EMBO/sd-character-level-ner huggingface dataset:
Figure 2(A) Normalised concentration values of 16 amino acids in cells grown in EMM without (grey) or with (blue) antimycin A. For each condition, four independent samples were analysed. Concentrations are presented relative to the mean value for the given amino acid in EMM medium. *Ornithine (Orn) is abbreviated as O. Boxplots were created using R boxplot command with default settings. The central band indicates the median, the upper and lower limits of the box indicate first and third quartiles, and the whiskers show the most extreme data, limited to 1.5-time interquartile range. (B) Amino-acid concentrations before and after addition of antimycin A to cells exponentially growing in EMM. Left: heat map showing concentration changes (log2 fold change) of each measured amino acid during the time course relative to time point 0 (before antimycin A addition). Right: simplified scheme of amino-acid biosynthetic pathways. Amino acids for which any biosynthetic enzyme has an annotated mitochondrial location are highlighted in yellow. *Ornithine (Orn) is abbreviated as O. (C) Left panels: cell growth in EMM without (red) or with (blue) arginine supplementation for five selected respiratory mutants as indicated (graphs selected from Fig EV3). Right panels: normalised intracellular amino-acid concentrations as in (A) for the same 5 respiratory mutants (blue) and wild-type control cells (grey). For each mutant and the wild type strain, four independent samples were analysed. *Ornithine (Orn) is abbreviated as O. Boxplot features as in (A).
The novel cytoplasmic rings affect the position of the torque ring protein FliG.Figure 6A & B) Surface renderings of the motor of the fully-assembled flagellum (grey) and the P-complex (blue) of H. gracilis (A), and the MS-complex of ΔfliM ΔfliP* (blue) and ΔfliO ΔfliP* in H. pylori (grey) (B). Boxed areas in the STAs shown on the right represent the surface-rendered areas shown on the left. Red dotted circles in the left panels highlight the different orientations of the FliG protein in these structures.Scale bar is 20 nm.
Figure 5(A) Long mouse and human DNGR-1 ECD proteins were diluted in PBS or 10 mM MES pH 6.1 buffer and 20 independent far-UV spectra were acquired for each condition (red and black lines depict the composite curve for each condition) (B) Long mouse DNGR-1 ECD was diluted in PBS or 10 mM MES pH 6.1 buffer and 20 independent near-UV spectra were acquired for each condition (red and black lines depict the composite curve for each condition and the blue line shows the difference between the two). (C) Schematic representation of the suggested conformational states of DNGR-1.
a) H3R expression in cultured rat cortical neurons at DIV7 after OGD/R injury (2 h OGD and 24 h reperfusion) shown by western blot (n=6 per condition; **P0.f1(a) H3R expression in cultured ratcortical neurons at DIV7 after OGD/R injury (2 h OGD and 24 h reperfusion) shown by western blot (n=6 per condition; **P0.01 versus control with Student's t-test). Full-size blots are shown in Supplementary Fig. 9. (b) When the H3R antagonist thioperamide (THIO, 10−6 mol l−1 at reperfusion) and the agonist immepip (IMME, 10−6 mol l−1 at reperfusion) were administered, viability was tested in cultured neurons by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay after OGD/R (n=7 per condition; ***P0.001 with analysis of variances (ANOVAs) followed by the Bonferroni/Dunn post hoc test). (c) 2,3,5-triphenyltetrazolium chloride-stained brain sections showing the infarct area in WT and H3R−/− mice receiving saline, the H3R antagonists A331440, clobenpropit (CLOB) and thioperamide, (THIO; 5 mg kg−1, i.p., immediately at reperfusion and 6 h later), and the H3R agonist immepip (IMME, 1 μg, i.c.v., at reperfusion) after I/R (1 h MCAO followed by 24 h reperfusion; scale bar, 5 mm). The bar graphs show infarct volume (d) and neurological score (e) (n=6-8 mice per condition, *P0.05, **P0.01, ***P0.001 versus WT saline group with ANOVAs followed by the Bonferroni/Dunn post hoc test). Data are presented as mean±s.e.m.
Effect of absence of the Ctf19-Mcm21 binding motif on kinetochore organization.Figure 7A) Schematic of K. lactis Okp1 or K. lactis Okp1 without the Ctf19-Mcm21 binding motif (Okp1_cmΔ); annotation is as shown in Fig 3A. B) Representative images of Western-blots of immunoprecipitated fractions from S. cerevisiae extracts with Okp1-6×flag and Ctf19-4×myc; fl: Okp1_fl; cmΔ: Okp1 variant without the Ctf19-Mcm21 binding motif (Okp1_cmΔ); IP: immunoprecipitated samples. Protein G: beads coated with Protein G only (used as control); positions of molecular masses of standards are indicated; uncropped images are in Appendix Fig S8B,C. C) Representative microscopy images of living haploid S. cerevisiae cells with Nuf2-mCherry, and Ctf19-GFP or Mcm21-GFP, either with Okp1_fl or with Okp1_cmΔ. We show merged green fluorescence signals and red fluorescence signals as pseudo-colours. We show fluorescence images of cells with Okp1_fl or Okp1_cmΔ with the same fluorophor-fusion kinetochore protein on the same intensity scale (also applies to images in D). Fluorescence images and those in D are deconvoluted and maximum intensity projected; scale bar: 2 μm. D) Representative microscopy images of living haploid S. cerevisiae cells with Okp1_fl or Okp1_cmΔ, with GFP-tagged kinetochore subunits. Image pixels for images of cells with GFP-fusion proteins of Chl4, Iml3, Mif2, Ctf3, Cnn1, Nkp1, or Nkp2 are 2×2 binned; scale bar: 2 μm. The low GFP signal-intensity that we observe for Chl4-GFP and Iml3-GFP in Okp1_fl cells is consistent with the low GFP signal for Chl4-GFP and Iml3-GFP at centromeres that was previously reported (Joglekar et al, 2008; Lawrimore et al, 2011). E) Scheme summarizing our in vivo observed centromere localization dependencies. Solid arrows: localization dependencies found by our study or by studies of others; dashed arrows: protein-protein interactions.
deficiency on gluconeogenesis and insulin signaling in vivo and vitro.Figure 6Male Raptor flox/flox mice (8 weeks) were fed a HFD for 12 weeks and injected with AAV8- GFP or AAV8-shDOCK5 or AAV8-shDOCK5 + AAV8-Cre via the tail vein. The mRNA and protein expression of PEPCK and G6Pase in the liver. Male Raptor flox/flox mice (8 weeks) were fed a HFD for 12 weeks and injected with AAV8- GFP or AAV8-shDOCK5 or AAV8-shDOCK5 + AAV8-Cre via the tail vein. Total and phosphorylated InsR, IRS-1Ser1101 and Akt in the liver. Male Raptor flox/flox mice (8 weeks) were fed a HFD for 12 weeks and injected with AAV8- GFP or AAV8-shDOCK5 or AAV8-shDOCK5 + AAV8-Cre via the tail vein. The levels of DOCK5 and Raptor protein, and total and phosphorylated mTOR and S6K1 in the liver. MPHs from Raptor flox/flox mice were infected with Ad-GFP or Ad-shDOCK5 or Ad-shDOCK5 + Ad-Cre. The lysates were immunoblotted with indicated antibodies or β-actin. The expression of PEPCK and G6Pase mRNA and protein. MPHs from Raptor flox/flox mice were infected with Ad-GFP or Ad-shDOCK5 or Ad-shDOCK5 + Ad-Cre. The lysates were immunoblotted with indicated antibodies or β-actin. Total and phosphorylated InsR, IRS-1Ser1101 and Akt. MPHs from Raptor flox/flox mice were infected with Ad-GFP or Ad-shDOCK5 or Ad-shDOCK5 + Ad-Cre. The lysates were immunoblotted with indicated antibodies or β-actin. The levels of DOCK5 and Raptor protein, and total and phosphorylated mTOR and S6K1.
Figure 3A. RF, but not RK mutant, suppresses H3K18 deacetylase activity of SIRT7. Flag-SIRT7 and its RK/RF mutants were expressed in HEK293T and MEF cells, respectively. Cell lysates were subjected to western blot to detect histone H3K18 acetylation. H3K27ac and H3K56ac were included as negative control. The level of each histone acetylation marker was normalized against histone H3 (Ratio) B. R388 methylation of SIRT7 decreases its H3K18 deacetylase activity. HEK293T cells expressing wildtype SIRT7 or its RK/RF mutants were treated with or without AdOx for 24 hrs. The SIRT7 enzyme was immunopurified with Flag-beads and further incubated with extracted chromatin in vitro. R388 methylation of immunopurified SIRT7 and H3K18ac of in vitro deacetylated chromatin were determined by western blot C. RF, but not RK mutant, shows reduced H3K18 deacetylase activity in vitro. Chromatin was extracted from HEK293T cells and incubated with recombinant GST-tagged SIRT7 (wildtype and RK/RF mutants) in vitro for 2 hrs. H3K18ac was determined by western blot D. Wildtype PRMT6, but not its methylase-dead mutant, decreases the H3K18 deacetylase activity of SIRT7. Flag-tagged SIRT7 was co-expressed with wildtype PRMT6 or its catalytic-inactive mutant (DM) in HEK293T cells. The H3K18 deacetylase activity of immunopurified SIRT7 was assayed in vitro E. PRMT6 deficiency promotes the H3K18 deacetylase activity of SIRT7. Control sgRNA or two independent sgRNAs (#1 and #2) against PRMT6 was introduced into HEK293T cells. Flag-tagged SIRT7 was ectopically expressed in these cells. The histone deacetylase activity of immunoprecipitated SIRT7 was assayed in vitro using chromatin as a substrate. R388 methylation of immunopurified SIRT7 and H3K18 acetylation level of in vitro deacetylated chromatin was determined by western blot F-G. Methylated recombinant SIRT7 shows reduced H3K18 deacetylase activity. In vitro methylated SIRT7 from Fig 2L was subjected to in vitro deacetylation assay. H3K18 acetylation level of in vitro deacetylated chromatin was determined by western blot (F). Relative H3K18ac level was quantified from three independent experiments (G) (mean±SD, n=3 experimental replicates, **p<0.01, n.s.=not significant, unpaired two-tailed t test)
H4 via an evolutionarily conserved motif.Figure 1(A) Domain structure of Spt5 / NusG proteins. The enlarged inset shows a conserved region of Spt5N from Saccharomyces cerevisiae (S.c.), Schizosaccharomyces pombe (S.p.), Aspergillus nidulans (A.n.), Homo sapiens (H.s.), Xenopus laevis (X.l.) and Arabidopsis thaliana (A.t.). Spt5N contains three invariant residues that were mutated in Spt5-3A (indicated by red asterisks), whilst residues with conservative substitutions are denoted by blue asterisks. (B) GST, GST-MCM2N (human) and GST-Spt5N (yeast) were mixed as indicated with yeast histones H3-H4, in the presence of glutathione agarose beads (see STAR method for further details). The input and pulldown samples were analysed by SDS-PAGE before staining with colloidal Coomassie blue. The asterisks denote truncations of GST-Spt5N. (C) Similar experiment to (B) but with histones H2A-H2B. (D) Similar experiment to (B) to compare histone binding by GST-MCM2N and GST-MCM2N-2A (with Y81A Y90A mutations of conserved residues). (E) Analogous experiment to (D), comparing histone binding by GST-Spt5 and GST-Spt5N-3A (with F180A E184A V187A mutations of conserved residues). (F) Budding yeast Spt5N and Spt5N-3A were expressed as fusions to Protein A in budding yeast cells. Cell extracts were treated with DNase as indicated, to release nucleosomal histone complexes from chromatin, before immunoprecipitation (IP) of Spt5N / Spt5N-3A on magnetic beads coated with IgG. The bound proteins were eluted and then analysed by mass spectrometry (the panel indicates the detected spectral counts). (G) Samples from an analogous experiment to that shown in (F) were analysed by immunoblotting of the indicated factors. The asterisk indicates a non-specific band in the immunoblot for histone H2B. (H). Budding yeast cells expressing fusions of Spt5N and Spt5N-3A to Protein A were grown in parallel with cells expressing the equivalent wild type and mutant versions of fission yeast Spt5N (Sp Spt5N and Sp Spt5N-3A - the latter contained the F146A, E150A and V153A mutations).
Figure 4(A) Confluency doubling times quantified from BV-2 cells with stable retroviral expression of Siglec-F and related human Siglec constructs. Plots indicating doubling time (normalized to 2xY->F constructs) estimated from Incucyte bright-field images. Cells grown in media alone or + 50 mU sialidase (+SA). Bars indicate mean ± 95% CI; n = 3-12 replicates; *: p < 5e-2, **: p < 1e-2, ***: p < 1e-3, ****: p < 1e-4; ns: not significant, using unpaired Student's t-test, two-sided. Dotted line indicates mean of 2xY->F groups. (B) Flow cytometry quantification of cell live / dead markers Annexin-V and propidium iodide on BV-2 cells with stable retrovirus expression of Siglec-F constructs. % parent values are shown for early apoptotic (Annexin-V+;PI‑), late apoptotic (Annexin-V+;PI‑), and necrotic (Annexin-V-;PI+) populations. Bars indicate mean ± SD; n = 8 replicates. (C) Confluency doubling times quantified from BV-2 cells with dox-inducible expression of Siglec-F constructs. Plots indicating doubling time (normalized to 2xY->F constructs) estimated from Incucyte bright-field images. Bars indicate mean ± SD; n = 8 replicates; *: p < 5e-2, **: p < 1e-2, ***: p < 1e-3, ****: p < 1e-4; ns: not significant, using unpaired Student's t-test, two-sided. Dotted line indicates mean of 2xY->F group. (D) Selected gene expression changes (top) and enriched gene sets (bottom) taken from RNA-seq analysis of BV-2 cells with stable retroviral expression of Siglec constructs, 2xY->F, and empty vector controls. Heatmaps share a colormap range of 0.25 to 4 for z-score values (top), normalized enrichment scores (NES, bottom). (E) Quantification and overlap of differentially expressed genes (DEGs) between each Siglec-expressing BV-2 cell line. DEGs were calculated for each Siglec gene compared to respective 2xY->F mutants (upregulated: p < 1e-8, FC > 1.5; downregulated: p < 1e-8, FC < 0.66). (F) Expression levels of C1qa, IL-1β, and β-actin by qPCR analysis in BV-2 cells with inducible Siglec-F expression after 48 hours of treatment with 500 ng/mL doxycycline. Fold Change values are equal to 2ΔΔCq normalized relative to GADPH mRNA levels. Bars indicate mean ± 95% CI; n = 6 replicates; *: p < 5e-2, **: p < 1e-2, ***: p < 1e-3, ****: p < 1e-4; ns: not significant, using unpaired Student's t-test, two-sided. Dotted line indicates mean of 2xY->F group. (G) Western blot showing pro-IL-1β and β-tubulin in BV-2 cells induced to express Siglec-F at 0 and 48 hours.
Figure 4a-b, Cilia length changes in RPE1 cells treated with the indicated siRNAs and 48h SS stained with indicated antibodies. Representative images of cilia (a) and quantifications (b) are shown. Dot plots in (b) represent individual cilia. Scale bar: 1.5µm. Three biological replicates, n=100 cilia per sample and repetition. Data include mean ±s.d.; P values are calculated by unpaired Wilcoxon-Mann-Whitney Rank Sum Test c-d, Cilia length changes in RPE1 SEPT2-KO single clones after 48h SS stained with indicated antibodies. Representative images of cilia (c) and quantifications (d) are shown. Dot plots in (d) represent individual cilia. The parental cells (WT) and four KO clones (C7, C16, C10, C13) derived from two independent gRNAs were analysed. Three biological replicates, n>80 cilia per sample and repetition. Scale bar: 2µm. Data include mean ±s.d.; P values are calculated by unpaired Wilcoxon-Mann-Whitney Rank Sum Test e-f, Cilia segmentation in SEPT2-KO ciliated cells serum starved for 48h. Cells were immunostained with the indicated antibodies. Representative images (e) and quantifications of proximal segment (PS, Glu tub) and whole cilia (ARL13B) length (f) are shown. The numbers above the cartoons in (f) show the ratio of the calculated distal segment (DS)/whole cilia length. Scale bar: 2µm. Three biological replicates, n=100 cilia per sample and repetition. Data include mean ±s.d.; P values are calculated by two-tailed unpaired student t-test g, Electron microscopy of RPE1 WT and SEPT2-KO cilia. Black arrows point to the axoneme and basal body (BB). Scale bar: 400nm. h, Quantification of (g). Only cilia detected from bottom (BB) to tip in serial sections were quantified. N>15 cilia from two independent experiments. Data include mean ±s.d.; P values are calculated by unpaired Wilcoxon-Mann-Whitney Rank Sum Test i-j, RPE1 WT and SEPT2-KO cells after 48h SS were treated with solvent control (DMSO), cytochalasin D (CytoD) and/or nocodazole (Noco) for 3h before immunostaining with the indicated antibodies. Representative images (i) and quantifications of PS (Glu tub) and whole cilia (ARL13B) length (j) are shown. The numbers above the cartoons in (j) show the ratio of the calculated DS/whole cilia length. Scale bar: 3µm. Three biological replicates, n=100 cilia per sample and repetition. Data show include mean ±s.d.; P values are calculated by two-tailed unpaired student t-test
Figure 1A Localisation of transiently expressed GFP-Rab35 in IMCD3 cells after 48h serum starvation and staining for acetylated tubulin (acetyl. tub.) and DNA. Insets show higher magnification images of the cilia region. Scale bars, 10 µm. B Localisation of transiently expressed GFP-RAB35 in hTERT-RPE1 cells after 24 h serum starvation and staining for polyglutamylated tubulin (polyglu. tub.) and DNA. Insets show higher magnification images of the cilia region. Scale bars, 10 µm. C Super resolution (FV-OSR) imaging of hTERT-RPE1 stably expressing GFP-RAB35 after 24 h serum starvation and staining for GFP, ARL13B (cilia membrane), IFT88 (axoneme), acetylated tubulin (acetyl. tub.; axoneme), and γ-tubulin (γ-tub; centrosome). Top panels show representative images and bottom panel shows line profile plots of fluorescence intensity (arbitrary units; a. u.) in the distal (dotted line) and proximal (dashed line) cilia regions. Data are mean ± S.E.M. (n = 5 cilia), with the solid line in the line profile plots indicating mean and the dotted lines indicating S.E.M. values. Scale bars, 1 µm. D Representative FV-OSR images of 24 h serum-starved hTERT-RPE1 stably expressing GFP-RAB35 and stained for GFP, ARL13B and acetylated tubulin. Right panels show a cilium with proximal enrichment of GFP-RAB35 and left panels a cilium with even GFP-RAB35 localisation along the full length. Scale bars; 1 µm. E Representative FV-OSR images of 24 h serum-starved hTERT-RPE1 stably expressing GFP-RAB35 and stained for GFP, EHD1 and ARL13B. Line profile plots of fluorescence intensity in the proximal cilia region (dashed line) are shown to the right. Data are mean ± S.E.M. (n = 6 cilia), with the solid line in the line profile plots indicating mean and the dotted lines indicating S.E.M. values. Scale bars; 1 µm.
A working model.Figure 8A working model. Cholesterol‐enriched regions accumulate in the endolysosomal membranes of LSDs sequestering SNAREs in defined domains. This locks SNAREs in assembled complexes and reduces their availability to interact with dedicated adaptor components of vesicle coat, a process needed for SNARE re‐distribution between membranes. Consequently, the dysfunction of SNARE cycle decreases the rate of new fusion events.
Figure 6Micronuclei (MN) formation in BRCA2- and STN1-deficient cells. Co-depletion was achieved by transfecting siBRCA2 in U2OS cells expressing shSTN1. Representative DAPI staining images are shown. Arrows point to MN. Scale bars: 20 µm. Average percentages of nuclei containing MN from three independent experiments are presented. In each experiment, >300 nuclei were analyzed per sample. Anaphase bridges (arrows) in BRCA2- and STN1-deficient U2OS cells. Scale bar: 10 µm. Average percentages of anaphase bridges from three independent experiments are presented.    γH2AX induced by BRCA2 knockdown and STN1 knockdown in U2OS cells. Nuclei containing ≥ 5 foci were considered as positive γ-H2AX staining. Results were from three independent knockdown experiments. In each experiment, >80 cells were analyzed per sample.   Co-depletion of STN1 and BRCA2 significantly impairs DNA replication. Scale bar: 50 µm. Results were from three independent knockdown experiments. In each experiment, >180 nuclei were analyzed per sample. Co-depletion of STN1 and BRCA2 increases chromosome instabilities. U2OS cells with siBRCA2 and/or shSTN1 knockdown were treated with HU (2 mM, 3 h). Representative metaphase images show aberrant chromosomes (red arrows). Boxed areas are amplified and shown at the bottom of images. Scale bars: 20 µm. Two independent knockdown and chromosome spread experiments were performed. N, the number of metaphase spreads analyzed in each sample.
Figure 4Co-IP from HUVECs. Blots for β-actin shown in (A) were used to confirm equal loading in (B), as the same cell lysates were analyzed in both experiments. Immunoblots in HUVECs. Immunoblots in siRNA-transfected HUVECs. Co-IP from siRNA-transfected HUVECs. The graph shows relative levels of PlexinD1-VEGFR2 association, in which the values at 0 min are set to 1. n = 3 per group. Super-resolution images of receptor colocalization in siRNA-transfected HUVECs 30 min after Sema3E stimulation. Left panels show immunolabeling of VEGFR2 (green), PlexinD1 (red), and Nrp1 (white), with light-blue asterisks indicating nuclei. Middle panels show magnified views of white boxes in the left panels. Right panels represent fluorescence intensity profiles along 5 μm arbitrary lines in the middle panels. Scale bar, 10 µm. The graph shows the proportion of receptor complexes in PlexinD1-positive vesicles. n = 10 cells per group. Trajectory plots (left) and rose plots (right) of HUVECs pre-treated with the p38 MAPK inhibitor SB203580 under Sema3E gradient for 12 h. Red trajectories indicate cells with displacement to the negative y-axis at the end of analyses. P values for the Rayleigh test represent non-random distributions of cell endpoints. The graphs show FMI along the y- and x-axes during cell migration. n = 90 cells per group. model of Serma3E-induced reverse cell migration.
Figure 4A. Fitting of Elp123 structures into the 3D reconstruction of Elongator. The homology structure of the Elp1 N-terminal double WD40-domains, the homology structure of Elp3 based on the X-ray structure of D. mccartyi, the X-ray structure of Elp1 C-terminal dimer (5CQS), and the X-ray structure of Elp2 (4XFV). Scale bar corresponds to 50 Å, and applies to panels A-C. B. Fitting of the Elp456 heterohexameric ATPase ring (4A8J) into the six-membered ring from the larger Elongator lobe. C. Size comparison of a representative tRNA molecule (1VTQ) and the cavity observed through the middle of the Elp456 hexamer. D. Alternate views of the Elongator model showing the subunit crosslinking patterns.
Figure 8Seven days after denervation, weights of innervated (-) and denervated (+) tibialis anterior (TA) muscles were measured. n = 4, mean ± SEM. *p < 0.05 (unpaired two-tailed Student's t-test). Expression of myogenin in innervated and denervated TA muscles detected by qRT-PCR 7 d after denervation. n = 4, mean ± SD. ***p < 0.001 (unpaired two-tailed Welch's t-test). qRT-PCR showing increased Myoparr expression in denervated TA muscles 7 d after denervation. n = 3, mean ± SD. ***p < 0.001 (unpaired two-tailed Student's t-test). Immunoblot showing decreased expression of myogenin by Myoparr depletion in denervated TA muscle 7 d after denervation. Expression of tubulin served as an internal control. Weights of innervated and denervated TA muscles electroporated either with control or Myoparr shRNA. Muscle weights were measured 7 d after denervation. n = 5 for each group, mean ± SEM. ***p < 0.001. n.s., not significant (unpaired two-tailed Student's t-test). Representative immunostaining images for laminin (red) and EmGFP (green) of innervated or denervated TA muscles electroporated with control or Myoparr shRNA, both containing EmGFP. Bar, 100 μm. Cross-sectional area (CSA) of electroporated EmGFP-positive myofibers (250 fibers per sample) was analyzed 7 d after denervation. n = 5 for each group, mean ± SEM. **p < 0.01. n.s., not significant (unpaired two-tailed Student's t-test).