EMBO/sd-character-level-ner huggingface dataset:
Figure 5A. Schematic view of the mutants generated to evaluate the functional role of the C575 intra-subunit bonds. HEK293T cells expressing λ chains were transfected with µHaloC575A-C414A (HC575A, depicted in red in the figure), µC414A (µ, in blue) or both mutants together. B. To selectively label intracellular HC575A, cells were treated with 1 nM Halo-tag TMR Direct Ligand for 24 hours. The left panel shows aliquots of the lysates of the indicated transfectants, resolved under non-reducing conditions and decorated with anti-λ antibodies. In the two right panels, samples were precipitated with NP-Sepharose and electrophoresed under non reducing conditions. The signal for the Halo-tag TMR was checked directly in the gel. The arrows point at the various assemblies between µ, HC575A and λ chains. C. The experiment shown aims to determine whether ERp44 can bind also to a single C575, or rather to non-native bonds. Aliquots of the lysates from the indicated ERp44KO transfectants were precipitated with NP-Sepharose, resolved under non reducing conditions and the blot decorated with anti-λ antibodies or anti-ERp44 as indicated. Black asterisks point to covalent complexes of Halo-ERp44 with µs2L2.
Green 1 is Well-Tolerated in Mice.Figure 6Following acclimatization, CD-1 nu/nu mice were separated into two groups, one group was injected subcutaneously in the right and left hind flanks with Me2SO in PBS (10 µL in 200 µL PBS), while the second group received subcutaneous injections of Green 1 (10 mg/kg/day for a total volume of 10 µL Green 1/200 µL PBS) three times a week for a period of one month. (A) Mice weights were recorded twice a week for the duration of the study. (B) Following the study, mice were sacrificed and their organs were obtained for histopathological assessment. Hematoxylin and Eosin staining was carried out on the tissue samples.
Figure 3A. Detection of FadA in subgingival plaque samples by IHC. Three patients with periodontitis are shown here who provided plaque samples from their healthy sites (probing depth ≤ 3 mm, left panels) as well as periodontal diseased sites (probing depth ≥ 7 mm, middle panels). IHC was performed as described using mAb 7H7 at 1:800 dilution. Anti-mouse IgG isotype control of the diseased site is shown (right panels). The images were taken using 100X objective. Scale bar equals 50 μm. B. Double immunofluorescence staining of paired normal and carcinoma tissues from two CRC patients. The frozen tissue sections were incubated with mAb 7H7 at 1:50 dilution and anti-amyloid antibody A11 at 1:25 dilution, or mouse and rabbit IgG control, followed by incubation with Alexa Fluor 555-conjugated goat anti-mouse and Alexa Fluor 680-conjugated donkey anti-rabbit, both at 1:1000 dilution. Co-staining of FadA (red) and amyloid oligomers (green) was observed in the carcinoma but not normal tissues. The images were taken under 60X objective. Scale bar equals 10 μm.
Figure 6(A) Assay of cMyc mRNA by RT-PCR in wild-type ES cells at day 1 to 3 of differentiation. Average and SD of three independent experiments. (B) Immunoblot for total cMyc and phospho Ser62 (pSer62) cMyc during the first 3 days of differentiation in the absence (-) or presence (+) of 3 µM CH. C,D) Immunoblot for the destabilized form of cMyc protein (pThr58) during the first 3 days of differentiation in the absence (-) or presence (+) of 3 µM CH in wild-type and Ctnnb1 null cells respectively. C,D) Immunoblot for the destabilized form of cMyc protein (pThr58) during the first 3 days of differentiation in the absence (-) or presence (+) of 3 µM CH in wild-type and Ctnnb1 null cells respectively. (E) Assay of Tcf7l1 mRNA by RT-PCR in wild-type cells at day 2 of differentiation in the presence or absence of a small molecule inhibitor of cMyc (cMyc Inhibitor II; Myci). Treatment with Myc inhibitor 10058-F4 (Sigma) generated similar results (data not shown). Average and SD of three independent experiments. **p=0.0002. (F) Assay of Tcf7l1 and FoxA2 mRNA by RT-PCR in cMyc null/nMyc heterozygous cells (C-/-;N+/-) and floxed parental cells (cMycfl/fl;nMycfl/fl (control)) at day 3 of differentiation in the presence or absence of 3 µM CH. Average and SD of four or six independent experiments. Tcf7l1 *p=0.01, FoxA2 *p=0.034. (G) FoxA2 immunostaining of control and cMyc null/nMyc heterozygous (cMyc-/-;nMyc+/-) cells at day 3 of differentiation in the presence of 3 µM CH. (H) Assay of cMyc and Tcf7l1 mRNA by RT-PCR in cMycT58A inducible cell lines (icMycT58A) 24 hr after DOX treatment. Average of 2 independent experiments. (I) Assay of Tcf7l1 mRNA by RT-PCR in icMycT58A clone 1 cell line at day 3 of differentiation in the absence of 3 µM CH following cMyc induction with 10 ng/ml DOX. Average and SD of 3 independent experiments. **p=0.007. (J) Immunoblot for cMyc and Tcf7l1 in icMycT58A clonal cell line 1 48 hr after DOX induction at 10ng/ml.
Fig.Figure 4A Experimental scheme for birthdating of adult-born neurons and recombination. For morphology analysis, CAG-RFP was stereotactically injected into the DG (C-F), for marker expression analysis, BrdU was injected i.p. every 24 hours for three days (B). Tamoxifen was applied i.p. every 12 hours for five days from day 10 to day 14. Mice were sacrificed 3 days post Tamoxifen (dpT) and 13dpT, which corresponds to 17dpi and 27dpi, respectively. B Expression of DCX and Calbindin in BrdU+ neurons was comparable between experimental groups at 3dpT and 13dpT (control: n= 5 animals, β-catex3 iDCX: n= 5 animals). C Representative reconstructions of control and β-catex3 iDCX neurons expressing RFP at 3dpT. Scale bar= 20µm. D Quantification of dendritic length [p=0.0003], branch points [p=0.0433], and Sholl analysis [p<0.0001] showed a higher dendritic complexity of β-catex3 iDCX neurons at 3dpT (control: n= 22 cells from 4 animals, β-catex3 iDCX: n= 19 cells from 5 animals). E Representative reconstructions of control and β-catex3 iDCX neurons expressing RFP at 13dpT. Scale bar= 20µm. F Quantification of dendritic length [p<0.0001], and branch points [p=0.0495], and Sholl analysis [p<0.0001] showed a lower dendritic complexity of β-catex3 iDCX neurons at 13dpT (control: n= 20 cells from 4 animals, β-catex3 iDCX: n= 19 cells from 5 animals).
Meth and Clq Inhibit Phagocytosis in Mouse Peritoneal Macrophages.Figure 4(A) Cells were incubated in indicated concentrations of Meth or Clq for 2 h, and then IgG coated erythrocytes were added. Extracellular uningested EIgG were lysed and removed. Phagocytic index (PI) was quantified and inhibition is indicated as percent of control. Data were collected from four to seven experiments (n = 300 cells, mean ± SEM, ***p < 0.0001, two-tailed ANOVA). (B) Images of macrophage cells impaired in the phagocytosis of opsinized sheep erythrocytes after 2 h of Meth or Clq treatment. Arrows denote phagocytosed erythrocytes. Scale bar, 10 μm. (C, D) J774.16 cells were exposed to PBS, chloroquine, or methamphetamine for 2 h followed by incubation with Cn or Ca. The phagocytic indices (ratio of intracellular yeast to the number of macrophages counted) were determined after 1 h or 30 min for Cn and Ca, respectively (C). (Statistics n = 300, mean ± SEM, *p < 0.05, two-tailed ANOVA.) CFU determinations were preformed after 24 h incubations (D). The values are the mean and standard deviation from determinations made in triplicate wells (n = 300 cells, mean ± SEM, *p < 0.05, two-tailed ANOVA.). Experiments were repeated three times with similar results.
Fig.Figure 5(A) Epifluorescence microscopy analysis examining the subcellular localization of de novo made UapA-GFP, after 6-8 hours of initiation of transcription in strains where the expression of RabE, AP-1σ or ClaH (thiAp-rabE, thiAp-ap1σ or thiAp-claH) has been repressed ab initio (o/n) by addition of thiamine. Notice that when rabE or ap1σ is repressed UapA-GFP still reaches the PM. In contrast, repression of claH abolishes labeling of the PM and leads to the cytosolic puncta and a membranous network. Scale bars: 5 μm. Quantification: UapA-GFP PM/cytosolic intensity ratios are plotted on the right. Mean ratios for wild-type, thiAp-rabE, thiAp-ap1σ and thiAp-claH are 0.55±0.02, 0.53±0.03, 0.54±0.02 and 0.29±0.02 respectively. For the statistical analysis, Tukey's Multiple Comparison test was performed (One-way ANOVA). After 6-8h of transcriptional derepression, UapA-GFP fluorescence to the PM does not change when rabE or ap1σ are repressed. On the other hand, in the absence of ClaH, UapA does not reach the PM, as its fluorescence intensity there is statistically lower (****P<0.0001) in comparison to that of the wild-type strain. Biological/technical replicates: 2/15 for each strain. (B) In a similar experiment, the apical polarized localization of de novo made SynA, used as a control of conventional secretion, is shown to be abolished in all three strains where RabE, AP-1σ or ClaH are repressed. Scale bars: 5 μm. mCherry-SynA PM/cytosolic intensity ratios are plotted with values being 0.52±0.02 for wild-type, 0.14±0.02 for thiAp-rabE, 0.24±0.02 for thiAp-ap1σ and 0.16±0.02 for thiAp-claH. The statistical evaluation was performed as in (A). There is a significant difference (****P<0.0001) of mCherry-SynA fluorescence in the apical PM membrane between the wild-type and the three strains lacking the post-Golgi proteins. Biological/technical replicates: 2/15 for each strain. (C) Co-localization analysis and relevant quantification of strains co-expressing de novo made UapA-GFP (120 min after initiation of transcription) with RabE-mRFP, AP-1-mRFP or ClaH-mRFP. Scale bars: 2 μm. Quantification by calculating Pearson's Correlation Coefficient (PCC) shows clear non-colocalization of UapA with all the Post-Golgi markers tested, as confirmed by one sample t-test (PCC=0.31±0.08, 0.29±0.04 or 0.07±0.01, with ****P<0.0001, for RabE, AP-1 or ClaH, respectively). Biological/technical replicates: 3/7 for each strain.
The cGTPase and its interface.Figure 4(A) The ELM2/cGTPase interface can be divided into three regions (insets 1-3). Select residues are shown as sticks, polar contacts as dashed lines, and Mg2+ and MgGDP as spheres. Region 1: αC2 and the hEF2 loop form both backbone and side‐chain contacts with αG1 and Switch I in the cGTPase, including the Switch I threonine T481. Region 2: αD2 in hEF2 packs against the twisting cGTPase β‐strands Gβ1‐3. Region 3: the candidate Pink1 phosphorylation site residue S324 in Lnk1 hydrogen bonds with R444 in Lnk2, which also forms a salt bridge with D521, at the end of the Switch II loop. (B) cGTPase rearrangements in MgGDP binding. Displayed is the MiroS‐MgGDP structure, with select residues from the aligned apo‐MiroS structure shown in orange. GDP is shown as sticks (2Fo‐Fc map, 1.2σ), and Mg2+ as a purple sphere. In the apo state, D505 in the Switch II 503DIDV506 motif is far from the nucleotide‐binding pocket and is hydrogen bonded to R507, which is also stabilized by interactions with P512. In the MgGDP‐bound state, the D505 side‐chain rotates ∼7 Å to interact with the β‐phosphate (arrow), locking the Switch II loop in a β‐strand conformation and extending Gβ3. V506 rotates away from the nucleotide‐binding pocket, and both R507 and Y537 become solvent exposed. cGTPase, C‐terminal GTPase; Sw I/II, Switch I/II; P loop, phosphate‐binding loop.
Figure 6Under normal conditions (such as in rich media), the protein kinase SiaB dominates and maintains most SiaC phosphorylated, which failed to bind to SiaD or induce the DGC activity of SiaD; therefore, c-di-GMP is insufficient to activate the biofilm and aggregate formation. Once under stress conditions (such as SDS stimulation), SiaA phosphatase is activated and most SiaC stays unphosphorylated; in this situation, the unphosphorylated SiaC promotes the DGC activity of SiaD and produces sufficient c-di-GMP, which leads to aggregate and biofilm formation.
Figure 9A, Representative pictures of Ki67 staining in the human endometria obtained from women at the time of embryo implantation. Samples were divided into two groups according to the outcome of clinical pregnancy following endometrial biopsy. Scale bar = 100μm; le, luminal epithelium; s, stroma. B, Ratio of Ki67-positive cells in the human uterine luminal epithelium during the implantation period was lower in the group with pregnancy than the group without pregnancy (mean ± SEM, Student's t test; n=10 different individuals for each group). Three different high-powered fields per sample were analyzed and each of the Ki67-posivie ratios was demonstrated. C, Potential processes that contribute to embryo invasion through uterine RB-induced CCA and necroptosis of luminal epithelial cells.
Figure 1A. Schematic representation of an IgM hexamer. Six µs2L2 'monomeric' subunits are arranged in planar polymers stabilized by inter-subunit disulfide bonds via C414 in the Cμ3 and C575 in the μstp (yellow lines). B. Schematic representation of an IgM 'monomer'. C337 links two μ chains within a µs2L2 subunit. The conserved high mannose N-glycans which become inaccessible to Golgi enzymes in polymers are depicted as blue squares, whilst the hydrophobic stretch is in red. The aminoacidic sequence of the murine μstp is shown in the lower panel. C575 is highlighted in purple and the hydrophobic residue L566 in red. C. Aliquots of the supernatants of the indicated HEK293T transfectants (all expressing λ chains) were resolved under non-reducing conditions and blotted with anti-µ antibodies. Wild type µs chains are secreted only as pentamers and hexamers, whilst mutants lacking C575 release mostly µs2L2 subunits (indicated with a red arrow) as does the double C414A-C575A. L566A releases instead mainly µs2L2 subunits of faster migration (blue arrow). C414 mutants release no hexamers, but smaller assemblies, including fast migrating µs2L2 subunits. D. Schematic view of the organization of µ2L2 subunits secreted by L566A and C575A mutants. For simplicity, only the tailpieces and the last constant domain (Cµ4) are shown. The L566A mutant has a disulfide bond that links two C575 in the same subunit. The open conformation of the tailpieces in C575A likely causes its slow electrophoretic mobility. The N563-glycans are processed in both mutants E. Aliquots of the supernatants were treated with or without Endo-H and electrophoresed under reducing conditions. The blot was decorated with anti-µ antibodies. N563-glycans acquire Endo-H resistance in µsL566A and µsC575A, but remain largely sensitive in wild type µs.
Figure 7Immunoprecipitation of FLAG-SMC6 and FLAG-NSMCE2 with FANCI in HEK293T cells overexpressing the SMC6 or NSMCE2, respectively, in the presence or absence of Ethidium bromide (EtBr). The experiment was performed 3 times, and the blot shows a representative experiment. The band under the one indicated as FANCI may represent a degradation product. Co-immunoprecipitation of endogenous SMC5-mAID-EGFP and FANCD2 in TK6 cells in the presence of benzonase. Both experiments were performed twice independently, with the note that the cisplatin condition was performed only in one of the experiments, and the FANCD2 pull down in the experiment not shown was performed without benzonase. Model schematizing the proposed view of SMC5/6 action in genome integrity and DNA repair. SMC5/6 acts differently from non-homologous end joining and downstream of RAD51 filament formation and of homologous recombination branches mediated by DDX11, RAD17 and FANCD2, RAD17.
Figure 8Epithelial and mesenchymal non-small cell lung cancer (NSCLC) cell lines after treatment with 50nM volasertib for 24 hours. Cells were then harvested, and lysates were immunoblotted for the indicated proteins. Epithelial and mesenchymal NSCLC cell lines after Plk1 silencing with siRNA for 48 hours. Cells were then harvested, and lysates were immunoblotted for the indicated proteins. Calu6 and H1792 mesenchymal NSCLC cell lines after VIM silencing with siRNA for 48 hours. Cells were then harvested, and lysates were immunoblotted for the indicated proteins. Calu6 (mesenchymal) and H1975 (epithelial) NSCLC cell lines after Plk1 and INTB1 silencing with siRNA for 48 hours. Cells were then harvested, and lysates were immunoblotted for the indicated proteins. Calu6 (mesenchymal) and H1975 (epithelial) NSCLC cell lines after treatment with fibronectin for 24 hours. Cells were then harvested, and lysates were immunoblotted for the indicated proteins. Calu6 and H1975 NSCLC cell lines after treatment with 50nM volasertib for 24 hours. Cells were then harvested, and lysates were immunoprecipitated (IP) using β1-integrin, vimentin, and Plk1 antibodies, then immunoblotted for the indicated proteins. Schematic summary of the proposed mechanism by which cMet drives primary and acquired resistance to volasertib in NSCLC and possible treatment combinations to overcome this resistance.
Dcp-1 is necessary for autophagic flux during midoogenesis.Figure 1.(A) UASp-GFP-mCherry-DrAtg8a/+;nosGAL4/+ flies conditioned on yeast paste had diffuse GFP-mCherry-DrAtg8a staining in midstage egg chambers. (B) Nondegenerating midstage egg chambers from starved flies contained autophagosomes (yellow) and autolysosomes (red). (C and D) Egg chambers early in the degeneration process showed follicle cells that take up portions of the nurse cell cytoplasm (C) followed by condensation and fragmentation of the nurse cell nuclei and further uptake of the nurse cell cytoplasm into follicle cells (D). (E) Late stage degenerating egg chambers lose all GFP staining and fluoresce red. (F) Fed Dcp-1Prev1/Dcp-1Prev1;UASp-GFP-mCherry-DrAtg8a/nosGAL4 flies showed diffuse GFP-mCherry-DrAtg8a staining in the germline. (G) Starved Dcp-1Prev1/Dcp-1Prev1;UASp-GFP-mCherry-DrAtg8a/nosGAL4 flies showed reduced autolysosomes in degenerating midstage egg chambers. (H and I) Fed flies overexpressing truncated Dcp-1 (tDcp-1) in the germline showed increased autophagosomes and autolysosomes in nondegenerating midstage egg chambers (H) and also contained degenerating midstage egg chambers that lose all GFP fluorescence and fluoresce red (I). Bars: (main images) 25 µm; (insets) 12.5 µm. Insets in A-I show diffuse cytoplasmic staining of Atg8a or autophagosomes and autolysosomes. (J and K) The percentages of autolysosomes (autolysosomes/total autophagic structures) were manually calculated in at least eight egg chambers for each genotype as indicated. Error bars represent the means ± SD. Statistical testing was performed using one-way ANOVA with a Dunnet post test (****, P < 0.0001) or a two-tailed Student's t test (**, P < 0.005).
Figure 1A Schematic presentation of the approach. Cytosolic translation is inhibited with Harringtonine (Harr) while mitochondrial ribosomes are allowed to incorporate the alkyne-containing methionine homolog (HPG, orange) into newly-synthesized proteins. In fixed cells, HPG moieties are clicked to an azide-conjugated fluorophore (star, magenta), through copper-catalyzed Huisgen cycloaddition (click), and can be visualized microscopically. B WT HeLa cells were incubated with HPG for 30 minutes in the presence or absence of Harr and/or Chloramphenicol (Chl). After fixation, AF647-azide (magenta) was used for click reaction (see A), and cells were immunostained for TOM20 as mitochondrial marker (green). Representative epifluorescent microscopy images are shown. Magenta images shown in the presence of only Chl and in the absence of both inhibitors (none) are presented at lower brightness level than the other panels, duo to their very strong intensities. An inset of Harr panel is zoomed in the panel below for better visualization. Met, methionine. Scale bars, 50 µm and 10 µm for the zoom panel. C Mitochondrial translation products in osteosarcoma 143B control and Rho0 cell lines as described in A. Scale bars, 25 µm. D Comparison of mitochondrial translation labeling using radioactive [35S]Met in control HEK cells, or HPG followed by click reactions with AF488-azide, in purified mitochondria. Samples were analyzed by SDS-PAGE and either digital autoradiography or fluorescent gel imaging. E Similar experiments, performed by click reactions in 143B COX1 mutant cells (m.6930G>A), derived from a patient, or in COA6KO HEK293T cells, in comparison to the respective controls.
Figure 3(a) Pyruvate is transported into mitochondria via the mitochondrial pyruvate carrier (MPC, inhibitor: UK5099) and converted to acetyl-coA by pyruvate dehydrogenase complex (PDH, inhibitor: 1-AA). Pyruvate dehydrogenase kinases (PDKs, inhibitor: DCA) negatively regulate PDH activity. (b-e) FACS-sorted HE cells were subcultured with or without UK5099 (10 µM) or DCA (3 mM). Subculture day 3 representative GPA/CD43 plots (b, d) and subculture day 6 representative CD45/CD43 plots (c, e) are shown Data information: ns, not significant, *p<0.05, **p<0.01, ***p<0.001 (f) Ratio of CFU-E to CFU-G, M, GM colonies ± SEM relative to the control condition obtained from HE cells subcultured with the indicated compounds for 6 days (n=5 biological replicates with 1-2 technical replicates each, paired t-test). Data information: ns, not significant, *p<0.05, **p<0.01, ***p<0.001 (g) Fold change in the expression of HBE1 or HBG1-2 transcripts ± SEM normalized to KLF1 in CFUs obtained from HE cells treated with UK5099 (10 µM) or DCA (3 mM) relative to non-treated cells (n=3 biological replicates, paired t-test). Data information: ns, not significant, *p<0.05, **p<0.01, ***p<0.001 (h) Percentages of CD45+CD56+ ± SEM cells obtained following 35-day co-culture of 3-day subcultured HE cells with OP9-DL1 stroma. During the 3-day subculture, HE cells were treated with the indicated compounds. (n=3 biological replicates, one-way ANOVA test Data information: ns, not significant, *p<0.05, **p<0.01, ***p<0.001 (i-k) Pregnant mice were injected with UK5099 or DCA at E9.5 and fetal livers were analyzed at E14.5 by flow cytometry. FL, fetal liver. Levels of T and B cells (i) and LT-HSCs (j) as percentages in fetal liver are shown for control (n=10 biological replicates), UK5099-treated (n=14 biological replicates) and DCA-treated (n=16 biological replicates) conditions (one-way ANOVA test). (k) The ratio of BFU-E to CFU-GM colonies obtained from sorted LT-HSCs are shown CFU, colony forming unit; BFU, burst forming unit; E, erythroid; M, macrophage; G, granulocyte. Data information: ns, not significant, *p<0.05, **p<0.01, ***p<0.001 (l-p) HE cells co-cultured with OP9-DL1 stroma were treated with DCA for 3 days and transplanted into irradiated NSG mice. Bone marrow (BM) and thymi were harvested on week 12. (l) The percentages ± SEM of human CD4+CD8+ double positive thymocytes in huCD45+ cells from the thymus are shown (Control, n=6 biological replicates; DCA, n=7 biological replicates; unpaired t tests). The percentages ± SEM of human B cells (m), CLPs (n) from the BM at week 12, as well as myeloid cells from PB at week 8 (o) and myeloid cells from BM at week 12 (p) in huCD45+ cells are shown (Control, n=6 biological replicates; DCA, n=7 biological replicates; unpaired t tests). PB, peripheral blood. Data information: ns, not significant, *p<0.05, **p<0.01, ***p<0.001