EMBO/sd-character-level-ner huggingface dataset:
The PQ‐rich domain of TFG facilitates its further polymerizationTFG particle size was determined using dynamic light scattering under increasing potassium acetate concentrations.Figure 2A TFG particle size was determined using dynamic light scattering under increasing potassium acetate concentrations. Error bars represent mean ± SEM; n = 10 replicates. B Confocal microscopy images of recombinant, BODIPY‐labeled TFG in the presence of varying potassium acetate concentrations. Scale bar, 2 μm. C Recombinant TFG in the presence of varying potassium acetate concentrations was imaged by negative stain‐EM. Large arrowheads highlight TFG polymers (only found in the presence of elevated potassium acetate). Small arrowheads highlight individual 11 nm cup‐like TFG octamers. Scale bar, 30 nm. D Circular dichroism spectroscopy was used to characterize the carboxyl‐terminus of C. elegans TFG (amino acids 195‐486). Samples were analyzed at different concentrations, and the data were normalized relative to one another. CD spectra were collected at 25°C in 25 mM sodium phosphate (pH 7.2) using a 1 mm path length quartz cell. The spectra are characteristic of an intrinsically disordered protein.
Model of how high-torque motors are built based on in situ cryo-ET data.Figure 8A schematic summary of our cryo-ET imaging results illustrating how the high-torque motors of Beta-, Gamma-, (top) and Epsilonproteobacteria (bottom) are assembled.
Figure 7A) Median precursor length shift of nascent (left) and nucleoplasmic (right) piRNA precursors in rpb-9 (mj261) mutants and rescue (mj261; mjSi70) animals compared to wild-type (n=2). Central bands represent the median, boxes represent the 25th and 75th percentiles and whiskers represent the lowest and highest values, excluding outliers.E) Distribution of 5′ ends of short capped RNA reads mapping to motif-dependent piRNA loci. Total counts of read 5′ ends mapping within a 50bp window of motif-dependent piRNA loci, aggregated by position relative to 21U-RNA 5′ U sites. A comparable enrichment of reads initiating 2 nt upstream of 21U-RNA 5′ U sites is observed across replicates and genotypes.  F) rpb-9 recruits Integrator at piRNA loci. Representative single-plan immunofluorescence images of Integrator (ints-6::GFP ) and PRDE-1 (prde-1::mCherry) localization in wild-type and rpb-9 (mj261) animals. Scale bar = 5 µm.H) Positions of unique 5′ monophosphate small RNA reads mapping at piRNA promoters after removal of reads >15 nt initiating at annotated piRNA 5′ U sites. The average signal is normalized to sequences per million of mapped reads.
in MMS-treated cells.Figure 2Wild type, mrc1∆ and rad9∆ cells were released into S phase in the presence of BrdU and 0.033% MMS, as described in Fig. 1A. DNA combing analysis was performed for samples collected 45 and 60 min after release into S phase. Representative DNA fibers are shown. Red: DNA, green: BrdU. Bar is 20 kb. Distribution of center-to-center distances in cells released for 45 minutes into S phase. Distribution of BrdU track lengths in cells released for 45 or 60 minutes into S phase, respectively. Wild type, mrc1∆ and rad9∆ cells were synchronized in G1 with α-factor prior to release with pronase in the presence of 0.033% MMS. Cells were collected at the indicated times and Rad53 phosphorylation was monitored by western blot The asterisk indicates a non-specific band detected by the anti-Rad53 antibody. Wild type, mrc1∆ and rad9∆ cells were synchronized in G1 with α-factor prior to release with pronase in the presence of 0.033% MMS. Cells were collected at the indicated times and Rad53 phosphorylation was monitored with an in situ phosphorylation assay - ISA (F).
Decreased TIM23 complex and membrane potential in TIMM50 mutant fibroblasts A Western-blot of whole cell extracts for different components of the protein import machinery in control and TIMM50 mutant fibroblasts grown in either glucose or galactose containing medium.Figure 2A Western-blot of whole cell extracts for different components of the protein import machinery in control and TIMM50 mutant fibroblasts grown in either glucose or galactose containing medium. B Western-blot of whole cell extracts for different components of the protein import machinery in control and TIMM50 mutant fibroblasts, transduced with the empty vector (EV) or with wild-type TIMM50 grown in either glucose or galactose containing medium. C Mitochondrial membrane potential in fibroblasts grown in glucose or galactose using JC-1 staining in untreated or FCCP treated conditions. Data are shown as mean ± SD, n = 4 biological replicates; ∗p < 0.05, ∗∗p < 0.01, ∗*∗p < 0.001. D TMRM live staining of control and TIMM50 mutant fibroblasts, transduced with the empty vector (EV) or with wild-type TIMM50 grown in either glucose or galactose containing medium. Scale bar corresponds to 10 μm.
| Endothelial kugeln are non-nucleated with a filamenteous actin-enriched neck.Figure 3Double transgenic visualizing endothelial membrane (red) and endothelial nuclei (green). Endothelial nuclei (arrowhead) were observed close to but never within the kugel (unfilled arrowhead). Double transgenic showing endothelial membrane (red) and endothelial F-actin (green). F-actin was found to localize at the neck of the kugeln Double transgenic showing endothelial membrane (red) and endothelial cytoplasm (green). The cytoplasmic reporter was visible in the parent vessel but not in the kugel (unfilled arrowhead). Triple transgenic showing endothelial membrane (red), neurons (green) and erythrocytes (red). Surrounding neurons were excluded from the volume of the kugel (unfilled arrowhead) and erythrocytes were not observed inside kugeln (arrowhead). Treatment with the inhibitor of actin polymerization Latrunculin B statistically significantly increased number of kugeln per embryo (100nM 1 hour; **p = 0.0041; control n=21 embryos 8.05 ± 1.76 (mean ± s.e.m.); Latrunculin n=21 embryos 17.19 ± 2.93 (mean ± s.e.m.); 4dpf; 3 experimental repeats; Mann-Whitney U test). Latrunculin B treatment statistically significantly reduced kugel diameter (*p = 0.0164; control n=169 kugeln from 21 embryos 7.56 ± 2.25 (mean ± s.e.m.); Latrunculin n=361 kugeln from 21 embryos 5.91 ± 1.78 (mean ± s.e.m.); 4dpf; 3 experimental repeats; Student's t-test). Treatment with the Myosin II inhibitor Blebbistatin statistically significantly reduced number of kugeln per embryo (25 µM 1h; ****p <0.0001; control n=22 embryos 3.77 ± 0.56 (mean ± s.e.m.), Blebbistatin n=24 embryos 1.08 ± 0.22 (mean ± s.e.m.); 3dpf; 3 experimental repeats; Mann-Whitney U test). Blebbistatin treatment had no effect on kugel diameter (p = 0.3731; control n=83 kugeln from 22 embryos 6.27 ± 0.72 (mean ± s.e.m.), Blebbistatin n=26 kugeln from 24 embryos 7.02 ± 0.89 (mean ± s.e.m.); 3dpf; 3 experimental repeats; Mann-Whitney U test).
Fig.Figure 2This figure compares conformation of aminoacyl residues of the two A-site substrates:A. ACC-PuromycinB. ACCA-Pro.To show position of the A-site substrates relative to the P-site, the model P-site substrate tRNA-Phe is shown as in the pre-attack complex of the ribosome (pdb id 1vy4). In both illustrations, the A site is viewed as through the peptide exit tunnel. In addition to S. cerevisiae residues numbering, E. coli numbering is shown in parenthesis. Comparison of the two structures shows that the side chain of the methyl-tyrosine is bound to the conserved hydrophobic A-site cleft, whereas the side chain of the proline residue penetrates the actual site of peptide bond formation where it may interfere with alignment of the reacting groups and proper positioning of the attacking electron pair of the α-amine.
Tollip mediates the trafficking of TOM20+ve MDVs.Figure 1(A) siRNA knockdown of Tollip in SH-SY5Y cells was performed over 72 hours, with cells reverse transfected with siRNA oligos specific for Tollip (or mock) for 24 hours before a second transfection was performed for a further 48 hours. Knockdown was confirmed by western blotting. (B) After knockdown of Tollip, SH-SY5Y cells were treated with 5 μM antimycin A/10 μM oligomycin B (AO) or 25 μM Antimycin A (AA) alone for 2 hours, then fixed and stained for PDH E2/E3bp (green), TOM20 (red) and nuclei (blue). Images were captured using widefield immunofluorescence microscopy. Zoom insets represent 4x magnification and arrowheads indicate TOM20-positive MDVs. (C, D) The number of TOM20+ve/PDH-ve MDVs (C) or PDH+ve/TOM20-ve MDVs (D) per cell were quantified from immunofluorescence images captured (E) SH-SY5Y cells were transfected with GFP-labelled Tollip for 24 hours then treated with AO, AO/100 μM bafilomycin A1 (AO/BfnA1) or AA alone for 2 hours prior to fixation. Cells were then immunostained for GFP (green), PDH E2/E3bp (red) and TOM20 (blue) and imaged by widefield immunofluorescence microscopy. GFP-Tollip was observed on TOM20+ve/PDH-ve MDVs (arrowheads). Zoom insets represent 7x magnification. (F) Images captured using super-resolution radial fluctuations (SRRF) microscopy showing both TOM20 (arrowheads) and PDH (arrows) MDVs in SH-SY5Y cells after Tollip siRNA knockdown. Left side images are the first in each of the original widefield image stacks. Scale bar for zoom images is 0.5 μm.
Atg5‐deficient colonic epithelial spheroids accumulate cytoplasmic mucin within goblet cells.Figure 2(A) Schematic for the generation of differentiated goblet cells within colonic epithelial spheroid cultures. (B) Representative whole‐mount images of single spheroids cultured in either 50% conditioned media (CM) or 5% CM+5 μM DAPT and stained for Muc2 (green) to visualize goblet cells. Bars=20 μm. (C, D) Graph of relative expression (as measured by qRT‐PCR) of Atoh1 (C) and Muc2 (D) mRNAs comparing spheroids grown in either 5% CM or 5% CM+ DAPT to spheroids grown in 50% CM (n=4-5 samples/group). Error bars indicate s.e.m. *P0.05; **P0.01 as determined by a two‐tailed Student's t‐test. (E, F) Images of colonic epithelial spheroids isolated from control and Atg5VC mice grown in 5% CM+DAPT and stained for Muc2 (green: E) or with the lectin, UEA (red: F). Bars=20 μm. (G) Quantification of average mucin area/goblet cell. Error bars indicate s.e.m. (n=6 samples/group; 100 cells were quantified/sample; **P0.01 as determined by a two‐tailed Student's t‐test). (H) Relative expression of Muc2 mRNA in differentiated spheroids from control and Atg5VC mice as measured by qRT-PCR (n=4-5 samples/group). No statistically significant differences were found in Muc2 expression as determined by the Student's t‐test. (I, K) Images of FIP200f/f (I) and Atg14f/f (K) colonic epithelial spheroids treated with recombinant Tat‐Cre and stained with UEA (red). (J, L) Quantification of average mucin area/goblet cell. Error bars indicate s.e.m. (n=6 samples/group; 100 cells were quantified/sample; **P0.01 and ***P0.001 as determined by a two‐tailed Student's t‐test).
Impaired TORC1 inactivation upon amino acid removal is not a general consequence of impaired translation(a-a’) Although knockdown of eIF4A or eIF3-S2 equally blunt translation of EGFP from an inducible plasmid (a), only knockdown of eIF4A but not eIF3-S2 impairs TORC1 inactivation upon amino acid removal (a’).Figure 2(a-a') Although knockdown of eIF4A or eIF3-S2 equally blunt translation of EGFP from an inducible plasmid (a), only knockdown of eIF4A but not eIF3-S2 impairs TORC1 inactivation upon amino acid removal (a'). (a) S2 cells, treated with indicated dsRNAs for 5 days, on day 3 transfected with an inducible EGFP plasmid (pMT-EGFP) and on day 4 induced for 18h. Non-targeting LacZ dsRNA used as a negative control. (a') S2 cells treated with indicated dsRNAs for 5 days, then incubated with medium lacking amino acids for indicated time prior to lysis. Representative of two biological replicates. (b) Knockdown of eIF4A, but not other translation initiation factors, blunts TORC1 inactivation upon amino acid withdrawal. Kc167 cells treated with indicated dsRNAs for 4 days and then incubated with complete Schneider's medium or Schneider's medium lacking the indicated amino acids for 30 minutes prior to lysis. (c) Inhibition of translation with cycloheximide does not block inactivation of TORC1 upon amino acid withdrawal in Kc167 cells. Kc167 cells treated with either eIF4A dsRNA for 4 days, or cycloheximide (50 µg/mL, "CHX") for 5 min prior to, as well as during removal of amino acids (-LIVASTQP). CHX treated cells still inactivate TORC1 (compare lanes 8 to 7) whereas eIF4A knockdown cells do not (lanes 14 vs 13). Quantifications of two biological replicates are shown. CHX and eIF4A samples were normalized to their respective control conditions. (d) Knockdown of eIF4A in Kc167 cells does not prevent a drop in intracellular amino acids levels when amino acids are removed from the medium for 30 min. Quantification of total intracellular amino acids, analyzed in a blinded fashion. Levels of individual amino acids shown in Figure S2D. For CHX samples, cycloheximide (50µg/mL) was added 5 minutes prior to, and during treatment with medium containing or lacking amino acids. Statistical significance tested by ANOVA2 using Scheffé's multiple comparisons method (p<0.05). Error bars: std. dev. n=5.
Figure 6(A) Confocal images of Proximity Ligation Assays performed on CD47 and CXCR4, CD47 and RAGE, CD47 and TLR4. Representative images from one experiment out of 3 performed are shown. MM cells were incubated overnight with 400 nM BoxA or PBS. Nuclei are in blue (DAPI), phalloidin is in green. Red dots represent physical contact of CD47 with CXCR4 or RAGE or TLR4. Scale bar, 20 μm. The intensity of red signal in PLA was quantified as described in Materials and Methods in individual cells (n as indicated). Insets are enlargements of the y axis. Mean and SD are indicated. Statistics: Kolmogorov-Smirnov test. (B) Cxcr4 mRNA expression in MM cells transfected with shCxcr4 (pools 1 and 2) relative to MM cells transfected with shScramble (AB1 shCTR), one biological replicate, in technical triplicate. (C) Cell proliferation. shCTR (n=3) and shCxcr4 MM cells (pools1+2, n=6)) were plated (4.4x104 at the start of the experiment, t-16h), treated or not with 800 nM BoxA for 24 hours and counted. Statistics: t-test. (D) Flow cytometry analysis of surface CD47 in shCTR and shCxcr4 MM cells (pools 1+2) exposed or not to 800 nM BoxA for 24 hours. Data information: bars and error bars represent mean ± SD; statistics: One-way Anova plus Tukey's post-test. In all panels, error bars indicate standard deviation; *p<0.05, **p<0.01, ***p<0.001, ****p<0.0001. (E) Flow cytometry analysis of surface CD47 on MM cells after exposure to 800 nM BoxA and 100 nM AMD3100 for 24 hours. Data information: bars and error bars represent mean ± SD; statistics: One-way Anova plus Tukey's post-test. In all panels, error bars indicate standard deviation; *p<0.05, **p<0.01, ***p<0.001, ****p<0.0001.
Mutations in OKP1 suppress growth defects of mutation of Cse4-R37.Figure 2Overview of the amino-acid sequence of Cse4. R37Me and K49Ac sites are part of the essential N-terminal domain (END, aa 28 - 60, yellow) and are indicated in red. The localization of α-helices in the histone fold domain are shown in grey. Amino acid residues that are relevant for this study are indicated with numbers. okp1-R164C suppressed the temperature-sensitive growth defect of cbf1∆ cse4-R37A. Serial dilutions of strains with the indicated genotypes were spotted on full medium and grown for three days at 30ºC or 37ºC. The original okp1-R164C isolate from the suppressor screen is indicated as "UV mutagenesis". Serial dilutions of strains with the indicated genotypes were spotted on full medium and grown for three days at 30ºC or 37ºC. The original okp1-R164C isolate from the suppressor screen is indicated as "UV mutagenesis". okp1-R164C suppressed the growth defect of cse4-R37A with chl4∆. okp1-R164C was unable to suppress the lethality of cse4-R37A with ame1-4. Tetrad dissection of a genetic cross between a cse4-R37A okp1-R164C and an ame1-4 strain is shown. The four spores from individual asci are aligned in vertical rows. okp1-R164C suppressed the maintenance defect of cse4-R37A for plasmids lacking the CDEI sequence of CEN6 (CEN ∆CDEI, at 37ºC). Error bars give SD of at least three independent transformants. * p = 0.03. The okp1 mutations I45T, S94T and E208V suppressed the temperature-sensitive growth defect of cbf1∆ cse4-R37A. Strains with the indicated okp1 alleles on a plasmid (derivatives of AEY5584)
in mice.Figure 4(A, B) Overexpression of AAV-hTau decreased the protein levels of GluN1, GluN2A and GluN2B detected by Western blotting in the hippocampal CA3 of C57 mice, compared with the AAV-eGFP vector control. (C, D) Simultaneous downregulation of STAT1 by infusing AAV-Cre in hippocampal CA3 of STAT1flox/flox mice abolished the hTau-induced inhibition in expression of NMDARs protein. Data information: Data were presented as mean ± SD (n=4; Mann-Whitney test). *, p<0.05, **, p<0.01, ***, p<0.001 vs eGFP or hTau. (E, F) Overexpression of AAV-hTau or simultaneous downregulation of STAT1 changed the mRNA levels of GluN1, GluN2A and GluN2B detected by qRT-PCR in the hippocampal CA3. Data information: Data were presented as mean ± SD (n=4; Mann-Whitney test). *, p<0.05, **, p<0.01, ***, p<0.001 vs eGFP or hTau.
FGF7 suppresses virus-induced ISG expression and stimulates replication of different viruses in keratinocytes (A-E) Serum-starved HaCaT cells were infected with HSV-1 (MOI=0.Figure 6Serum-starved HaCaT cells were infected with HSV-1 (MOI=0.5) +/- FGF7 (10 ng/ml), added at the indicated time points (A). Serum-starved HaCaT cells were infected with HSV-1 (MOI=0.5) +/- FGF7 (10 ng/ml), added at the indicated time points 12 h after infection, RNA samples were analyzed by qRT-PCR for RSAD2, IRF7 and IFNL2 relative to RPLP0 (B), Serum-starved HaCaT cells were infected with HSV-1 (MOI=0.5) +/- FGF7 (10 ng/ml), added at the indicated time points 12 h after infection, , DNA samples were analyzed by qPCR for Glyc-B DNA relative to ACTB (C), Serum-starved HaCaT cells were infected with HSV-1 (MOI=0.5) +/- FGF7 (10 ng/ml), added at the indicated time points D) shows mean Glyc-B DNA and RSAD2, IRF7 and IFNL2 mRNA levels (based on results shown in Fig. 6B and C) in virus-infected cells treated for different periods with FGF7. Serum-starved HaCaT cells were infected with HSV-1 (MOI=0.5) +/- FGF7 (10 ng/ml), added at the indicated time points 12 h after infection, protein lysates were analyzed by Western blot for Glyc-D, total and phosphorylated STAT1 (Y701), STAT2 and IRF3, for IRF1, IRF7, IRF9 and RSAD2 and for GAPDH or vinculin (loading controls) (E). Quantification of the Glyc-D, RSAD2, IRF1, IRF7, IRF9 and STAT2 band intensity relative to GAPDH is shown on the right hand side. (F) HaCaT cells were infected with LCMV in the presence or absence of FGF7 (10 ng/ml) or IFN-α (1000 U/ml) and analyzed for LCMV nucleoprotein (NP) by flow cytometry 24 hpi. Arbitrary units are shown. HaCaT cells were infected with ZIKV strains 976 (Uganda isolate) (MOI = 0.1) or PF13/251013-18 (French Polynesia isolate) (MOI = 20) and treated 2 hpi with FGF7 (20 ng/ml) or vehicle (CTRL). Immunofluorescence staining for the ZIKV envelope protein and quantification of the percentage of cells expressing the ZIKV envelope protein (G) 48 hpi is shown. HaCaT cells were infected with ZIKV strains 976 (Uganda isolate) (MOI = 0.1) or PF13/251013-18 (French Polynesia isolate) (MOI = 20) and treated 2 hpi with FGF7 (20 ng/ml) or vehicle (CTRL). qRT-PCR analysis of RNA samples for ZIKV RNA (H) 48 hpi is shown. (I, J) HaCaT cells were infected with the ZIKV PF13/251013-18 (MOI = 20) in the presence or absence of FGF7 (20 ng/ml). RNA samples were analyzed by qRT-PCR for OAS1 and MxA relative to RPLP0 72 hpi.
Figure 2A. Cross section of the yeast V-ATPase c-ring (as seen from the cytosol toward the membrane), highlighting the unequal angular spacing between c-ring essential glutamic acid residues. Due to the unique position of c″E108, the angular spacings between c-ring essential glutamates are 8 × 36º, 1 × 18º, and 1 × 54º. This asymmetry allows one full 360º rotation to be divided into two steps of 3.5 × 36º = 126º, and one step of 3 × 36º = 108º, thus causing less strain in the DF central rotor subcomplex. B. Positions of c-ring essential glutamic acid residues in wild type and mutant strains c″E108G (Delete), c″S192E (Addition) and c″E108G/S192E (Switch). Small red circles indicate glutamic acid residues and numbered circles indicates the TM helix of each proteolipid chain. Only a part of the c-ring is shown. C. Growth phenotypes of wild type and c″-mutant yeast strains probed on (1) rich media buffered to pH 5 (YPD pH 5); (2) synthetic dropout (SD) plus all amino acids (SD + all a.a.); (3) SD minus uracil (SD - ura); (4,5) YPD buffered to pH 7 plus 4 mM Zn2+ or 60 mM Ca2+, respectively; (6) YPD buffered to pH 7; (7) YPD plus 60 mM Ca2+. D. Cross section of the symmetric c10 ring of the A/V-type ATPase from Enterococcus hirae (PDB 2BL2) (Murata et al, 2005). The three steps of the symmetric c-ring are two steps of 108º, and one step of 144º. E. Measured angles of c-ring rotation between states 1-3 of yeast V-ATPase. The measured rotation angles deviate slightly from the predicted angles due to a small "over rotation" of state 2, which brings the three c-ring angles even closer to the 120º steps of the DF central rotor.
Figure 1(A) Electrophoretic analysis (under non-denaturing conditions) of the association between the indicated IκBα species association and reconstituted nucleosome core particles (NCP). (B) Electrophoretic analysis in agarose gels of in vitro generated p-IκBα and reconstituted nucleosome in absence or presence of anti-IκBα antibodies.