EMBO/sd-character-level-ner huggingface dataset:
Figure 7(A) HeLa cells were transfected with scrambled siRNA (SCR si) or siRNAs targeting hnRNP L, hnRNPUL1 or PEG10, 48 h post-transfection, cells were challenged with EBOV-EGFP at an MOI of 0.5. 24 h post-infection, cells were fixed, stained for nuclei with Hoechst dye and imaged. Scale bar is 200 µm.The graph (right) depicts relative number of infected cells as determined by calculating the ratio of number of infected cells to nuclei and shown relative to SCR siRNA. The data shows a representative result of two independent experiments with the mean ± S.D. calculated from three independently treated wells. Statistical significance was calculated relative to the values obtained in SCR siRNA-treated cells using ANOVA with Dunnett's multiple comparisons test. ***p<0.0001, ***p<0.001, **p<0.01 (B) Levels of transcription and replication in the MG assay upon over-expression of the indicated host factors. MG assays were performed with 50 and 500 ng of host protein expression plasmid. RNA was isolated and analyzed by qRT-PCR to measure the levels of viral mRNA/cRNA and vRNA. The sample with vector control was set to 100% and mean ± S.D. values from two independent experiments are shown (each experiment was performed in duplicate, n=2). **p<0.005, *p<0.05. Statistical significance was calculated relative to vector control using ANOVA with Tukey's multiple comparisons test. (C) Immunoblots to assess VP30 and pVP30 levels in lysates from MG assay upon knockdown of RBBP6, hnRNP L or hnRNPUL1. (D) Immunoblots to assess the levels of VP30, pVP30 and NP in EBOV infected lysates upon knockdown of NPC1 or RBBP6. HeLa cells were mock transfected or transfected with siRNA targeting NPC1 or RBBP6. 48 h post-transfection cells were infected with EBOV at MOI=0.1. At 24 h post-infection, cells were lysed in TRIzol. Protein was extracted from the TRIzol reagent and analyzed by Western blotting to determine levels of VP30, pSer29 VP30 and NP. (E) Western blots detecting pVP30, VP30 and NP levels in EBOV infected HeLa cells upon hnRNP L, hnRNPUL1 or PEG10 knockdown. (F) Proposed model for inhibition of EBOV replication by host factors containing PxPPPPxY motifs. Host proteins present at varying endogenous levels disrupt VP30-NP interaction thereby preventing VP30 dephosphorylation by NP-recruited host phosphatase PP2A-B56, and therefore inhibit virus transcription.
a) Proliferation of cells transfected 3 days earlier with a combination of control siRNA or VHR siRNA together with Mek, Jnk or Mek plus Jnk siRNAs.figf5(a) Proliferation of cells transfected 3 days earlier with a combination of control siRNA or VHR siRNA together with Mek, Jnk or Mek plus Jnk siRNAs. The data are calculated as percentage of control (control siRNA alone) and represent the mean ± s.d. from three independent experiments. The starting cell numbers were 150,000 or 200,000 and the control cells had increased by 5.3, 5.0 and 13-fold in the three experiments. (b) Immunoblots of the same cells with the indicated antibodies.
Figure 3GST pulldowns testing binding of indicated in vitro transcribed/translated 35S-Myc-CALCOCO1 constructs with indicated recombinant GST-tagged ATG8 family proteins (left). Cartoon of CALCOCO1 with domain organization indicated and the location of LIR and UIR motifs. The presence of two well separated binding surfaces on ATG8 proteins binding to LIR (LDS) and UIR (UDS) is indicated (right). B GST pulldowns testing binding of indicated in vitro transcribed/translated 35S-Myc-CALCOCO1 constructs with indicated recombinant GST-tagged ATG8 family proteins C GST pulldown assays of in vitro transcribed/translated 35S-Myc-CALCOCO1 and 35S-Myc-p62 with recombinant GST-GABARAPL2 (WT and indicated mutants). D GST pulldown assays of in vitro transcribed/translated 35S-Myc-TAX1BP1 (WT and indicated mutants) with recombinant GST-GABARAP (WT and indicated mutants). Immunoblot analysis of HeLa CALCOCO1 KO cell lines stably transfected with WT EGFP-CALCOCO1 or EGFP-CALCOCO1 mLIR+∆623-691. Cells were induced with tetracycline for 24 hours and then starved or treated with MG132 or Baf A1 as indicated. The blot panels are from more than one western blot experiment but for clarity, only a single actin/GAPDH loading control is shown. In F, the bars represent the mean±sd of band intensities relative to the actin or GAPDH loading controls of three independent experiments quantified using ImageJ. Statistical comparison was analyzed by one-way ANOVA followed by Tukey multiple comparison test and significance displayed as ***p ˂ 0.001, *p ˂ 0.01; ns is not significant. G HeLa CALCOCO1 KO cells stably expressing EGFP-CALCOCO1 or EGFP-CALCOCO1 mLIR+∆623-691 grown in full medium and treated with Baf A1 as indicated were immunostained for endogenous p62 and LC3B. Scale bars, 5 μm.
Figure 5A-B. Co-IP assays of ectopically expressed FLAG-GASZ and MFN-HA in 293T cells (A) A-B. Co-IP assays of endogenous proteins of GASZ and MFNs from adult testes (B). C. Co-IP assays of HA-tagged MFN1 with various FLAG-tagged wild-type GASZ, its domain deletion mutants, or GASZ with MLS mutations in 293T cells. D. Averaged percentage of MEFs with different types of mitochondria were determined according to the mitochondrial morphology by MitoTracker (Red) staining in wild-type MEFs, or MEFs containing MFN null mutations transfected with empty vector control (Ctrl) or a GASZ expressing plasmid. E. PEG fusion assays of Su9-GFP and COX4-DsRed labeled wild-type MEFs, or MEFs containing MFN null mutations transfected with empty vector control (Ctrl) or a GASZ expressing plasmid. Bar graph represents averaged percentage of areas with different levels of mitochondrial fusion.
Figure 2A. A diagram for generation of Pbk K64K65 → AA KI mice using CRISPR/Cas9 system. B. Target region in exon5 of murine Pbk locus. Mutant nucleotides for inducing KK→AA mutation were highlighted with blue. Two mismatched bases with silence mutations that generate a novel Mwol site are labelled in yellow. The amplicon and enzyme cutting size are indicated. C. PCR genotyping of tail genomic DNA for PbkKI/KI mice using RFLP. Genomic fragments from exon 5 were amplified by PCR and digested with Mwol. D. DNA sequence confirming the mutation from K64K65 to AA in PbkKI/KI mice from the tail genomic DNA compared with PbkWT/WT mice. E. IPGTT (glucose at 2 g/kg of body weight, i.p.) on 11-week-old male PbkKI/KI mice and PbkWT/WT mice (n=4 for each group). All mice were starved overnight (16h) before testing. F. Islet number in each pancreas section on 11-week-old male PbkKI/KI and PbkWT/WT mice (n=4 for each group). *P = 0.0443 (two-tailed unpaired student's t-test). G. Beta cell mass comparison between 11-week-old male PbkKI/KI and PbkWT/WT mice (n=4 for each group). **P = 0.0015 (two-tailed unpaired student's t-test). H. In vitro perifusion studies on the islets isolated from 11-week-old male PbkKI/KI and PbkWT/WT mice (n=3 for each group). I. HFD feeding schedule for PbkKI/KI and PbkWT/WT mice. 7-week- old male PbkKI/KI and PbkWT/WT mice were fed with HFD (n=8 for each group) for 12 weeks. J. Persistent measurement of GTT for PbkKI/KI or PbkWT/WT mice on HFD (n=4 for each group) or chow diet (n=2 for each group) at various times, i.e., 0, 3rd, 5th, 8th, and 12th week during HFD-feeding. The AUC data of GTT at various time points were shown. *P = 0.0294, (Two way ANOVA). ns, not statistically significant difference. K, L. Representative images of double immuno-staining for insulin (green) and BrdU (red) of pancreas from PbkWT/WT (K) or PbkKI/KI (L) mice with 5 weeks HFD feeding. Islet area was circled with white dashed line. Nuclei were labeled by DAPI (blue). Scale bar: 50 μm. M. Quantification of BrdU and insulin dual positive cells (n=4 per group). Four mice for each group, and 5-10 islet images per mouse were analyzed. *P = 0.0220 (two-tailed unpaired student's t-test). N. Beta cell mass comparison between PbkKI/KI and PbkWT/WT mice (n=4 per group). **P = 0.0010 (two-tailed unpaired student's t-test). O. Quantification of Pbk expression positive beta cells. Four mice for each group, 10 islet images per mouse were analyzed. ns, not statistically significant difference (unpaired two-tailed student's t-test).
Fig.Figure 1Linear model of α-actinin domains (CH, calponin homology domains; SR, spectrin repeats; EF, EF hands). Bars and numbers on top of the model depict the segments used in this work. Ensemble of 10 lowest energy NMR-derived structures of α-actinin-1_EF34 (cyan) bound to IQ peptide (red). Structural statistics are given in Table 1. Energy minimized average structure of α-actinin-1_EF34 (cyan) bound to IQ (red), revealing intermolecular salt bridges between K1647 of IQ and E847/E851 of α-actinin-1. The K1647 side chain amino nitrogen atom is 2.8 Å and 2.5 Å away from the side chain carbonyl oxygen atoms of E847 and E851, respectively. Intermolecular hydrophobic contacts between I1654 of IQ (red) and F833 of α-actinin-1 (cyan). The I1654 side chain methyl carbon atom is 2.9 Å away from the closest aromatic ring atom of F833. Side-chain atoms are colored yellow. Lack of direct contacts between F1658 of IQ (red) and α-actinin-1 (cyan). The aromatic side chain of F1658 is primarily solvent exposed and does not directly contact α-actinin-1. The aromatic ring of F1658 is closest to the aromatic ring of Y859 and β-methylene carbon of Q856 of α-actinin-1, which are 5.2 Å and 4.3 Å apart, respectively. FP titrations show binding of WT α-actinin-1_EF34 to IQ peptides WT (black) and K1647E (red), of α-actinin-1_EF34 mutant E847K/E851K to IQ peptides WT (green) and K1647E (purple), of full-length α-actinin-1 to IQ WT (o), and lack of IQ binding to α-actinin-1_CH1-CH2 (+) and α-actinin-1_EF12 (x; see Table 2 for binding parameters and standard errors). FP titrations showing binding of wild type α-actinin-1_EF34 to IQ peptides WT (black) and I1654A (purple) and of ACTN1_EF34 mutant F833 to IQ WT (red; see Table 2 for binding parameters and standard errors).
Figure 6A Co-immunoprecipitation of USP34 with ectopically expressed FLAG-tagged Smad1 in 293T cells  B Immunoblot analysis showing decreased FLAG-Smad1 after USP34 knockdown  C Immunoblot of Smad1-linked polyUb. 293T cells were co-transfected with FLAG-Smad1 overexpression plasmid and USP34 siRNA, and treated with 10 µM MG132 for 4 hours before collection  D Immunoblot analysis of the degradation of FLAG-Smad1 protein. 293T cells were co-transfected with FLAG-Smad1 overexpression plasmid and USP34 siRNA, and treated with 50 µg/ml cycloheximide (CHX) before collection at designated time points. Right: relative quantification of FLAG-Smad1 protein levels at different time points E Co-immunoprecipitation of USP34 with ectopically expressed FLAG-tagged RUNX2 in 293T cells F Co-immunoprecipitation of USP34 with endogenous RUNX2 in mouse MSCs G Immunoblot of RUNX2-linked polyUb. Differentiated mouse MSCs were treated with 10 µM MG132 for 4 hours before collection. Prx1-Cre(+) indicates MSCs isolated from Prx1-Cre;Usp34f/f mice, and Prx1-Cre(-) indicates those from Usp34f/f control mice H Immunoblot analysis of the degradation of endogenous RUNX2 protein in MSCs. Prx1-Cre;Usp34f/f and Usp34f/f control MSCs were stimulated with BMP2, treated with 50 µg/ml CHX, and collected at designated time points. Right: relative quantification of RUNX2 protein levels at different time points I Representative images of ALP and ARS staining. Usp34f/f and Prx1-Cre;Usp34f/f MSCs were transduced with GFP, Smad1, Runx2 or Smad1+Runx2 adenoviruses, and then cultured in osteogenic medium for 5 and 10 days, respectively J, K Quantitative analyses of the ALP activity and calcium mineralization. Results are shown as mean ± SEM; n=8; *: p<0.05, **: p<0.01 and ***: p<0.001 by ANOVA with Tukey's post hoc test L, M H&E staining and quantitative analysis of MSCs-mediated ectopic bone formation. Scale bar, 50 μm. Results are shown as mean ± SEM; n=8; *: p<0.05 and **: p<0.01 by ANOVA with Tukey's post hoc test
Figure 4A. Representative confocal images of 3xFLAG-OFD1 (OFD1) and 3xFLAG-OFD1∆LIR (OFD1∆LIR) co-staining with ATG13 in KO-OFD1 cells (HBSS,90min). Green, ATG13; red, FLAG; blue, Hoechst for nuclei. Scale bar=10μm. (Right) ATG13 puncta/cell are quantified and expressed as mean ± SEM; n=4 independent experiments, n≥100 cells. B. Western blot of ATG13 in KO-OFD1 cells transfected with 3xFLAG-OFD1 (OFD1) or 3xFLAG-OFD1∆LIR (OFD1∆LIR) or empty vector (Empty). (Right) ACTIN-normalized ATG13 protein levels are expressed as fold increase compared with empty vector (mean ± SEM); n=3 independent experiments. C. Top. OFD1 fragments (a,b and c). Bottom left. Lysates from empty vector (Empty), 3xFLAG-OFD1(OFD1), 3xFLAG-OFD1a (OFD1a), 3xFLAG-OFD1b (OFD1b), 3xFLAG-OFD1c (OFD1c) overexpressing HEK293 cells were added to GST-ATG13; lysates from 3xFLAG-OFD1(OFD1) overexpressing HEK293 cells were added to GST as control. Right. WB of total lysates (input). All panels display WB for FLAG, HSP90 is the loading control. LIR=LC3 interacting region. D. Scanning confocal microscopy analysis of wt and KO-OFD1 cells incubated in HBSS (8h), treated (+) or not (-) with Baf-A1(50nM, 8h). Green, LAMP1; red, ATG13; blue, Hoechst for nuclei. Scale bar=6μm. Insets show higher magnification and single colour channels of the boxed area. (Bottom) Bar graphs show quantification of lysosomes containing ATG13 expressed as % of total amount of LAMP1/cell (mean ± SEM). n=30 WT cells, n=28 KO-OFD1 cells counted; three independent experiments. E. Time course of OFD1 levels in HBSS-starved wt HK2 cells treated with Baf-A1 (100nM) and collected at different time points. LC3B is the control for Baf-A1 treatment. (Right) Graphs show ACTIN-normalized OFD1 levels versus FM condition (-) expressed as mean ± SEM; n=4 independent experiments. STV=starvation, Baf-A1=bafilomycin, Ctrl=control. F. Western blot of FLAG in KO-OFD1 cells transfected with 3xFLAG-OFD1 (OFD1) or 3xFLAG-OFD1∆LIR (OFD1∆LIR) and treated or not (-) with Baf-A1 (100nM,2h). (Right) Quantification of GAPDH-normalized FLAG levels versus untreated (-) is expressed as mean ± SEM; n=3 independent experiments. Baf-A1=bafilomycin.
a, BMDMs were infected with mCherry-expressing M.f2a, BMDMs were infected with mCherry-expressing M. tuberculosis for 4 h and immunostained using linkage-specific ubiquitin antibodies. b, Quantification of K63 and K48 ubiquitin-positive M. tuberculosis from a. c, BMDMs were infected with mCherry-expressing M. tuberculosis for 4 h and immunostained for NDP52, p62, phospho-TBK1 or NBR1. d, Quantification of co-localization from c (n = 3 per group, **P  0.001). All errors, s.e.m.
Figure 3(A) Venn diagram depicting the comparison and overlap of differentially expressed genes in IPF lungs and AURKB siRNA-treated fibrotic fibroblasts. The dashed box indicates genes that were up- (141 genes) or down-regulated (DN, 50 genes) in IPF lungs compared with AURKB siRNA knockdown gene expression signatures. (B) AURKB-driven genes activated in IPF were analyzed using ToppFun and visualized using Cytoscape. Red- and blue-colored circles represent genes that are up or downregulated, respectively in IPF lungs. The turquoise-colored circle represents enriched biological processes for the inversely correlated genes between AURKB siRNA knockdown and IPF. (C) Lung sections from control and TGFα mice fed with Dox food for 4 wks were stained for AURKB (green) and Ki-67(red). Merged image shows cells that co-express AURKB and Ki-67 (yellow). (D) Quantification of Ki-67+ and AURKB+ double positive cells was performed using five confocal images per mice in control and TGFα mice. Images were obtained at 40X magnification. Scale bar: 50µm. ****P < 0.00005, unpaired t-test, (n=4). (E) Proliferation was measured in primary lung resident fibroblast isolated from either IPF lung or TGFα mice and treated with either control or AURKB siRNA. ****P < 0.00005, unpaired t-test, (n=9-11). (F) Proliferation was measured in primary lung-resident fibroblasts isolated from stromal cultures of TGFα mice on Dox for 2 wks and transiently transfected with control or AURKB siRNA and stimulated with TGFα (20ng/mL) for 24hrs. ****P < 0.00005, 1-way ANOVA, (n=9-11). (G) Quantification of CCNA2 and PLK1 transcripts in human IPF fibroblasts transiently transfected with control or AURKB siRNA for 72hrs. **P < 0.005, ***P < 0.0005, unpaired t-test, (n=3). (H) Lung sections from control and TGFα mice fed with Dox food for 6 wks were stained for AURKB (green) and αSMA (red). Images were obtained at 40X magnification. Scale bar: 50µm. (n=4). (I) Quantification of apoptotic cells using Incucyte ZOOM (Caspase-3/7- positive cells) in lung-resident fibroblasts isolated from IPF and TGFα mice on Dox for 6 wks and treated with control or AURKB siRNA for 72h. **P < 0.005, ****P < 0.00005, 2-way ANOVA, (n=4). (J) Quantification of BAK, BAX and FAS gene transcripts in human IPF lung resident fibroblasts treated with either control or AURKB siRNA for 72hrs. **P < 0.005, ***P < 0.0005, unpaired t-test, (n=3). (K) Quantification of Bak, Bax and Fas gene transcripts in lung resident fibroblasts isolated from TGFα mice and treated with either control or AURKB siRNA for 72hrs. *P < 0.005, **P < 0.005, unpaired t-test, (n=3).
siRNA screen for PX domain proteins in autophagy.Figure 1.(A) HEK GFP-LC3 cells were transfected with siRNA pools targeting PX domain proteins and starved (large circles) or not starved (small circles) for 2 h, followed by fixation and counterstaining of the nuclei by Hoechst. The images were processed for high-content image analysis to quantify the number of GFP-LC3 spots per cell. The graph shows the average of three (B) Selected PX domain proteins were depleted by transfection of HEK GFP-LC3 with the four individual siRNA oligos of the pools used in A. The cells were treated, imaged, and analyzed as in A. The area of each circle corresponds to the relative amount of target mRNA as measured by qPCR. The graph shows the average of two independent experiments in triplicate with a total number of 18,000 cells. Coloring is as in A. (C) Micrographs of starved HEK GFP-LC3 cells treated with nontargeting or siSNX18-3 siRNA. (left and middle) 3 × 3 fields of cells. (right) Close-up of a few cells from the respective population. The images in the right panels are shown again in Fig. S1 B alongside cells treated with other SNX18-targeting siRNAs. Bars, 10 µm. See also Table S1 and Table S2.
Fig.Figure 4(a) Plasma levels of TNF and IL8 from patients with uncomplicated (black circles, n=14) or cerebral (red circles, n=9) malaria correlate with levels of XO-produced ROS detected in each sample. ROS is expressed as fold change over plasma from healthy controls. Uncomplicated malaria, gray circles, cerebral malaria, red circles. Linear regression (a) were performed to determine statistical significance (*p<0.05, **p<0.01). (b) Levels of XO activity in malaria patients correlate with disease severity UM (uncomplicated malaria), CM (cerebral malaria). Mann-Whitney test (b) were performed to determine statistical significance (*p<0.05, **p<0.01). (c) Plasma from malaria patients induce macrophages to secrete cytokines, which are inhibited by a XO specific inhibitor. Plasma from a healthy control (HP) and from three patients: P1 (with cerebral malaria), P2 and P3 (both with uncomplicated malaria) was pre-incubated for 30 min with febuxostat (Feb) or alone at 37ºC before addition to macrophages at 1:2 dilution in media for 30 min. Cells were washed and cytokine secretion measured in triplicates after 24 h of incubation. unpaired t-tests (c) were performed to determine statistical significance (*p<0.05, **p<0.01).
Figure 3a) Region of 1H-15N-HSQC TROSY spectra that contains Gln49 Ub resonance are overlaid: free 15N-Ub (blue), UbcH7-O-15N-Ub (black), and HHARI RING1-bound UbcH7-O-15N-Ub (red). Black arrow highlights perturbation upon conjugation to UbcH7 (black arrow) and red arrow highlights perturbation of conjugated Ub upon HHARI RING1 binding to UbcH7. b) Region of 1H-13C-HSQC spectra of 13C-UbcH7 (blue), 13C-UbcH7-O-Ub (black), and HHARI RING1-bound 13C-UbcH7-O-Ub (red) that includes the methyl (13CH3) resonance of the surface-exposed UbcH7 cross-over helix residue, Ala 110 (black arrow) is shown. The 13CH3 peak of Ala110 either broadens dramatically or shifts to an unknown position in the spectrum of 13C-UbcH7-O-Ub (black) and reappears at its position in free UbcH7 in the presence of HHARI RING1, consistent with disruption of closed UbcH7~Ub conformations. Pairwise overlays and larger spectra are provided in Appendix Fig S3. c) Regions of 1H-15N-HSQC-TROSY spectra of UbcH7-O-15N-Ub in the absence (black) and presence (red) of a RING1 domain from the RBR E3s HHARI (left) or RNF144 (middle) or a canonical RING domain of BRCA1/BARD1 (right). The perturbations on Ub due to binding of HHARI RING1 and RNF144 RING1 are remarkably similar, while binding of the canonical RING domain of BRCA1/BARD1 has no observable effect on the Ub spectrum. Gray boxes mark area expanded in a)
Intracellular poliovirus yields are not affected by lysosomal protease inhibitors.Figure 3Triplicate samples of H1-Hela cells were infected with PV at an MOI of 0.1 pfu/cell (A) or MOI of 50 pfu/cell (B). Cells were pre-treated with 20 µM leupeptin for 14 hours prior to infection and kept under treatment throughout infection. Cell-associated virus was collected at the indicated times post-infection, and virus titers were determined by plaque assay. Parallel infections were collected for Western blots of LC3 (A) or p62 (B) In (B) cell-associated virus was collected at 6 h.p.i. for plaque assay. (C) Infections were performed as in (A), then 10 µg/mL each of E64d and Pepstatin A (Pep.A) were added to the media at the time of infection. Inhibition of lysosomal degradation was confirmed by immunoblot for LC3 and GAPDH. (D) Infection at an MOI of 50 pfu/cell, with E64/Pep.A as in (C).
Fig.Figure 6Under normal growth conditions, MadR exists in equilibrium between the free and DNA-bound forms, and a basal level of desA1 and desA2 expression is maintained. DesA1 and DesA2 acts with other enzymes of the fatty acid synthase-II (FAS-II) complex to produce mycolic acids for new cell wall. Infection of macrophages and early stress cues shifts the equilibrium towards the free form of MadR and the repression of desA1 and desA2 is released. The desaturase protein levels increase, introducing double bonds that allow cyclopropanation and other modifications to alter the cell wall. These changes enable the bacteria to withstand intracellular stresses and establish infection. As infection continues and stress is sustained, MadR binds tightly to the promoter of desA1 and desA2, leading to stringent repression of the desaturases. MadR-mediated repression of desA1 and desA2 leads to irregular fatty acids of medium length and the pausing of mycolic acid biosynthesis to enter into dormancy. The DNA-bound form of MadR is shown in complex with a yet unknown co-factor that leads to repression of the desaturases.
S ribosome.Figure 3(A) Adopted secondary structure of the IRES representing the tertiary fold.(B) Atomic model of the HCV IRES RNA. IRES domains are presented as coloured ribbons, overlaid with experimental IRES density (gray, semi-transparent).(C). Molecular model of the HCV IRES (pink) with ribosomal interaction sites (coloured proteins and helices).