on longer oligo- and polysaccharides, while SGBP-B may adapt the cell to recognize smaller oligosaccharides efficiently.	RESULTS
98	124	oligo- and polysaccharides	chemical	As such, the data suggest that SGBP-A can compensate for the loss of function of SGBP-B on longer oligo- and polysaccharides, while SGBP-B may adapt the cell to recognize smaller oligosaccharides efficiently.	RESULTS
132	138	SGBP-B	protein	As such, the data suggest that SGBP-A can compensate for the loss of function of SGBP-B on longer oligo- and polysaccharides, while SGBP-B may adapt the cell to recognize smaller oligosaccharides efficiently.	RESULTS
179	195	oligosaccharides	chemical	As such, the data suggest that SGBP-A can compensate for the loss of function of SGBP-B on longer oligo- and polysaccharides, while SGBP-B may adapt the cell to recognize smaller oligosaccharides efficiently.	RESULTS
10	23	double mutant	protein_state	Indeed, a double mutant, consisting of a crippled SGBP-A and a deletion of SGBP-B (ΔSGBP-A::SGBP-A*/ΔSGBP-B), exhibits an extended lag time on both XyG and XyGO2, as well as XyGO1.	RESULTS
41	49	crippled	protein_state	Indeed, a double mutant, consisting of a crippled SGBP-A and a deletion of SGBP-B (ΔSGBP-A::SGBP-A*/ΔSGBP-B), exhibits an extended lag time on both XyG and XyGO2, as well as XyGO1.	RESULTS
50	56	SGBP-A	protein	Indeed, a double mutant, consisting of a crippled SGBP-A and a deletion of SGBP-B (ΔSGBP-A::SGBP-A*/ΔSGBP-B), exhibits an extended lag time on both XyG and XyGO2, as well as XyGO1.	RESULTS
63	74	deletion of	experimental_method	Indeed, a double mutant, consisting of a crippled SGBP-A and a deletion of SGBP-B (ΔSGBP-A::SGBP-A*/ΔSGBP-B), exhibits an extended lag time on both XyG and XyGO2, as well as XyGO1.	RESULTS
75	81	SGBP-B	protein	Indeed, a double mutant, consisting of a crippled SGBP-A and a deletion of SGBP-B (ΔSGBP-A::SGBP-A*/ΔSGBP-B), exhibits an extended lag time on both XyG and XyGO2, as well as XyGO1.	RESULTS
83	90	ΔSGBP-A	mutant	Indeed, a double mutant, consisting of a crippled SGBP-A and a deletion of SGBP-B (ΔSGBP-A::SGBP-A*/ΔSGBP-B), exhibits an extended lag time on both XyG and XyGO2, as well as XyGO1.	RESULTS
92	99	SGBP-A*	mutant	Indeed, a double mutant, consisting of a crippled SGBP-A and a deletion of SGBP-B (ΔSGBP-A::SGBP-A*/ΔSGBP-B), exhibits an extended lag time on both XyG and XyGO2, as well as XyGO1.	RESULTS
100	107	ΔSGBP-B	mutant	Indeed, a double mutant, consisting of a crippled SGBP-A and a deletion of SGBP-B (ΔSGBP-A::SGBP-A*/ΔSGBP-B), exhibits an extended lag time on both XyG and XyGO2, as well as XyGO1.	RESULTS
131	139	lag time	evidence	Indeed, a double mutant, consisting of a crippled SGBP-A and a deletion of SGBP-B (ΔSGBP-A::SGBP-A*/ΔSGBP-B), exhibits an extended lag time on both XyG and XyGO2, as well as XyGO1.	RESULTS
148	151	XyG	chemical	Indeed, a double mutant, consisting of a crippled SGBP-A and a deletion of SGBP-B (ΔSGBP-A::SGBP-A*/ΔSGBP-B), exhibits an extended lag time on both XyG and XyGO2, as well as XyGO1.	RESULTS
156	161	XyGO2	chemical	Indeed, a double mutant, consisting of a crippled SGBP-A and a deletion of SGBP-B (ΔSGBP-A::SGBP-A*/ΔSGBP-B), exhibits an extended lag time on both XyG and XyGO2, as well as XyGO1.	RESULTS
174	179	XyGO1	chemical	Indeed, a double mutant, consisting of a crippled SGBP-A and a deletion of SGBP-B (ΔSGBP-A::SGBP-A*/ΔSGBP-B), exhibits an extended lag time on both XyG and XyGO2, as well as XyGO1.	RESULTS
39	45	SGBP-A	protein	Taken together, the data indicate that SGBP-A and SGBP-B functionally complement each other in the capture of XyG polysaccharide, while SGBP-B may allow B. ovatus to scavenge smaller XyGOs liberated by other gut commensals.	RESULTS
50	56	SGBP-B	protein	Taken together, the data indicate that SGBP-A and SGBP-B functionally complement each other in the capture of XyG polysaccharide, while SGBP-B may allow B. ovatus to scavenge smaller XyGOs liberated by other gut commensals.	RESULTS
110	113	XyG	chemical	Taken together, the data indicate that SGBP-A and SGBP-B functionally complement each other in the capture of XyG polysaccharide, while SGBP-B may allow B. ovatus to scavenge smaller XyGOs liberated by other gut commensals.	RESULTS
114	128	polysaccharide	chemical	Taken together, the data indicate that SGBP-A and SGBP-B functionally complement each other in the capture of XyG polysaccharide, while SGBP-B may allow B. ovatus to scavenge smaller XyGOs liberated by other gut commensals.	RESULTS
136	142	SGBP-B	protein	Taken together, the data indicate that SGBP-A and SGBP-B functionally complement each other in the capture of XyG polysaccharide, while SGBP-B may allow B. ovatus to scavenge smaller XyGOs liberated by other gut commensals.	RESULTS
153	162	B. ovatus	species	Taken together, the data indicate that SGBP-A and SGBP-B functionally complement each other in the capture of XyG polysaccharide, while SGBP-B may allow B. ovatus to scavenge smaller XyGOs liberated by other gut commensals.	RESULTS
183	188	XyGOs	chemical	Taken together, the data indicate that SGBP-A and SGBP-B functionally complement each other in the capture of XyG polysaccharide, while SGBP-B may allow B. ovatus to scavenge smaller XyGOs liberated by other gut commensals.	RESULTS
24	30	SGBP-B	protein	This additional role of SGBP-B is especially notable in the context of studies on BtSusE and BtSusF (positioned similarly in the archetypal Sus locus) (Fig. 1B), for which growth defects on starch or malto-oligosaccharides have never been observed.	RESULTS
82	88	BtSusE	protein	This additional role of SGBP-B is especially notable in the context of studies on BtSusE and BtSusF (positioned similarly in the archetypal Sus locus) (Fig. 1B), for which growth defects on starch or malto-oligosaccharides have never been observed.	RESULTS
93	99	BtSusF	protein	This additional role of SGBP-B is especially notable in the context of studies on BtSusE and BtSusF (positioned similarly in the archetypal Sus locus) (Fig. 1B), for which growth defects on starch or malto-oligosaccharides have never been observed.	RESULTS
140	149	Sus locus	gene	This additional role of SGBP-B is especially notable in the context of studies on BtSusE and BtSusF (positioned similarly in the archetypal Sus locus) (Fig. 1B), for which growth defects on starch or malto-oligosaccharides have never been observed.	RESULTS
190	196	starch	chemical	This additional role of SGBP-B is especially notable in the context of studies on BtSusE and BtSusF (positioned similarly in the archetypal Sus locus) (Fig. 1B), for which growth defects on starch or malto-oligosaccharides have never been observed.	RESULTS
200	222	malto-oligosaccharides	chemical	This additional role of SGBP-B is especially notable in the context of studies on BtSusE and BtSusF (positioned similarly in the archetypal Sus locus) (Fig. 1B), for which growth defects on starch or malto-oligosaccharides have never been observed.	RESULTS
7	13	SGBP-A	protein	Beyond SGBP-A and SGBP-B, we speculated that the catalytically feeble endo-xyloglucanase GH9, which is expendable for growth in the presence of GH5, might also play a role in glycan binding to the cell surface.	RESULTS
18	24	SGBP-B	protein	Beyond SGBP-A and SGBP-B, we speculated that the catalytically feeble endo-xyloglucanase GH9, which is expendable for growth in the presence of GH5, might also play a role in glycan binding to the cell surface.	RESULTS
49	69	catalytically feeble	protein_state	Beyond SGBP-A and SGBP-B, we speculated that the catalytically feeble endo-xyloglucanase GH9, which is expendable for growth in the presence of GH5, might also play a role in glycan binding to the cell surface.	RESULTS
70	88	endo-xyloglucanase	protein_type	Beyond SGBP-A and SGBP-B, we speculated that the catalytically feeble endo-xyloglucanase GH9, which is expendable for growth in the presence of GH5, might also play a role in glycan binding to the cell surface.	RESULTS
89	92	GH9	protein	Beyond SGBP-A and SGBP-B, we speculated that the catalytically feeble endo-xyloglucanase GH9, which is expendable for growth in the presence of GH5, might also play a role in glycan binding to the cell surface.	RESULTS
144	147	GH5	protein	Beyond SGBP-A and SGBP-B, we speculated that the catalytically feeble endo-xyloglucanase GH9, which is expendable for growth in the presence of GH5, might also play a role in glycan binding to the cell surface.	RESULTS
175	181	glycan	chemical	Beyond SGBP-A and SGBP-B, we speculated that the catalytically feeble endo-xyloglucanase GH9, which is expendable for growth in the presence of GH5, might also play a role in glycan binding to the cell surface.	RESULTS
9	48	combined deletion of the genes encoding	experimental_method	However, combined deletion of the genes encoding GH9 (encoded by Bacova_02649) and SGBP-B does not exacerbate the growth defect on XyGO1 (Fig. 6; ΔSGBP-B/ΔGH9).	RESULTS
49	52	GH9	protein	However, combined deletion of the genes encoding GH9 (encoded by Bacova_02649) and SGBP-B does not exacerbate the growth defect on XyGO1 (Fig. 6; ΔSGBP-B/ΔGH9).	RESULTS
65	77	Bacova_02649	gene	However, combined deletion of the genes encoding GH9 (encoded by Bacova_02649) and SGBP-B does not exacerbate the growth defect on XyGO1 (Fig. 6; ΔSGBP-B/ΔGH9).	RESULTS
83	89	SGBP-B	protein	However, combined deletion of the genes encoding GH9 (encoded by Bacova_02649) and SGBP-B does not exacerbate the growth defect on XyGO1 (Fig. 6; ΔSGBP-B/ΔGH9).	RESULTS
131	136	XyGO1	chemical	However, combined deletion of the genes encoding GH9 (encoded by Bacova_02649) and SGBP-B does not exacerbate the growth defect on XyGO1 (Fig. 6; ΔSGBP-B/ΔGH9).	RESULTS
146	153	ΔSGBP-B	mutant	However, combined deletion of the genes encoding GH9 (encoded by Bacova_02649) and SGBP-B does not exacerbate the growth defect on XyGO1 (Fig. 6; ΔSGBP-B/ΔGH9).	RESULTS
154	158	ΔGH9	mutant	However, combined deletion of the genes encoding GH9 (encoded by Bacova_02649) and SGBP-B does not exacerbate the growth defect on XyGO1 (Fig. 6; ΔSGBP-B/ΔGH9).	RESULTS
17	23	SGBP-B	protein	The necessity of SGBP-B is elevated in the SGBP-A* strain, as the ΔSGBP-A::SGBP-A*/ ΔSGBP-B mutant displays an extended lag during growth on XyG and xylogluco-oligosaccharides, while growth rate differences are more subtle.	RESULTS
43	50	SGBP-A*	mutant	The necessity of SGBP-B is elevated in the SGBP-A* strain, as the ΔSGBP-A::SGBP-A*/ ΔSGBP-B mutant displays an extended lag during growth on XyG and xylogluco-oligosaccharides, while growth rate differences are more subtle.	RESULTS
66	73	ΔSGBP-A	mutant	The necessity of SGBP-B is elevated in the SGBP-A* strain, as the ΔSGBP-A::SGBP-A*/ ΔSGBP-B mutant displays an extended lag during growth on XyG and xylogluco-oligosaccharides, while growth rate differences are more subtle.	RESULTS
75	82	SGBP-A*	mutant	The necessity of SGBP-B is elevated in the SGBP-A* strain, as the ΔSGBP-A::SGBP-A*/ ΔSGBP-B mutant displays an extended lag during growth on XyG and xylogluco-oligosaccharides, while growth rate differences are more subtle.	RESULTS
84	91	ΔSGBP-B	mutant	The necessity of SGBP-B is elevated in the SGBP-A* strain, as the ΔSGBP-A::SGBP-A*/ ΔSGBP-B mutant displays an extended lag during growth on XyG and xylogluco-oligosaccharides, while growth rate differences are more subtle.	RESULTS
92	98	mutant	protein_state	The necessity of SGBP-B is elevated in the SGBP-A* strain, as the ΔSGBP-A::SGBP-A*/ ΔSGBP-B mutant displays an extended lag during growth on XyG and xylogluco-oligosaccharides, while growth rate differences are more subtle.	RESULTS
120	123	lag	evidence	The necessity of SGBP-B is elevated in the SGBP-A* strain, as the ΔSGBP-A::SGBP-A*/ ΔSGBP-B mutant displays an extended lag during growth on XyG and xylogluco-oligosaccharides, while growth rate differences are more subtle.	RESULTS
141	144	XyG	chemical	The necessity of SGBP-B is elevated in the SGBP-A* strain, as the ΔSGBP-A::SGBP-A*/ ΔSGBP-B mutant displays an extended lag during growth on XyG and xylogluco-oligosaccharides, while growth rate differences are more subtle.	RESULTS
149	175	xylogluco-oligosaccharides	chemical	The necessity of SGBP-B is elevated in the SGBP-A* strain, as the ΔSGBP-A::SGBP-A*/ ΔSGBP-B mutant displays an extended lag during growth on XyG and xylogluco-oligosaccharides, while growth rate differences are more subtle.	RESULTS
28	31	lag	evidence	The precise reason for this lag is unclear, but recapitulating our findings on the role of SusD in malto-oligosaccharide sensing in B. thetaiotaomicron, this extended lag may be due to inefficient import and thus sensing of xyloglucan in the environment in the absence of glycan binding by essential SGBPs.	RESULTS
91	95	SusD	protein	The precise reason for this lag is unclear, but recapitulating our findings on the role of SusD in malto-oligosaccharide sensing in B. thetaiotaomicron, this extended lag may be due to inefficient import and thus sensing of xyloglucan in the environment in the absence of glycan binding by essential SGBPs.	RESULTS
99	120	malto-oligosaccharide	chemical	The precise reason for this lag is unclear, but recapitulating our findings on the role of SusD in malto-oligosaccharide sensing in B. thetaiotaomicron, this extended lag may be due to inefficient import and thus sensing of xyloglucan in the environment in the absence of glycan binding by essential SGBPs.	RESULTS
132	151	B. thetaiotaomicron	species	The precise reason for this lag is unclear, but recapitulating our findings on the role of SusD in malto-oligosaccharide sensing in B. thetaiotaomicron, this extended lag may be due to inefficient import and thus sensing of xyloglucan in the environment in the absence of glycan binding by essential SGBPs.	RESULTS
167	170	lag	evidence	The precise reason for this lag is unclear, but recapitulating our findings on the role of SusD in malto-oligosaccharide sensing in B. thetaiotaomicron, this extended lag may be due to inefficient import and thus sensing of xyloglucan in the environment in the absence of glycan binding by essential SGBPs.	RESULTS
224	234	xyloglucan	chemical	The precise reason for this lag is unclear, but recapitulating our findings on the role of SusD in malto-oligosaccharide sensing in B. thetaiotaomicron, this extended lag may be due to inefficient import and thus sensing of xyloglucan in the environment in the absence of glycan binding by essential SGBPs.	RESULTS
272	278	glycan	chemical	The precise reason for this lag is unclear, but recapitulating our findings on the role of SusD in malto-oligosaccharide sensing in B. thetaiotaomicron, this extended lag may be due to inefficient import and thus sensing of xyloglucan in the environment in the absence of glycan binding by essential SGBPs.	RESULTS
300	305	SGBPs	protein_type	The precise reason for this lag is unclear, but recapitulating our findings on the role of SusD in malto-oligosaccharide sensing in B. thetaiotaomicron, this extended lag may be due to inefficient import and thus sensing of xyloglucan in the environment in the absence of glycan binding by essential SGBPs.	RESULTS
36	45	B. ovatus	species	Our previous work demonstrates that B. ovatus cells grown in minimal medium plus glucose express low levels of the XyGUL transcript.	RESULTS
81	88	glucose	chemical	Our previous work demonstrates that B. ovatus cells grown in minimal medium plus glucose express low levels of the XyGUL transcript.	RESULTS
115	120	XyGUL	gene	Our previous work demonstrates that B. ovatus cells grown in minimal medium plus glucose express low levels of the XyGUL transcript.	RESULTS
74	81	glucose	chemical	Thus, in our experiments, we presume that each strain, initially grown in glucose, expresses low levels of the XyGUL transcript and thus low levels of the XyGUL-encoded surface proteins, including the vanguard GH5.	RESULTS
111	116	XyGUL	gene	Thus, in our experiments, we presume that each strain, initially grown in glucose, expresses low levels of the XyGUL transcript and thus low levels of the XyGUL-encoded surface proteins, including the vanguard GH5.	RESULTS
155	160	XyGUL	gene	Thus, in our experiments, we presume that each strain, initially grown in glucose, expresses low levels of the XyGUL transcript and thus low levels of the XyGUL-encoded surface proteins, including the vanguard GH5.	RESULTS
210	213	GH5	protein	Thus, in our experiments, we presume that each strain, initially grown in glucose, expresses low levels of the XyGUL transcript and thus low levels of the XyGUL-encoded surface proteins, including the vanguard GH5.	RESULTS
19	25	glycan	chemical	Presumably without glycan binding by the SGBPs, the GH5 protein cannot efficiently process xyloglucan, and/or the lack of SGBP function prevents efficient capture and import of the processed oligosaccharides.	RESULTS
41	46	SGBPs	protein_type	Presumably without glycan binding by the SGBPs, the GH5 protein cannot efficiently process xyloglucan, and/or the lack of SGBP function prevents efficient capture and import of the processed oligosaccharides.	RESULTS
52	55	GH5	protein	Presumably without glycan binding by the SGBPs, the GH5 protein cannot efficiently process xyloglucan, and/or the lack of SGBP function prevents efficient capture and import of the processed oligosaccharides.	RESULTS
91	101	xyloglucan	chemical	Presumably without glycan binding by the SGBPs, the GH5 protein cannot efficiently process xyloglucan, and/or the lack of SGBP function prevents efficient capture and import of the processed oligosaccharides.	RESULTS
122	126	SGBP	protein_type	Presumably without glycan binding by the SGBPs, the GH5 protein cannot efficiently process xyloglucan, and/or the lack of SGBP function prevents efficient capture and import of the processed oligosaccharides.	RESULTS
191	207	oligosaccharides	chemical	Presumably without glycan binding by the SGBPs, the GH5 protein cannot efficiently process xyloglucan, and/or the lack of SGBP function prevents efficient capture and import of the processed oligosaccharides.	RESULTS
54	60	glycan	chemical	It may then be that only after a sufficient amount of glycan is processed and imported by the cell is XyGUL upregulated and exponential growth on the glycan can begin.	RESULTS
102	107	XyGUL	gene	It may then be that only after a sufficient amount of glycan is processed and imported by the cell is XyGUL upregulated and exponential growth on the glycan can begin.	RESULTS
150	156	glycan	chemical	It may then be that only after a sufficient amount of glycan is processed and imported by the cell is XyGUL upregulated and exponential growth on the glycan can begin.	RESULTS
68	74	SGBP-A	protein	We hypothesize that during exponential growth the essential role of SGBP-A extends beyond glycan recognition, perhaps due to a critical interaction with the TBDT.	RESULTS
90	96	glycan	chemical	We hypothesize that during exponential growth the essential role of SGBP-A extends beyond glycan recognition, perhaps due to a critical interaction with the TBDT.	RESULTS
157	161	TBDT	protein_type	We hypothesize that during exponential growth the essential role of SGBP-A extends beyond glycan recognition, perhaps due to a critical interaction with the TBDT.	RESULTS
7	12	BtSus	gene	In the BtSus, SusD and the TBDT SusC interact, and we speculate that this interaction is necessary for glycan uptake, as suggested by the fact that a ΔsusD mutant cannot grow on starch, but a ΔsusD::SusD* strain regains this ability if a transcriptional activator of the sus operon is supplied.	RESULTS
14	18	SusD	protein	In the BtSus, SusD and the TBDT SusC interact, and we speculate that this interaction is necessary for glycan uptake, as suggested by the fact that a ΔsusD mutant cannot grow on starch, but a ΔsusD::SusD* strain regains this ability if a transcriptional activator of the sus operon is supplied.	RESULTS
27	31	TBDT	protein_type	In the BtSus, SusD and the TBDT SusC interact, and we speculate that this interaction is necessary for glycan uptake, as suggested by the fact that a ΔsusD mutant cannot grow on starch, but a ΔsusD::SusD* strain regains this ability if a transcriptional activator of the sus operon is supplied.	RESULTS
32	36	SusC	protein	In the BtSus, SusD and the TBDT SusC interact, and we speculate that this interaction is necessary for glycan uptake, as suggested by the fact that a ΔsusD mutant cannot grow on starch, but a ΔsusD::SusD* strain regains this ability if a transcriptional activator of the sus operon is supplied.	RESULTS
103	109	glycan	chemical	In the BtSus, SusD and the TBDT SusC interact, and we speculate that this interaction is necessary for glycan uptake, as suggested by the fact that a ΔsusD mutant cannot grow on starch, but a ΔsusD::SusD* strain regains this ability if a transcriptional activator of the sus operon is supplied.	RESULTS
150	155	ΔsusD	mutant	In the BtSus, SusD and the TBDT SusC interact, and we speculate that this interaction is necessary for glycan uptake, as suggested by the fact that a ΔsusD mutant cannot grow on starch, but a ΔsusD::SusD* strain regains this ability if a transcriptional activator of the sus operon is supplied.	RESULTS
156	162	mutant	protein_state	In the BtSus, SusD and the TBDT SusC interact, and we speculate that this interaction is necessary for glycan uptake, as suggested by the fact that a ΔsusD mutant cannot grow on starch, but a ΔsusD::SusD* strain regains this ability if a transcriptional activator of the sus operon is supplied.	RESULTS
178	184	starch	chemical	In the BtSus, SusD and the TBDT SusC interact, and we speculate that this interaction is necessary for glycan uptake, as suggested by the fact that a ΔsusD mutant cannot grow on starch, but a ΔsusD::SusD* strain regains this ability if a transcriptional activator of the sus operon is supplied.	RESULTS
192	197	ΔsusD	mutant	In the BtSus, SusD and the TBDT SusC interact, and we speculate that this interaction is necessary for glycan uptake, as suggested by the fact that a ΔsusD mutant cannot grow on starch, but a ΔsusD::SusD* strain regains this ability if a transcriptional activator of the sus operon is supplied.	RESULTS
199	204	SusD*	mutant	In the BtSus, SusD and the TBDT SusC interact, and we speculate that this interaction is necessary for glycan uptake, as suggested by the fact that a ΔsusD mutant cannot grow on starch, but a ΔsusD::SusD* strain regains this ability if a transcriptional activator of the sus operon is supplied.	RESULTS
238	263	transcriptional activator	protein_type	In the BtSus, SusD and the TBDT SusC interact, and we speculate that this interaction is necessary for glycan uptake, as suggested by the fact that a ΔsusD mutant cannot grow on starch, but a ΔsusD::SusD* strain regains this ability if a transcriptional activator of the sus operon is supplied.	RESULTS
271	281	sus operon	gene	In the BtSus, SusD and the TBDT SusC interact, and we speculate that this interaction is necessary for glycan uptake, as suggested by the fact that a ΔsusD mutant cannot grow on starch, but a ΔsusD::SusD* strain regains this ability if a transcriptional activator of the sus operon is supplied.	RESULTS
77	83	SGBP-A	protein	Likewise, such cognate interactions between homologous protein pairs such as SGBP-A and its TBDT may underlie our observation that a ΔSGBP-A mutant cannot grow on xyloglucan.	RESULTS
92	96	TBDT	protein_type	Likewise, such cognate interactions between homologous protein pairs such as SGBP-A and its TBDT may underlie our observation that a ΔSGBP-A mutant cannot grow on xyloglucan.	RESULTS
133	140	ΔSGBP-A	mutant	Likewise, such cognate interactions between homologous protein pairs such as SGBP-A and its TBDT may underlie our observation that a ΔSGBP-A mutant cannot grow on xyloglucan.	RESULTS
141	147	mutant	protein_state	Likewise, such cognate interactions between homologous protein pairs such as SGBP-A and its TBDT may underlie our observation that a ΔSGBP-A mutant cannot grow on xyloglucan.	RESULTS
163	173	xyloglucan	chemical	Likewise, such cognate interactions between homologous protein pairs such as SGBP-A and its TBDT may underlie our observation that a ΔSGBP-A mutant cannot grow on xyloglucan.	RESULTS
20	23	Sus	complex_assembly	However, unlike the Sus, in which elimination of SusE and SusF does not affect growth on starch, SGBP-B appears to have a dedicated role in growth on small xylogluco-oligosaccharides.	RESULTS
34	48	elimination of	experimental_method	However, unlike the Sus, in which elimination of SusE and SusF does not affect growth on starch, SGBP-B appears to have a dedicated role in growth on small xylogluco-oligosaccharides.	RESULTS
49	53	SusE	protein	However, unlike the Sus, in which elimination of SusE and SusF does not affect growth on starch, SGBP-B appears to have a dedicated role in growth on small xylogluco-oligosaccharides.	RESULTS
58	62	SusF	protein	However, unlike the Sus, in which elimination of SusE and SusF does not affect growth on starch, SGBP-B appears to have a dedicated role in growth on small xylogluco-oligosaccharides.	RESULTS
89	95	starch	chemical	However, unlike the Sus, in which elimination of SusE and SusF does not affect growth on starch, SGBP-B appears to have a dedicated role in growth on small xylogluco-oligosaccharides.	RESULTS
97	103	SGBP-B	protein	However, unlike the Sus, in which elimination of SusE and SusF does not affect growth on starch, SGBP-B appears to have a dedicated role in growth on small xylogluco-oligosaccharides.	RESULTS
156	182	xylogluco-oligosaccharides	chemical	However, unlike the Sus, in which elimination of SusE and SusF does not affect growth on starch, SGBP-B appears to have a dedicated role in growth on small xylogluco-oligosaccharides.	RESULTS
27	41	microorganisms	taxonomy_domain	The ability of gut-adapted microorganisms to thrive in the gastrointestinal tract is critically dependent upon their ability to efficiently recognize, cleave, and import glycans.	RESULTS
170	177	glycans	chemical	The ability of gut-adapted microorganisms to thrive in the gastrointestinal tract is critically dependent upon their ability to efficiently recognize, cleave, and import glycans.	RESULTS
4	9	human	species	The human gut, in particular, is a densely packed ecosystem with hundreds of species, in which there is potential for both competition and synergy in the utilization of different substrates.	RESULTS
32	45	Bacteroidetes	taxonomy_domain	Recent work has elucidated that Bacteroidetes cross-feed during growth on many glycans; the glycoside hydrolases expressed by one species liberate oligosaccharides for consumption by other members of the community.	RESULTS
79	86	glycans	chemical	Recent work has elucidated that Bacteroidetes cross-feed during growth on many glycans; the glycoside hydrolases expressed by one species liberate oligosaccharides for consumption by other members of the community.	RESULTS
92	112	glycoside hydrolases	protein_type	Recent work has elucidated that Bacteroidetes cross-feed during growth on many glycans; the glycoside hydrolases expressed by one species liberate oligosaccharides for consumption by other members of the community.	RESULTS
147	163	oligosaccharides	chemical	Recent work has elucidated that Bacteroidetes cross-feed during growth on many glycans; the glycoside hydrolases expressed by one species liberate oligosaccharides for consumption by other members of the community.	RESULTS
20	26	glycan	chemical	Thus, understanding glycan capture at the cell surface is fundamental to explaining, and eventually predicting, how the carbohydrate content of the diet shapes the gut community structure as well as its causative health effects.	RESULTS
30	61	surface glycan binding proteins	protein_type	Here, we demonstrate that the surface glycan binding proteins encoded within the BoXyGUL play unique and essential roles in the acquisition of the ubiquitous and abundant vegetable polysaccharide xyloglucan.	RESULTS
81	88	BoXyGUL	gene	Here, we demonstrate that the surface glycan binding proteins encoded within the BoXyGUL play unique and essential roles in the acquisition of the ubiquitous and abundant vegetable polysaccharide xyloglucan.	RESULTS
171	180	vegetable	taxonomy_domain	Here, we demonstrate that the surface glycan binding proteins encoded within the BoXyGUL play unique and essential roles in the acquisition of the ubiquitous and abundant vegetable polysaccharide xyloglucan.	RESULTS
181	195	polysaccharide	chemical	Here, we demonstrate that the surface glycan binding proteins encoded within the BoXyGUL play unique and essential roles in the acquisition of the ubiquitous and abundant vegetable polysaccharide xyloglucan.	RESULTS
196	206	xyloglucan	chemical	Here, we demonstrate that the surface glycan binding proteins encoded within the BoXyGUL play unique and essential roles in the acquisition of the ubiquitous and abundant vegetable polysaccharide xyloglucan.	RESULTS
71	76	SGBPs	protein_type	Yet, a number of questions remain regarding the molecular interplay of SGBPs with their cotranscribed cohort of glycoside hydrolases and TonB-dependent transporters.	RESULTS
112	132	glycoside hydrolases	protein_type	Yet, a number of questions remain regarding the molecular interplay of SGBPs with their cotranscribed cohort of glycoside hydrolases and TonB-dependent transporters.	RESULTS
137	164	TonB-dependent transporters	protein_type	Yet, a number of questions remain regarding the molecular interplay of SGBPs with their cotranscribed cohort of glycoside hydrolases and TonB-dependent transporters.	RESULTS
38	44	glycan	chemical	A particularly understudied aspect of glycan utilization is the mechanism of import via TBDTs (SusC homologs) (Fig. 1), which are ubiquitous and defining components of all PUL.	RESULTS
88	93	TBDTs	protein_type	A particularly understudied aspect of glycan utilization is the mechanism of import via TBDTs (SusC homologs) (Fig. 1), which are ubiquitous and defining components of all PUL.	RESULTS
95	99	SusC	protein	A particularly understudied aspect of glycan utilization is the mechanism of import via TBDTs (SusC homologs) (Fig. 1), which are ubiquitous and defining components of all PUL.	RESULTS
172	175	PUL	gene	A particularly understudied aspect of glycan utilization is the mechanism of import via TBDTs (SusC homologs) (Fig. 1), which are ubiquitous and defining components of all PUL.	RESULTS
0	3	PUL	gene	PUL-encoded TBDTs in Bacteroidetes are larger than the well-characterized iron-targeting TBDTs from many Proteobacteria and are further distinguished as the only known glycan-importing TBDTs coexpressed with an SGBP.	RESULTS
12	17	TBDTs	protein_type	PUL-encoded TBDTs in Bacteroidetes are larger than the well-characterized iron-targeting TBDTs from many Proteobacteria and are further distinguished as the only known glycan-importing TBDTs coexpressed with an SGBP.	RESULTS
21	34	Bacteroidetes	taxonomy_domain	PUL-encoded TBDTs in Bacteroidetes are larger than the well-characterized iron-targeting TBDTs from many Proteobacteria and are further distinguished as the only known glycan-importing TBDTs coexpressed with an SGBP.	RESULTS
74	94	iron-targeting TBDTs	protein_type	PUL-encoded TBDTs in Bacteroidetes are larger than the well-characterized iron-targeting TBDTs from many Proteobacteria and are further distinguished as the only known glycan-importing TBDTs coexpressed with an SGBP.	RESULTS
105	119	Proteobacteria	taxonomy_domain	PUL-encoded TBDTs in Bacteroidetes are larger than the well-characterized iron-targeting TBDTs from many Proteobacteria and are further distinguished as the only known glycan-importing TBDTs coexpressed with an SGBP.	RESULTS
168	190	glycan-importing TBDTs	protein_type	PUL-encoded TBDTs in Bacteroidetes are larger than the well-characterized iron-targeting TBDTs from many Proteobacteria and are further distinguished as the only known glycan-importing TBDTs coexpressed with an SGBP.	RESULTS
211	215	SGBP	protein_type	PUL-encoded TBDTs in Bacteroidetes are larger than the well-characterized iron-targeting TBDTs from many Proteobacteria and are further distinguished as the only known glycan-importing TBDTs coexpressed with an SGBP.	RESULTS
33	39	BtSusC	protein	A direct interaction between the BtSusC TBDT and the SusD SGBP has been previously demonstrated, as has an interaction between the homologous components encoded by an N-glycan-scavenging PUL of Capnocytophaga canimorsus.	RESULTS
40	44	TBDT	protein_type	A direct interaction between the BtSusC TBDT and the SusD SGBP has been previously demonstrated, as has an interaction between the homologous components encoded by an N-glycan-scavenging PUL of Capnocytophaga canimorsus.	RESULTS
53	57	SusD	protein	A direct interaction between the BtSusC TBDT and the SusD SGBP has been previously demonstrated, as has an interaction between the homologous components encoded by an N-glycan-scavenging PUL of Capnocytophaga canimorsus.	RESULTS
58	62	SGBP	protein_type	A direct interaction between the BtSusC TBDT and the SusD SGBP has been previously demonstrated, as has an interaction between the homologous components encoded by an N-glycan-scavenging PUL of Capnocytophaga canimorsus.	RESULTS
169	175	glycan	chemical	A direct interaction between the BtSusC TBDT and the SusD SGBP has been previously demonstrated, as has an interaction between the homologous components encoded by an N-glycan-scavenging PUL of Capnocytophaga canimorsus.	RESULTS
187	190	PUL	gene	A direct interaction between the BtSusC TBDT and the SusD SGBP has been previously demonstrated, as has an interaction between the homologous components encoded by an N-glycan-scavenging PUL of Capnocytophaga canimorsus.	RESULTS
194	219	Capnocytophaga canimorsus	species	A direct interaction between the BtSusC TBDT and the SusD SGBP has been previously demonstrated, as has an interaction between the homologous components encoded by an N-glycan-scavenging PUL of Capnocytophaga canimorsus.	RESULTS
55	59	SusD	protein	Our observation here that the physical presence of the SusD homolog SGBP-A, independent of XyG-binding ability, is both necessary and sufficient for XyG utilization further supports a model of glycan import whereby the SusC-like TBDTs and the SusD-like SGBPs must be intimately associated to support glycan uptake (Fig. 1C).	RESULTS
68	74	SGBP-A	protein	Our observation here that the physical presence of the SusD homolog SGBP-A, independent of XyG-binding ability, is both necessary and sufficient for XyG utilization further supports a model of glycan import whereby the SusC-like TBDTs and the SusD-like SGBPs must be intimately associated to support glycan uptake (Fig. 1C).	RESULTS
91	94	XyG	chemical	Our observation here that the physical presence of the SusD homolog SGBP-A, independent of XyG-binding ability, is both necessary and sufficient for XyG utilization further supports a model of glycan import whereby the SusC-like TBDTs and the SusD-like SGBPs must be intimately associated to support glycan uptake (Fig. 1C).	RESULTS
149	152	XyG	chemical	Our observation here that the physical presence of the SusD homolog SGBP-A, independent of XyG-binding ability, is both necessary and sufficient for XyG utilization further supports a model of glycan import whereby the SusC-like TBDTs and the SusD-like SGBPs must be intimately associated to support glycan uptake (Fig. 1C).	RESULTS
193	199	glycan	chemical	Our observation here that the physical presence of the SusD homolog SGBP-A, independent of XyG-binding ability, is both necessary and sufficient for XyG utilization further supports a model of glycan import whereby the SusC-like TBDTs and the SusD-like SGBPs must be intimately associated to support glycan uptake (Fig. 1C).	RESULTS
219	234	SusC-like TBDTs	protein_type	Our observation here that the physical presence of the SusD homolog SGBP-A, independent of XyG-binding ability, is both necessary and sufficient for XyG utilization further supports a model of glycan import whereby the SusC-like TBDTs and the SusD-like SGBPs must be intimately associated to support glycan uptake (Fig. 1C).	RESULTS
243	258	SusD-like SGBPs	protein_type	Our observation here that the physical presence of the SusD homolog SGBP-A, independent of XyG-binding ability, is both necessary and sufficient for XyG utilization further supports a model of glycan import whereby the SusC-like TBDTs and the SusD-like SGBPs must be intimately associated to support glycan uptake (Fig. 1C).	RESULTS
300	306	glycan	chemical	Our observation here that the physical presence of the SusD homolog SGBP-A, independent of XyG-binding ability, is both necessary and sufficient for XyG utilization further supports a model of glycan import whereby the SusC-like TBDTs and the SusD-like SGBPs must be intimately associated to support glycan uptake (Fig. 1C).	RESULTS
120	124	TBDT	protein_type	It is yet presently unclear whether this interaction is static or dynamic and to what extent the association of cognate TBDT/SGBPs is dependent upon the structure of the carbohydrate to be imported.	RESULTS
125	130	SGBPs	protein_type	It is yet presently unclear whether this interaction is static or dynamic and to what extent the association of cognate TBDT/SGBPs is dependent upon the structure of the carbohydrate to be imported.	RESULTS
170	182	carbohydrate	chemical	It is yet presently unclear whether this interaction is static or dynamic and to what extent the association of cognate TBDT/SGBPs is dependent upon the structure of the carbohydrate to be imported.	RESULTS
59	64	TBDTs	protein_type	On the other hand, there is clear evidence for independent TBDTs in Bacteroidetes that do not require SGBP association for activity.	RESULTS
68	81	Bacteroidetes	taxonomy_domain	On the other hand, there is clear evidence for independent TBDTs in Bacteroidetes that do not require SGBP association for activity.	RESULTS
102	106	SGBP	protein_type	On the other hand, there is clear evidence for independent TBDTs in Bacteroidetes that do not require SGBP association for activity.	RESULTS
61	65	nanO	gene	For example, it was recently demonstrated that expression of nanO, which encodes a SusC-like TBDT as part of a sialic-acid-targeting PUL from B. fragilis, restored growth on this monosaccharide in a mutant strain of E. coli.	RESULTS
83	97	SusC-like TBDT	protein_type	For example, it was recently demonstrated that expression of nanO, which encodes a SusC-like TBDT as part of a sialic-acid-targeting PUL from B. fragilis, restored growth on this monosaccharide in a mutant strain of E. coli.	RESULTS
133	136	PUL	gene	For example, it was recently demonstrated that expression of nanO, which encodes a SusC-like TBDT as part of a sialic-acid-targeting PUL from B. fragilis, restored growth on this monosaccharide in a mutant strain of E. coli.	RESULTS
142	153	B. fragilis	species	For example, it was recently demonstrated that expression of nanO, which encodes a SusC-like TBDT as part of a sialic-acid-targeting PUL from B. fragilis, restored growth on this monosaccharide in a mutant strain of E. coli.	RESULTS
179	193	monosaccharide	chemical	For example, it was recently demonstrated that expression of nanO, which encodes a SusC-like TBDT as part of a sialic-acid-targeting PUL from B. fragilis, restored growth on this monosaccharide in a mutant strain of E. coli.	RESULTS
216	223	E. coli	species	For example, it was recently demonstrated that expression of nanO, which encodes a SusC-like TBDT as part of a sialic-acid-targeting PUL from B. fragilis, restored growth on this monosaccharide in a mutant strain of E. coli.	RESULTS
38	42	susD	gene	In this instance, coexpression of the susD-like gene nanU was not required, nor did the expression of the nanU gene enhance growth kinetics.	RESULTS
53	57	nanU	gene	In this instance, coexpression of the susD-like gene nanU was not required, nor did the expression of the nanU gene enhance growth kinetics.	RESULTS
106	110	nanU	gene	In this instance, coexpression of the susD-like gene nanU was not required, nor did the expression of the nanU gene enhance growth kinetics.	RESULTS
27	33	BT1762	gene	Similarly, the deletion of BT1762 encoding a fructan-targeting SusD-like protein in B. thetaiotaomicron did not result in a dramatic loss of growth on fructans.	RESULTS
45	80	fructan-targeting SusD-like protein	protein_type	Similarly, the deletion of BT1762 encoding a fructan-targeting SusD-like protein in B. thetaiotaomicron did not result in a dramatic loss of growth on fructans.	RESULTS
84	103	B. thetaiotaomicron	species	Similarly, the deletion of BT1762 encoding a fructan-targeting SusD-like protein in B. thetaiotaomicron did not result in a dramatic loss of growth on fructans.	RESULTS
151	159	fructans	chemical	Similarly, the deletion of BT1762 encoding a fructan-targeting SusD-like protein in B. thetaiotaomicron did not result in a dramatic loss of growth on fructans.	RESULTS
33	47	SusD-like SGBP	protein_type	Thus, the strict dependence on a SusD-like SGBP for glycan uptake in the Bacteroidetes may be variable and substrate dependent.	RESULTS
52	58	glycan	chemical	Thus, the strict dependence on a SusD-like SGBP for glycan uptake in the Bacteroidetes may be variable and substrate dependent.	RESULTS
73	86	Bacteroidetes	taxonomy_domain	Thus, the strict dependence on a SusD-like SGBP for glycan uptake in the Bacteroidetes may be variable and substrate dependent.	RESULTS
53	58	TBDTs	protein_type	Furthermore, considering the broader distribution of TBDTs in PUL lacking SGBPs (sometimes known as carbohydrate utilization containing TBDT [CUT] loci; see reference and reviewed in reference) across bacterial phyla, it appears that the intimate biophysical association of these substrate-transport and -binding proteins is the result of specific evolution within the Bacteroidetes.	RESULTS
62	65	PUL	gene	Furthermore, considering the broader distribution of TBDTs in PUL lacking SGBPs (sometimes known as carbohydrate utilization containing TBDT [CUT] loci; see reference and reviewed in reference) across bacterial phyla, it appears that the intimate biophysical association of these substrate-transport and -binding proteins is the result of specific evolution within the Bacteroidetes.	RESULTS
74	79	SGBPs	protein_type	Furthermore, considering the broader distribution of TBDTs in PUL lacking SGBPs (sometimes known as carbohydrate utilization containing TBDT [CUT] loci; see reference and reviewed in reference) across bacterial phyla, it appears that the intimate biophysical association of these substrate-transport and -binding proteins is the result of specific evolution within the Bacteroidetes.	RESULTS
100	151	carbohydrate utilization containing TBDT [CUT] loci	gene	Furthermore, considering the broader distribution of TBDTs in PUL lacking SGBPs (sometimes known as carbohydrate utilization containing TBDT [CUT] loci; see reference and reviewed in reference) across bacterial phyla, it appears that the intimate biophysical association of these substrate-transport and -binding proteins is the result of specific evolution within the Bacteroidetes.	RESULTS
201	210	bacterial	taxonomy_domain	Furthermore, considering the broader distribution of TBDTs in PUL lacking SGBPs (sometimes known as carbohydrate utilization containing TBDT [CUT] loci; see reference and reviewed in reference) across bacterial phyla, it appears that the intimate biophysical association of these substrate-transport and -binding proteins is the result of specific evolution within the Bacteroidetes.	RESULTS
369	382	Bacteroidetes	taxonomy_domain	Furthermore, considering the broader distribution of TBDTs in PUL lacking SGBPs (sometimes known as carbohydrate utilization containing TBDT [CUT] loci; see reference and reviewed in reference) across bacterial phyla, it appears that the intimate biophysical association of these substrate-transport and -binding proteins is the result of specific evolution within the Bacteroidetes.	RESULTS
49	67	SusD-like proteins	protein_type	Equally intriguing is the observation that while SusD-like proteins such as SGBP-A share moderate primary and high tertiary structural conservation, the genes for the SGBPs encoded immediately downstream (Fig. 1B [sometimes referred to as “susE positioned”]) encode glycan-binding lipoproteins with little or no sequence or structural conservation, even among syntenic PUL that target the same polysaccharide.	RESULTS
76	82	SGBP-A	protein	Equally intriguing is the observation that while SusD-like proteins such as SGBP-A share moderate primary and high tertiary structural conservation, the genes for the SGBPs encoded immediately downstream (Fig. 1B [sometimes referred to as “susE positioned”]) encode glycan-binding lipoproteins with little or no sequence or structural conservation, even among syntenic PUL that target the same polysaccharide.	RESULTS
167	172	SGBPs	protein_type	Equally intriguing is the observation that while SusD-like proteins such as SGBP-A share moderate primary and high tertiary structural conservation, the genes for the SGBPs encoded immediately downstream (Fig. 1B [sometimes referred to as “susE positioned”]) encode glycan-binding lipoproteins with little or no sequence or structural conservation, even among syntenic PUL that target the same polysaccharide.	RESULTS
266	293	glycan-binding lipoproteins	protein_type	Equally intriguing is the observation that while SusD-like proteins such as SGBP-A share moderate primary and high tertiary structural conservation, the genes for the SGBPs encoded immediately downstream (Fig. 1B [sometimes referred to as “susE positioned”]) encode glycan-binding lipoproteins with little or no sequence or structural conservation, even among syntenic PUL that target the same polysaccharide.	RESULTS
369	372	PUL	gene	Equally intriguing is the observation that while SusD-like proteins such as SGBP-A share moderate primary and high tertiary structural conservation, the genes for the SGBPs encoded immediately downstream (Fig. 1B [sometimes referred to as “susE positioned”]) encode glycan-binding lipoproteins with little or no sequence or structural conservation, even among syntenic PUL that target the same polysaccharide.	RESULTS
394	408	polysaccharide	chemical	Equally intriguing is the observation that while SusD-like proteins such as SGBP-A share moderate primary and high tertiary structural conservation, the genes for the SGBPs encoded immediately downstream (Fig. 1B [sometimes referred to as “susE positioned”]) encode glycan-binding lipoproteins with little or no sequence or structural conservation, even among syntenic PUL that target the same polysaccharide.	RESULTS
21	26	XyGUL	gene	Such is the case for XyGUL from related Bacteroides species, which may encode either one or two of these predicted SGBPs, and these proteins vary considerably in length.	RESULTS
40	51	Bacteroides	taxonomy_domain	Such is the case for XyGUL from related Bacteroides species, which may encode either one or two of these predicted SGBPs, and these proteins vary considerably in length.	RESULTS
115	120	SGBPs	protein_type	Such is the case for XyGUL from related Bacteroides species, which may encode either one or two of these predicted SGBPs, and these proteins vary considerably in length.	RESULTS
38	43	SGBPs	protein_type	The extremely low similarity of these SGBPs is striking in light of the moderate sequence conservation observed among homologous GHs in syntenic PUL.	RESULTS
129	132	GHs	protein_type	The extremely low similarity of these SGBPs is striking in light of the moderate sequence conservation observed among homologous GHs in syntenic PUL.	RESULTS
145	148	PUL	gene	The extremely low similarity of these SGBPs is striking in light of the moderate sequence conservation observed among homologous GHs in syntenic PUL.	RESULTS
47	52	SGBPs	protein_type	This, together with the observation that these SGBPs, as exemplified by BtSusE and BtSusF and the XyGUL SGBP-B of the present study, are expendable for polysaccharide growth, implies a high degree of evolutionary flexibility to enhance glycan capture at the cell surface.	RESULTS
72	78	BtSusE	protein	This, together with the observation that these SGBPs, as exemplified by BtSusE and BtSusF and the XyGUL SGBP-B of the present study, are expendable for polysaccharide growth, implies a high degree of evolutionary flexibility to enhance glycan capture at the cell surface.	RESULTS
83	89	BtSusF	protein	This, together with the observation that these SGBPs, as exemplified by BtSusE and BtSusF and the XyGUL SGBP-B of the present study, are expendable for polysaccharide growth, implies a high degree of evolutionary flexibility to enhance glycan capture at the cell surface.	RESULTS
98	103	XyGUL	gene	This, together with the observation that these SGBPs, as exemplified by BtSusE and BtSusF and the XyGUL SGBP-B of the present study, are expendable for polysaccharide growth, implies a high degree of evolutionary flexibility to enhance glycan capture at the cell surface.	RESULTS
104	110	SGBP-B	protein	This, together with the observation that these SGBPs, as exemplified by BtSusE and BtSusF and the XyGUL SGBP-B of the present study, are expendable for polysaccharide growth, implies a high degree of evolutionary flexibility to enhance glycan capture at the cell surface.	RESULTS
152	166	polysaccharide	chemical	This, together with the observation that these SGBPs, as exemplified by BtSusE and BtSusF and the XyGUL SGBP-B of the present study, are expendable for polysaccharide growth, implies a high degree of evolutionary flexibility to enhance glycan capture at the cell surface.	RESULTS
236	242	glycan	chemical	This, together with the observation that these SGBPs, as exemplified by BtSusE and BtSusF and the XyGUL SGBP-B of the present study, are expendable for polysaccharide growth, implies a high degree of evolutionary flexibility to enhance glycan capture at the cell surface.	RESULTS
58	66	bacteria	taxonomy_domain	Because the intestinal ecosystem is a dense consortium of bacteria that must compete for their nutrients, these multimodular SGBPs may reflect ongoing evolutionary experiments to enhance glycan uptake efficiency.	RESULTS
125	130	SGBPs	protein_type	Because the intestinal ecosystem is a dense consortium of bacteria that must compete for their nutrients, these multimodular SGBPs may reflect ongoing evolutionary experiments to enhance glycan uptake efficiency.	RESULTS
187	193	glycan	chemical	Because the intestinal ecosystem is a dense consortium of bacteria that must compete for their nutrients, these multimodular SGBPs may reflect ongoing evolutionary experiments to enhance glycan uptake efficiency.	RESULTS
38	43	SGBPs	protein_type	Whether organisms that express longer SGBPs, extending further above the cell surface toward the extracellular environment, are better equipped to compete for available carbohydrates is presently unknown.	RESULTS
169	182	carbohydrates	chemical	Whether organisms that express longer SGBPs, extending further above the cell surface toward the extracellular environment, are better equipped to compete for available carbohydrates is presently unknown.	RESULTS
102	129	carbohydrate-binding motifs	structure_element	However, the natural diversity of these proteins represents a rich source for the discovery of unique carbohydrate-binding motifs to both inform gut microbiology and generate new, specific carbohydrate analytical reagents.	RESULTS
189	201	carbohydrate	chemical	However, the natural diversity of these proteins represents a rich source for the discovery of unique carbohydrate-binding motifs to both inform gut microbiology and generate new, specific carbohydrate analytical reagents.	RESULTS
77	108	surface-glycan binding proteins	protein_type	In conclusion, the present study further illuminates the essential role that surface-glycan binding proteins play in facilitating the catabolism of complex dietary carbohydrates by Bacteroidetes.	RESULTS
164	177	carbohydrates	chemical	In conclusion, the present study further illuminates the essential role that surface-glycan binding proteins play in facilitating the catabolism of complex dietary carbohydrates by Bacteroidetes.	RESULTS
181	194	Bacteroidetes	taxonomy_domain	In conclusion, the present study further illuminates the essential role that surface-glycan binding proteins play in facilitating the catabolism of complex dietary carbohydrates by Bacteroidetes.	RESULTS
32	40	bacteria	taxonomy_domain	The ability of our resident gut bacteria to recognize polysaccharides is the first committed step of glycan consumption by these organisms, a critical process that influences the community structure and thus the metabolic output (i.e., short-chain fatty acid and metabolite profile) of these organisms.	RESULTS
54	69	polysaccharides	chemical	The ability of our resident gut bacteria to recognize polysaccharides is the first committed step of glycan consumption by these organisms, a critical process that influences the community structure and thus the metabolic output (i.e., short-chain fatty acid and metabolite profile) of these organisms.	RESULTS
101	107	glycan	chemical	The ability of our resident gut bacteria to recognize polysaccharides is the first committed step of glycan consumption by these organisms, a critical process that influences the community structure and thus the metabolic output (i.e., short-chain fatty acid and metabolite profile) of these organisms.	RESULTS
29	35	glycan	chemical	A molecular understanding of glycan uptake by human gut bacteria is therefore central to the development of strategies to improve human health through manipulation of the microbiota.	RESULTS
46	51	human	species	A molecular understanding of glycan uptake by human gut bacteria is therefore central to the development of strategies to improve human health through manipulation of the microbiota.	RESULTS
56	64	bacteria	taxonomy_domain	A molecular understanding of glycan uptake by human gut bacteria is therefore central to the development of strategies to improve human health through manipulation of the microbiota.	RESULTS
130	135	human	species	A molecular understanding of glycan uptake by human gut bacteria is therefore central to the development of strategies to improve human health through manipulation of the microbiota.	RESULTS
171	181	microbiota	taxonomy_domain	A molecular understanding of glycan uptake by human gut bacteria is therefore central to the development of strategies to improve human health through manipulation of the microbiota.	RESULTS