EMBO/sd-character-level-ner huggingface dataset:
Ykt6 phosphorylation prevents autophagosome-lysosome fusion by inhibiting SNARE bundling.Figure 4A and B) GFP-Atg8 atg1∆, GFP-Atg8 atg1∆ vam3∆, GFP-Atg8 wild type, GFP-Atg8 vam3∆, GFP-Atg8 ykt6ts or GFP-Atg8 ykt6ts vam3∆ cell containing centromeric plasmids as indicated were grown at permissive temperature (23 ºC), shifted to the restrictive temperature at 37 ºC for 2 hours before starvation for 1 hour at 37 ºC in SD-N. Representative microscopy images are shown in A). GFP-Atg8 puncta per cell were quantified from 3 biological replicates (n≥100 cells) and the mean was plotted in B). Error bars are SD. Scale bar: 5 µm. Autophagosomes were prepared from GFP-Atg8 vam3∆ pep4∆ or GFP-Atg8 ykt6ts vam3∆ pep4∆ cells containing centromeric plasmids as indicated. Cells were starved for 16 hours at the permissive temperature (23 °C) to allow formation of mature, closed autophagosomes and shifted for 1 hour to the restrictive temperature before harvesting. Vacuoles were isolated from Vph1-4xmCherry atg15∆ pep4∆ cells grown under rich conditions at 30 °C. Fusion reactions were incubated at the restrictive temperature (30 °C) for 2 hours. Representative images are shown in C). Autophagosomes were prepared from GFP-Atg8 vam3∆ pep4∆ or GFP-Atg8 ykt6ts vam3∆ pep4∆ cells containing centromeric plasmids as indicated. Cells were starved for 16 hours at the permissive temperature (23 °C) to allow formation of mature, closed autophagosomes and shifted for 1 hour to the restrictive temperature before harvesting. Vacuoles were isolated from Vph1-4xmCherry atg15∆ pep4∆ cells grown under rich conditions at 30 °C. Fusion reactions were incubated at the restrictive temperature (30 °C) for 2 hours. The graph in D) shows the mean from at least three independent biological experiments. Error bars represent the standard deviation. The indicated strains were grown to late exponential phase at permissive temperature (23 ºC), shifted to the restrictive temperature at 37 °C for 1 hour followed by starvation in SD-N for 1 hour at 37 ºC. 3HA-Ykt6 and its mutant variants expressed from a centromeric plasmid were immunoprecipitated (IP) and analyzed by anti-HA Western blotting. Co-precipitating proteins were analyzed by anti-Vam3 and anti-Vti1 Western blotting. One representative experiment out of three biological replicates is shown.
Figure 8(A) Experimental setup used for cell synchronization, auxin and EdU treatment of Cdca5 Δ/Δ sor-LAP-AID F-box mouse embryonic fibroblasts. (B) Quantification of EdU-labeled prometaphase cells after treating cells with auxin and EdU at indicated time points. Error bars denote s.e.m.; n > 200 cells per condition. (C) Analysis of chromosome spreads after auxin and EdU treatment and Giemsa staining. (D) Representative picture of the most prominent phenotype class upon auxin and EdU treatment and immunofluorescence microscopy. Scale bar, 10 µm.(E) Analysis of chromosome spreads after auxin treatment and EdU and DAPI labeling. Error bars denote s.e.m.; n > 200 cells per condition.
Figure 4(A) The cell lysates of control or BECLIN1 siRNA transfected THP-1 cells expressing GFP or GFP-IRGM were subjected to immunoblotting with indicated antibodies. (B) The cell lysates of control or ATG5 siRNA transfected THP-1 cells expressing GFP or GFP-IRGM were subjected to immunoblotting with indicated antibodies. (C-D) qRT-PCR analysis with RNA isolated from control or BECLIN1 siRNA transfected THP-1 cells expressing 3X-Flag epitope or Flag-IRGM as indicated. qRT-PCR analysis with RNA isolated from control or ATG5 siRNA transfected THP-1 cells expressing 3X-Flag epitope or Flag-IRGM as indicated. qRT-PCR analysis with RNA isolated from control or ATG5 siRNA transfected THP-1 cells expressing 3X-Flag epitope or Flag-IRGM as indicated. (G-H) qRT-PCR analysis with RNA isolated from control or p62 siRNA or BECLIN1 siRNA transfected HT29 cells expressing 3X-Flag epitope or Flag-IRGM as indicated. Co-IP analysis of the interaction between GFP IRGM with (I) Flag-p62 or Flag-NDP52 or Flag-NBR1 in HEK293T cell lysates. Co-IP analysis of the interaction between GFP IRGM with (J) Flag-Optineurin or Flag-TAX1BP1 in HEK293T cell lysates. (K-M) Co-IP analysis of the interaction between GFP IRGM with (K) Flag-cGAS, (L) Flag-RIG-I, (M) Flag-TLR3 in control siRNA or p62 siRNA transfected HEK293T cell lysates. (N) The cell lysates of control or p62 siRNA transfected THP-1 cells expressing GFP or GFP- IRGM (as indicate) were subjected to immunoblotting with indicated antibodies. (O) The qRT-PCR analysis with RNA isolated from control or p62 transfected THP-1 cells expressing 3X-Flag epitope or Flag-IRGM as indicated. (P-R) Co-IP analysis of the interaction between HA-p62 and (P) Flag-RIG-I, (Q) Flag-TLR3, (R) Flag-cGAS in the absence and presence of GFP or GFP-IRGM in HEK293T cell lysates.
MITOL lacking C-terminal 8 amino acids (MITOL∆C8) causes expansion of peroxisomes following CCCP treatment (A) HeLa cells expressing HA-Parkin and wild type 3Flag-MITOL or 3Flag-MITOL lacking C-terminal 8 amino acids (∆C8) were treated with 15 µM CCCP for 3 hours, and then subjected to immunocytochemistry with anti-Flag and anti-PMP70 antibodies.Figure 12(A) HeLa cells expressing HA-Parkin and wild type 3Flag-MITOL or 3Flag-MITOL lacking C-terminal 8 amino acids (∆C8) were treated with 15 µM CCCP for 3 hours, and then subjected to immunocytochemistry with anti-Flag and anti-PMP70 antibodies. Expanded peroxisomes were observed in MITOL∆C8-expressing cells. Higher magnification images of the boxed regions are shown in the small panel. Scale bars, 10 µm. (B) 3Flag-MITOL∆C8 with the E3-inactive Cys65Ser/Cys68Ser (CS) and H43W mutations were transfected into HeLa cells stably expressing HA-Parkin, treated with 15 µM CCCP, and then subjected to immunocytochemistry with anti-Flag and anti-PMP70 antibodies. After 3 hours of CCCP treatment, both the CS and H43W mutants localized on peroxisomes but expansion was not observed. Scale bars, 10 µm. (C) HeLa cells expressing HA-Parkin and MITOL wild-type or ∆C8 were treated with 15 µM CCCP for 3 hours, and the number of peroxisomes was counted as PMP70-positive dots per 100 μm2. In the box-plots, dots indicate individual data points, the center lines show the medians, box limits indicate the 25th and 75th percentiles as determined by the R software package, and whiskers extend 1.5 times the interquartile range from the 25th and 75th percentiles. Means and the number of samples are shown on the box and the X-axis, respectively. Statistical significance was calculated using a one-tailed Welch's t-test. The abundance of peroxisomes in cells expressing MITOL∆C8 was significantly decreased as compared with cells expressing wild-type MITOL. (D) MITOL∆C8 causes a drastic expansion of peroxisomes following CCCP treatment. HeLa cells expressing HA-Parkin and wild-type or ∆C8 MITOL were treated with 15 µM CCCP for 3 hours, and the approximate size of peroxisomes was determined as the number of pixels occupied by one peroxisome. The PMP70-positive pixels per 100 µm2 were divided by the number of peroxisomes in the same area. In the box-plots, dots indicate individual data points, the center lines show the medians, box limits indicate the 25th and 75th percentiles as determined by the R software package, and whiskers extend 1.5 times the interquartile range from the 25th and 75th percentiles. Means and the number of samples are shown on the box and the X-axis, respectively. Statistical significance was calculated using a one-tailed Welch's t-test.
Figure 3(A) Representative light microscopic images show that the in vitro cultured RPE cells exhibited a hexagonal shape. D3, D5 and D11, cultured for 3 days, 5 days and 11 days, respectively. Scale bars, 100 μm Representative immunofluorescence images showed the expression of RPE-specific markers, including RPE65 (B in the cultured RPE cells. Scale bars, 50 μm Representative immunofluorescence images showed the expression of RPE-specific markers, includin ZO-1 (C) and Bestrophin (D), respectively, in the cultured RPE cells. Scale bars, 50 μm (E) Semi-quantitative RT-PCR analysis of RPE functional markers in cultured porcine RPE cells. GAPDH was used to confirm the cDNA quality of all the samples (F) Western blotting identified three RPE markers in porcine RPE cells. GAPDH served as a housekeeping gene control (G) ELISA identified secreted VEGF and PEDF in chimeric and WT porcine RPE cells. Media were collected at 48 hours after the cells were seeded onto 12-well cell culture plates to be used for analyses. The results are representative of three independent experiments and were evaluated using a two-tailed t-test. No significant differences were identified. Data are presented as the mean ± standard error mean (SEM). WT, RPE cells cultured from the NW-8 fetus. CH, RPE cells cultured from chimeric NW-7 fetus
Regions of the major pilin involved in the multiple functions of TFP(A) Sequence conservation determined from the BIGSdb database of Neisseria meningitidis sequences is represented as a heat map (Jolley & Maiden, 2010).Figure 6Sequence conservation determined from the BIGSdb database of Neisseria meningitidis sequences is represented as a heat map (Jolley & Maiden, 2010). Regions of the protein involved in different functions as defined by this study are indicated as shaded areas. A category of mutants in the α1N amino terminal region of the pilin express numerous but short pili and fail to auto-aggregate. Pilus-pilus interactions initiating bacterial auto-aggregation fail to occur in mutations affecting the area around K140. Arrows indicate pilus retraction. When in contact with cells pili can interact through their tips (1) and then along their sides (2). Adhesion of the plasma membrane along the side of the pili mediates one-dimensional wetting and membrane protrusion formation (Charles-Orszag et al., 2018).
Figure 2Figure 2. Interaction between TrwB/VirD4 and TrwE/VirB10. Left panel: Coomassie-stained SDS-PAGE gel of the T4SS3-10+D4 complex (lane 1), T4SS3-10+D4:TrwEΔN42 complex (lane 2) and T4SS3-10+D4:TrwEΔN64 complex (lane 3). Middle panel: Western Blot analysis using αStrep antibodies to detect the TrwE/VirB10 protein within the T4SS3-10+D4 complex and its variants. Right panel: Western Blot analysis using αHis antibodies to detect the TrwB/VirD4 protein within the T4SS3-10+D4 complex and its variants.
CRISPR/Cas9 screen with a transcriptomics readout.Figure 1A Understanding the cell state landscapes of haematopoietic progenitors. (left) annotated UMAP projection of a scRNA-Seq landscape - mouse LK + LSK populations (Dahlin et al, 2018) (middle) diagram representing haematopoietic hierarchy with gradual changes in cell fate potential (color gradient) from HSCs to differentiated states (adapted from the Molecular Cell Biology, 9th edition under preparation). (right) diagram of a molecular network. B Differentiation capacity of Hoxb8-FL cells. C Projection of Hoxb8-FL transcriptome onto the LK/LSK mouse landscape. The projection score (based on nearest neighbours) reflects relative transcriptional similarity to the Hoxb8-FL state for each LK/LSK cell. For the majority of cells no neighbours are identified (grey), some cells exhibit low similarity (yellow) and a small set of cells exhibit high similarity (blue). D Schematic of the screen layout, sgRNAs were cloned into the pBA439 backbone and introduced into Hoxb8-FL cells via lentiviral infection. Cells were cultured for either 2 or 4 days, followed by sorting for cells carrying sgRNA constructs (BFP+) into small pools and subsequent small-scale RNA-Seq analysis. E Reproducibility of 2 independent experiments - correlation of observed changes in expression. Blue line indicates the linear fit with shaded areas as confidence intervals.
Figure 6(A) Anti-FTCD antibodies inhibit p97/p47-mediated Golgi membrane fusion. Golgi fragments were mixed with the indicated components (p97, 60 μg/ml; p47, 30 μg/ml; p37, 24 μg/ml; p115, 40 μg/ml) together with either anti-FTCD or anti-p115 antibodies. Results are expressed as mean+SD of five sets of independent experiments; 0% and 100% represent the buffer only (25.9% in cisternal membranes) and p97/p47 with no antibodies ('+ none', 48.8%), respectively. Asterisks indicate a significant difference at P<0.01 compared with the no antibody groups ('+none') (Bonferroni method). (B) p47(E86K, E88K), which lacks binding affinity to FTCD, does not function in p97/p47-mediated Golgi membrane fusion. Golgi fragments were incubated with p97 (60 μg/ml) and p47wt/mutant (30 μg/ml). Data are shown as the mean+SD of five sets of independent experiments; 0% and 100% represent the buffer only (27.3% in cisternal membranes) and p97+p47wt ('+p47wt', 50.9%), respectively. Asterisks indicate a significant difference at P<0.01 compared with the group in which p47wt as well as p97 were added ('+p47wt') (Bonferroni method). (C) p97(V722K,E724K), which lacks binding affinity to FTCD, does not function in p97/p47-mediated Golgi membrane fusion. Golgi fragments were incubated with the following components: p97wt/mutant, 60 μg/ml; p47, 30 μg/ml; p37, 24 μg/ml; p115, 40 μg/ml. Data are shown as the mean+SD of five sets of independent experiments; 0% and 100% represent the buffer only (29.5% in cisternal membranes), and p47+p97wt ('+p97wt'. 57.5%), respectively. An asterisk indicates a significant difference at P<0.01 compared with the group in which p97wt as well as p47 were added ('+p97wt') (Bonferroni method). (D) Panels a-e show representative EM images. Scale bar = 0.5 μm.
Figure 5 (A) Colocalisation between Importin-β proteins and tethered histone H4. Representative images for each importin are shown. Scale bar represents 10 μm  (B) Pearson's correlation analysis between tethered H3.1/H4-EGFP and Importin-β proteins. P-vales of <0.001 from a Wilcoxon rank sum test versus the mCherry alone control are indicated by brackets  (C) Phylogenetic representation of the Importin-β family from humans adapted from (O'Reilly et al., 2011). For further details see the main text. Members found to bind to either H3.1 or H4 in this study are coloured red. An asterisk indicates structural information regarding interaction with H3 (see Figure EV4)  (D) FRAP analysis of mCherry-IPO4 and mCherry-RbAp46-NES bound to tethered EGFP-H4. Scale bars represent 10 μm  (E) FRAP analysis of mCherry-IPO4 and mCherry-sNASP-∆NLS bound to tethered EGFP-H3. Scale bars represent 10 μm  (F) Time course of H3.1-EGFP release from its mitochondrial tether after co-transfection with mCherry-IPO4  (G) Time course in (D) shown as a profile that bisects the nucleus and the mitochondrial network. The location of the profile is shown as a white line in the lower right panel of (D). Profile correlation scores for each time point are shown  (H) Quantification of nuclear enrichment over time for H3.1-EGFP and mCherry-IPO4 from 5 individual cells. H3.1-EGFP values are green traces, whereas mCherry-IPO4 traces are red traces. Values for the cell shown in (F) is highlight by circles
Figure 7A. Expression of runx1/c-myb in the VDA after treatment with DMSO vehicle control (left), the PI3K/AKT inhibitor Wortmannin (WM, middle) and after joined treatment with WM and enforced NICD expression via HS at 14 hpf in Tg(5xUAS-E1b:6xMYC-notch1a;-1.5hsp70l:Gal4) embryos (right). Graph displays quantitation of results. Shown are the percentages of embryos with normal or decreased runx1/c-mybexpression for each condition. B. Expression of notch1b after treatment with DMSO vehicle control (left) or Wortmannin (WM, middle). Graph displays quantitation of results. Shown are the percentages of embryos with normal or decreased notch1b expression for each condition. C. WISH for runx1/c-myb in control injected embryos (upper left), evi1 morphants (upper right) or respectively evi1 MO with myr-AKT injected embryos with HS at 14 hpf (lower right) and evi1 MO with UAS-myr-AKT injected transgenic Tg(fli.1:Gal4FFubs3; UAS:RFP)rk embryos.D. Quantitation of results from (C). Shown are the percentages of embryos with normal or decreased runx1/c-myb expression for each condition. E. WISH for notch1b in evi1 Morpholino injected (left) and evi1 plus UAS:myr-AKT injected transgenic Tg(fli.1:Gal4FFubs3; UAS:RFP)rk embryos (right). Graph displays quantitation of results. Shown are the percentages of embryos with normal or decreased notch1b expression for each condition. F. Schematic illustration of the role of Evi1 during HSPC emergence and the dual regulation of Notch by the shh-vegf and the evi1-pAKT axis.
Figure 3(A) The indicated recombinant fragments of GST-Beclin1 were incubated with recombinant CHK2 in the presence of 32P-labeled ATP for in vitro kinase assays. MBP was used as a positive control. Ponceau staining indicates the expression of GST-Beclin 1 fragments for in vitro kinase assays. The asterisks in the blot indicate the domain of phosphorylated Beclin 1. (B) Schematic representation of recombinant fragments of Beclin 1. (C) In vitro kinase assays to test the ability of recombinant CHK2 to phosphorylate recombinant GST-Beclin 1-WT, S9093A (AA), S90A and S93A protein. Reactions were analyzed by SDS-PAGE followed by autoradiography. The asterisks in the blot indicate the phosphorylation of Beclin 1 mutants. Western blot detection of p-Beclin 1 Ser90, p-Beclin 1 Ser93 and Beclin 1 in MEFs indicated genotype in normal medium or after 1 hr HBSS starvation (D) Western blot detection of p-Beclin 1 Ser90, p-Beclin 1 Ser93 and Beclin 1 in MEFs indicated genotype in normal medium or H2O2 (500μM) stimulation (E). Western blot detection of ATM, p-CHK2 Thr68, CHK2, p-Beclin 1 Ser90, p-Beclin 1 Ser93 and Beclin 1 in H1299 cells transfected with indicated shRNA in normal medium or after HBSS starvation (F) Western blot detection of ATM, p-CHK2 Thr68, CHK2, p-Beclin 1 Ser90, p-Beclin 1 Ser93 and Beclin 1 in H1299 cells transfected with indicated shRNA in normal medium or H2O2 (500μM) stimulation (G). (H) Western blot detection of p-ATM Ser1981, ATM, p-CHK2 Thr68, CHK2, p-Beclin 1 Ser90, p-Beclin 1 Ser93 and Beclin 1 in H1299 cells pretreated with NAC for 4 h and then cultured for 1 hr in HBSS starvation.
a) Top, the synthetic cell-penetrating α-synuclein targeting peptide TAT-βsynCTM and its control TAT-βsyn.figf4(a) Top, the synthetic cell-penetrating α-synuclein targeting peptide TAT-βsynCTM and its control TAT-βsyn. Middle, immunoblots demonstrate that TAT-βsynCTM (25 μM; n = 5), but not the CTM-lacking control peptide TAT-βsyn (25 μM; n = 5), specifically decreased the targeted endogenous α-synuclein (one-way ANOVA, Tukey post hoc, P 0.001, F(3,16) = 12.435), without affecting the level of unrelated control protein PSD-95 at 4 h (bottom), and this reduction was prevented in the presence of NH4Cl (20 mM; n = 5). Sample sizes represent individual experiments from at least 3 separate primary cultures. ( (b) Top, PSD-95 targeting peptide TAT-GluN2B9cCTM and control TAT-GluN2B9c. Middle, TAT-GluN2B9cCTM (25 μM; n = 4), but not Tat-GluN2B9c (25 μM; n = 4), effectively degraded endogenous PSD-95 (one-way ANOVA, Tukey post hoc, P 0.001, F(3,12) = 18.154) without perturbing untargeted protein α-synuclein (bottom). NH4Cl rescued PSD-95 degradation. Sample sizes represent individual experiments from at least 2 separate primary cultures. Membrane reprobing for β-actin was used as an additional specificity and loading control. ΔP 0.05, **,ΔΔP 0.01 and ***P 0.001; bars represent relative mean values ± s.e.m. normalized to the saline control (arbitrarily set as 1). Full-length blots are presented in Supplementary Figure 9.
'UTR regions.Figure 5Construction of a series of luciferase reporter vectors (PGC1α full-length 3'UTR T, A, B, C fragments and PGC1α 3'UTR QRE motif sites mutant B M1, B M2, C M1, C M2 fragments). Luciferase activity assays to examine the functional QRE motif sites in the PGC1α 3'UTR affected by QKI. (n=4 biological replicates) Construction of a series of luciferase reporter vectors (UCP1 full-length 3'UTR T fragment and UCP1 3'UTR QRE motif sites mutant T M1, T M2, T M3 fragments). Luciferase activity assays to examine the functional QRE motif sites in the UCP1 3'UTR affected by QKI. (n=4 biological replicates) Based on RIP-sequencing data, the distribution of QKI-binding peaks within UCP1 and PGC1α transcript regions. RNA immunoprecipitation followed by real-time PCR. Specific primer for PGC1α 3'UTR region 1, region 2 and UCP1 3'UTR to detect these QRE motif sites region bound to endogenous QKI in brown fat tissue, and data showing the PGC1α and UCP1 transcripts abundance in QKI IP compared with IgG IP. (n=4 biological replicates) 293T cells were transfected with PGC1α and UCP1 wild type or QRE sites mutant 3'UTR fragments. 293T cells were transfected with PGC1α wild type or QRE sites mutant 3'UTR fragments. RNA immunoprecipitation (RIP) to identify these QRE motif sites region bound to endogenous QKI by using anti-QKI antibodies. The results showed that endogenous QKI interacted with full-length wild type QRE motif regions within 3'UTRs of PGC1α 293T cells were transfected with UCP1 wild type or QRE sites mutant 3'UTR fragments. RNA immunoprecipitation (RIP) to identify these QRE motif sites region bound to endogenous QKI by using anti-QKI antibodies. The results showed that endogenous QKI interacted with full-length wild type QRE motif regions within 3'UTRs of UCP1.
Figure 1(A) Schematic representation of the oxygenic state of pre- and post-natal intrauterine life of mice pups. (B) Quantitative PCR analysis of post-natal lungs for mitochondrial DNA (mtDNA). Actin was used as a normalization control. (mean ± SD, : p<0.05;: p<0.01; N=3). (C) Quantitative analysis of oxidative stress in post-natal pups of indicated age (in days) using the peroxide linked oxidative stress marker DHR-123, as described in methods (mean ± SD, : p<0.01; N=8). (D) Schematic representation of DNA damage (oxidative or DSBs) on naive DNA. (E) Immunofluorescence analysis of oxidative DNA damage (left panel) and the DNA double-strand breaks sensor kinase marker pATM (right panel) in post-natal murine lungs. Here anti-8-oxo-7, 8-dihydroguanine was used for the detection of oxidative DNA modification (8-oxoG, left panel), and anti-pATM Serine 1981 was used for the analysis of the activation of the DDR (pATM, right panel). Green cytoplasmic staining represents α-Tubulin; blue DAPI staining represents nucleus (scale 10μm). No primary antibody control served as a negative control (P14) of the staining. (F) Mean percentage of nuclei positive for oxidative DNA damage marker 8-oxoG in post-natal murine lungs, as determined by immunofluorescence analysis (mean ± SEM, : p<0.01; : p<0.001; N=8). (G) Mean percentage of nuclei positive for DNA damage marker pATM in post-natal murine lungs, as determined by immunofluorescence analysis (mean ± SEM, : p<0.01; N=8). (H) Quantitative analysis of the NAD+/NADH ratio in post-natal lungs after homogenization in extraction buffer (mean ± SD, : p<0.01; : p<0.001).
GFP-LC3 AVs are LAMP2 positive.Figure 7.GFP-LC3 AVs are LAMP2 positive. (A) 293/GFP-LC3 cells were incubated with control or β′- or α-COP siRNA for 48 h, fixed and labeled with anti-LAMP2 antibodies, followed by Alexa 555 anti-mouse antibodies. After COPI depletion many GFP-LC3-positive AVs are positive for LAMP2. Asterisk indicates cell enlarged in inset. (B) Cryosections of β′-COP-depleted cells labeled with anti-GFP (left) or anti-GFP and anti-LAMP2 (right) followed by protein A-gold as indicated. AV, autophagosomes, M, mitochondria.