EMBO/sd-character-level-ner huggingface dataset:
Generation of Ser65‐phosphoUbSchematic representation of PINK1 variants phosphorylating Ub at Ser65.Figure 1A Schematic representation of PINK1 variants phosphorylating Ub at Ser65. hPINK1, human PINK1; TcPINK1, Tribolium castaneum PINK1; PhPINK1, Pediculus humanus corporis PINK1. B Phos‐tag gel following complete conversion of Ub to phosphoUb, using GST‐PhPINK1. A Ser65 mutant Ub is not modified. C ESI‐MS analysis of pure Ub (left, mass 8,565.65 Da, reference 8,565.80 Da) and purified phosphoUb (right, mass 8,645.61 Da, reference 8,645.80 Da). The difference of 80 Da corresponds to one phosphate group. D AQUA analysis of PhPINK1‐phosphorylated Lys63‐linked hexaUb. The Lys63 peptide (K63) is modified by Ser65 phosphorylation during the time course, as observed by rise of the Lys63/pSer65 peptide (K63pS65). E AQUA analysis after 180 min as in (D) with Lys6‐, Lys11‐, Lys33‐, Lys48‐, Lys63‐, and Met1‐linked tetraUb (K6, K11, K33, K48, K63, M1). For all tetraUb chains, Ser65 is phosphorylated to greater than 80% after incubation with PhPINK1 for 180 min. F Time course analysis of autoubiquitination reactions with unphosphorylated full‐length humanParkin (hParkin) and Ub (left), a 80% Ub/20% phosphoUb mixture (middle) and 100% phosphoUb (right). G Analysis of different ratios of Ub:phosphoUb in a 120‐min ubiquitination reaction of full‐length hParkin. Parkin is activated by a mixture of Ub and phosphoUb, and is much less active in a reaction with no phosphoUb as well as with 100% phosphoUb.
Figure 1Peptide array dot blot analysis to identify LIR motifs in the indicated SNARE proteins. Amino acids for the identified LIRs from positive signals are marked on each SNARE. Amino acids are denoted as amino acid single letter codes in the blot. Schematics of the functional domains of Stx16/Vti1a/Stx6 cognate SNAREs with the positions of LIR motifs. The LIR motif marked in green in syntaxin 16 indicates established LIR based on following analyses. Co-immunoprecipitation (Co-IP) analysis of interactions between FLAG-tagged Stx16/Vti1a/Stx6 and EGFP-tagged LC3B or GABARAP overexpressed in HEK293T cells. * indicates mouse IgG heavy chain of precipitated mouse-anti-FLAG antibody. GST pull-down analysis of interactions between radiolabeled Myc-Stx16 and GST-tagged mAtg8 proteins. GST pull-down analysis of interactions between wild type (WT) or LIR-mutant (L219A/V222A) Stx16 and GST-tagged LC3C or GABARAP. Lower panel shows percentages of WT or LIR-mutant Stx16 bound to GST-LC3C or GST-GABARAP. Data shown as means ± SEM of precipitated Stx16, n = 3. GST pull-down analysis of interactions between WT or different types of LIR-mutant Stx16 and GST-tagged LC3C or GABARAP. Lower panel shows percentages of WT or LIR-mutant Stx16 bound to GST-LC3C or GST-GABARAP. GST pull-down analysis of interactions between radiolabeled Myc-Stx16 and WT or LDS-mutant GABARAP (GABARAP-Y49A and -Y49A/F104A). Lower panel shows percentages of Stx16 bound to WT or LDS-mutant GABARAP. Data shown as means ± SEM of precipitated Stx16, n = 3.
Figure 3MISTRG and MISTRG6 mice were intravenously injected with 10x106 U-2932 or RC-K8 cells at six weeks of age and monitored weekly by IVIS until the study endpoint (A). MISTRG and MISTRG6 mice were intravenously injected with 10x106 U-2932 or RC-K8 cells at six weeks of age and monitored weekly by IVIS until the study endpoint (A). The lymphoma burden at the study endpoint (six weeks p.i. for RC-K8 and four weeks p.i. for U-2932) was quantified in the spleen (B) and bone marrow (C) by flow cytometric staining for hCD45 and by ZsGreen expression. MISTRG and MISTRG6 mice were intravenously injected with 10x106 U-2932 or RC-K8 cells at six weeks of age and monitored weekly by IVIS until the study endpoint The involvement of the indicated tissues as assessed by ex vivo IVIS is shown in D (solid bars, MISTRG; hatched bars, MISTRG6), MISTRG and MISTRG6 mice were intravenously injected with 10x106 U-2932 or RC-K8 cells at six weeks of age and monitored weekly by IVIS until the study endpoint mice that have developed clinical symptoms (paralysis of hind legs) are plotted in E. F Surface expression of the IL-6 receptor α-chain (CD126) as assessed by flow cytometry of U-2932 and RC-K8 cells. Data is representative of two stainings.
The centrosome limits cytoskeleton MT density A Confocal images showing MT network in WT, akap KO, c5rap2 KO, pcnt KO and pc-ak-2KO RPE-1 cells fixed and stained with antibodies against α-tubulin (left) or EB1 (right).Figure 7Confocal images showing MT network in WT, akap KO, c5rap2 KO, pcnt KO and pc-ak-2KO RPE-1 cells fixed and stained with antibodies against α-tubulin (left) or EB1 (right). The red and yellow lines indicate the contour of cells. Confocal images showing MT network in centrinone-treated WT, akap KO, c5rap2 KO and pcnt KO backgrounds. Cells containing extra centrosomes induced by centrinone washout were also quantified (bottom panels). Quantification of α-tubulin fluorescence intensity (as a measure of MT mass polymer, C), in control and centrinone-treated WT, akap KO, c5rap2 KO and pcnt KO cells. Non-centrinone treated double KO cells and centrinone-treated WT cells after washout were also included. Scatter plots show each individual data point and horizontal black lines bars represent the mean. Quantification of number of EB1 comets per cell (D) in control and centrinone-treated WT, akap KO, c5rap2 KO and pcnt KO cells. Non-centrinone treated double KO cells and centrinone-treated WT cells after washout were also included. Scatter plots show each individual data point and horizontal black lines bars represent the mean. Quantification of α , cell area (E) in control and centrinone-treated WT, akap KO, c5rap2 KO and pcnt KO cells. Non-centrinone treated double KO cells and centrinone-treated WT cells after washout were also included. Scatter plots show each individual data point and horizontal black lines bars represent the mean. Quantification of MT density (MT mass polymer/cell area) (F) in control and centrinone-treated WT, akap KO, c5rap2 KO and pcnt KO cells. Non-centrinone treated double KO cells and centrinone-treated WT cells after washout were also included. Scatter plots show each individual data point and horizontal black lines bars represent the mean.
Figure 3(A) Targeting strategy. Top: Targeting vector pSC-floxAVKA and a part of the murine Braf locus containing exons E14-E16 (not drawn to scale). Middle: Braf locus after homologous recombination with the targeting vector replacing E15 with a loxP-flanked (floxed) minigene (MG; E15-20) segment. pA = polyadenylation signals; SA = splice acceptor. LoxP and Frt sites are indicated by red triangles and blue hexagons, respectively. Bottom: The modified Braf locus after Flp-e and Cre mediated recombination. (B) Genomic PCR with the primers indicated as red arrows in (A) showing 3 out of 9 clones being positive for homologous recombination. (C) Southern blot analysis of genomic DNA of parental W4 ES cells, wildtype MEFs and the ES cell clones #286 and #273 (with recombined B-raffloxAVKA allele). Genomic DNA was digested by AseI and analyzed using the external probe indicated in (A). (D) Genomic PCR showing Cre-mediated recombination of the BraffloxAVKA allele in vivo using the primer pair E14fwd and E15rev (indicated as blue arrows in A). (E) Electropherograms of sequenced RT-PCR amplicons generated using splenic RNA of a Braf+/floxAVKA (left) and a Braf +/AVKA;Cre mouse (right). RT-PCR amplicons were generated using the primers E14fwd and E16revNEW. Note the double peaks at the first position corresponding to the threonine/serine and alanine codons (indicated by red arrows).
Figure 4Time correlated single photon counting was used to estimate the fluorescence lifetime of mClover2. The mClover2:tagRFP-T fret pair was validated in HEK E cells with the fluorophores joined by either a long rigid or short flexible linker. Time correlated single photon counting was used to estimate the fluorescence lifetime of mClover2. STIM1 OASF expressed in live L6 myoblasts before (-) or after (+) treatment with A-769662. Time correlated single photon counting was used to estimate the fluorescence lifetime of mClover2. L6 myoblasts with S257 mutated to A or E.
Figure 5(A) CHD1 recruitment is dependent on MRE11 activity. PC3 cells were transfected with mock or siMRE11 (SmartPool) and 48 h after transfection cells were treated with NCS and chromatin fractions were isolated and analyzed by Western blot. (B) CHD1 is upstream of CtIP. PLA with γH2AX and CHD1 antibodies in mock or CtIP depleted cells after 2 h of NCS. Scale bar is 50 µm. Verification of knockdown efficiency is shown by Western blot on the right. HSC70 is shown as a loading control. Scale bar 20 µm. (C) Quantification of PLA signal from (B) represented as mean values from three independent experiments as ± SD, more than 100 cells were counted per condition. (D) qPCR analyses for chromatin accessibility at two HR-repaired sites (DSB-I and DSB-II) was analyzed by FAIRE in AsiSI-ER-U20S cells transfected with either mock or CHD1 siRNA. After 48 h of transfection cells were treated with 4-OHT for the indicated time points and processed for FAIRE. The data are represented as mean ± SD (n=3) p-values were calculated using ANOVA (0.02 and 0.03, *p ≤ 0.1). (E) Native BrdU staining of PC3 cells transfected either with mock or siCHD1 (SmartPool) were grown for 48 h and then treated with NCS for 2 h prior to staining with anti-BrdU and γH2AX antibodies. Scale bar 5 µm. (F) Quantification of Brdu positive cells from (E). The data are represented as mean ± SD from three independent experiments, more than 50 cells were counted for each condition. p-values (0.03, *p ≤ 0.1) were calculated using ANOVA. See also Figure EV5A-EV4J.
Suppression of atg4da in zebrafish leads to loss of cerebellar neurons.Fig 6Immunostaining with (A-C) anti-Pvalb7 and (D-F) anti-zebrinII antibody show loss of cerebellarPurkinje cells in atg4da morphants. (A,D) Control embryos at 4.5 dpf. (B,E) Morphants with mild phenotype show partial loss of cerebellarPurkinje cells. (C,F) Morphants with strong phenotype show either total loss of Purkinje cells or presence of few differentiated neurons, which are laterally located in the cerebellum. (G-I) Labeling of cerebellar granule cells with anti-Vglut1 antibody in control and morphant embryos. (H) Mildly affected morphants show reduced expression of Vglut1 in the cerebellum. (I) Vglut1 expression is strongly reduced in embryos showing severe phenotype. White arrowheads indicate the region of cerebellum. Abbreviations: hb, hindbrain.
Figure 1(A) HOIP, HOIL-1L, and SHARPIN co-localize with Htt-Q97 aggregates. SH-SY5Y cells co-expressing Htt-Q25-GFP or Htt-Q97-GFP (green) and HOIP, HOIL-1L, SHARPIN, or HHARI (red); DAPI (blue). Scale bar, 10 µm. HOIP co-localizes with Htt inclusion bodies in human HD frontal cortex. Perinuclear Htt aggregates visualized by immunofluorescence (B) in human HD frontal cortex. Scale bar, 10 µm (B) HOIP co-localizes with Htt inclusion bodies in human HD frontal cortex. Perinuclear Htt aggregates visualized by DAB immunohistochemistry (C) in human HD frontal cortex. Scale bar, 15 µm (C).
Figure 1(A) Pedigree of Patients 1 and 2 and their families. (B) Direct sequencing of PARN in a control, P1 and her parents. (C) Alignment of the two first conserved blocks of sequences from the DEDDh subfamily of nucleases (Uniprot accession numbers). Conserved residues are coloured and the conserved glutamine is highlighted with a red arrowhead. Secondary structures are reported on top, as observed in the experimental 3D structure of human PARN (pdb 2A1R)(Wu et al, 2005). (D) Direct sequencing of PARN in a control, P2 and her parents. (E) Aberrant splicing products detected in P2 and her mother but not in P2's father nor in a healthy control. GAPDH RT-PCR was performed as control. (F) Detection of the exon6/7 deletion by PCR with specific primers (1F/2R). (G) PARN detection in cell lysates from P1 and P2 and a healthy control. Actin was used as loading control. (H) In vitro deadenylation activity using protein extracts from control and P1 and P2 SV40T-transformed fibroblasts. Mixing protein extracts from control together with P1 or P2 eliminated the deadenylation defect whereas pairwise mixing of P1 and P2 failed to complement the deadenylation defect.
Figure 7(A) NRCFbs at passage 1 were stimulated with recombinant Fstl1 (50ng/ml) or vehicle after cultured in serum-reduced conditions (FBS 0.5%) for 24 hours. The samples were harvested at the indicated time points after stimulation. The expression of ERK1/2 and tubulin were detected by immunoblotting. Error bars represent mean ± SEM. Statistical analysis was performed by one-way ANOVA and Tukey multi comparison test (n=3 for each time point). Three independent experiments were performed. (B) Fstl1 induced phosphorylation of ERK1/2 was ablated by pretreatment with MEK inhibitor PD98059. NRCFbs were treated by PD98059 (5nM) for 30min and then stimulated with recombinant Fstl1 protein (50ng/ml) for 15min. Error bars represent mean ± SEM. Statistical analysis was performed by one-way ANOVA and Tukey multi comparison test (n=3 for each time point). Two independent experiments were performed. (C) Representative images of NRCFbs scratch assay (left) and quantified cell migration (right). NRCFbs were transfected by Fstl1 siRNA or siRNA non-targeting negative control for 12 hours followed by culturing in 0.5% FBS media for 24 hours. The confluent cell sheet was scratched and cell migration was assessed at 6 hours after the scratch. Scale bar indicates 100µm. Error bars represent mean ± SEM (n=10 for each group). Statistical analysis was performed by unpaired t-test (2-tailed). Two independent experiments were performed. (D) Fstl1-stimulation of cell migration was reversed by PD98059. Endogenous Fstl1 in NRCFbs was ablated by Fstl1 siRNA. Serum-deprived NRCFbs were treated with PD98059 (5nM) for 30 min and then stimulated by Fstl1 (50ng/ml) or vehicle. Cell migration was assessed at 6 hours after Fstl1 stimulation. Error bars represent mean ± SEM (n=7-9 for each group). Statistical analysis was performed by Kruskal-Wallis test and Dunnett's T3 test. Two independent experiments were performed. (E) Morphological changes of NRCFbs after recombinant Fstl1stimulation was assessed by immunocytochemistry. 24 hours serum starved NRCFbs was stimulated by Fstl1 (50ng/ml) or vehicle for 3 hours. PD98059 (5nM) or DMSO was added 30min prior to Fstl1 stimulation. Cells were stained with Alexa Fluor 488-conjugated phalloidin antibody and nuclei were stained by DAPI. Arrow shows lamellipodium of the cell. Scale bar indicates 50μm.
The Ig-like domain of β protein represents a new IgI fold subtype A) Dimer co-crystal structure of β-IgSF (blue) and CEACAM1-N (CC1-N; red).Figure 5Dimer co-crystal structure of β-IgSF (blue) and CEACAM1-N (CC1-N; red). Molecular structure of β-IgSF, in which each β-strand is coloured differently. The 1.5-turn α-helix shown in grey is located between the C strand and the D strand. Illustration of the secondary structure organisation of the V-set, C1-set, C2-set, I1-set, I2-set and I3-set domains. Each secondary structure is composed of varying combinations of the β-strands A, A′, B, C, C′, C′′, D, E, F, G. Disulfide bridges betwen the B strand and F strand are represented as a black dashed lines. The C-set domains lack the A′ and C′′ strands, and are subtyped into C1-set and C2-set based on presence and absence of the D strand, respectively. The I-set domains lack C′′ strand, and are subtyped into C1-set and C2-set based on presence and absence of the D strand, respectively. The IgSF fold from β protein has the I3-set domain, characterized by absence of disulfide bridge, presence of the D strand, and presence of a truncated C strand followed by a 1.5-turn α-helix. Comparison of β-IgI3 (blue) with the most similar folds; the IgI1 domain of MCS-F (turquoise) and the IgI1 domain 1 of ICAM-3 (magenta,). The molecular surface mesh of β-IgI3 residues showing protruding residues located between the C and D strands in blue.
Figure 3Immunoblots show progressive induction of HIF-1α and HIF-2α protein levels with increasing severity of hypoxia HIF-1α ChIP-seq signal intensity (averaged across two independent ChIP-seq experiments) at 0.5% hypoxia is plotted against that at 3% hypoxia for all canonical HIF-binding sites that bound at one oxygen concentration or the other or both. ChIP-seq signal was increased at 0.5% oxygen, but correlated well with that at 3% oxygen and no new sites were generated (C) HIF-2α and (D) HIF-1β ChIP-seq signal intensity (averaged across two independent ChIP-seq experiments) at 0.5% hypoxia is plotted against that at 3% hypoxia for all canonical HIF-binding sites that bound at one oxygen concentration or the other or both. ChIP-seq signal was increased at 0.5% oxygen, but correlated well with that at 3% oxygen and no new sites were generated Frequency distribution of ChIP-seq signals at 0.5% oxygen compared to 3% oxygen. The ratio of total HIF-α signal was unimodally distributed (purple line). Upper tertile HIF-α sites (solid red line) had a significantly (p = 10-7, Wilcox rank sum test) higher ratio of HIF-1β signal (dotted red line) and vice versa (blue lines) The ratio of HIF-1α to HIF-2α ChIP-seq signal for all canonical HIF-binding sites at 0.5% oxygen was plotted against that at 3% oxygen. Strong correlation in the HIF-1α to HIF-2α ratio was observed between the two oxygen concentrations
Figure 5Measurement of cellular cholesterol content (upper panel) and glucose uptake (lower panel) in HUVECs treated with VEGF-B186 for 1 h or after 15 min treatment with cholesterol-extracting methyl-beta-cyclodextrin (MbCD). Data presented as mean ± SEM from a representative experiment performed in triplicates. Statistical evaluation using one-way ANOVA and Dunnett´s multiple comparisons test, p-value: *** <0.001 (compared to untreated control). Measurement of cellular cholesterol content (upper panel) and glucose uptake (lower panel) in HUVECs treated with VEGF-B186 for 15 min alone or supplemented with soluble methyl-beta-cyclodextrin complexed with cholesterol (5, 10 or 20 μg/ml cholesterol). Data presented as mean ± SEM from a representative experiment performed in triplicates. Statistical evaluation using one-way ANOVA and Dunnett´s multiple comparisons test, p-value: * <0.05, ** <0.01, *** <0.001 (compared to control w/o cholesterol).
Figure 4(A, B) i. 15N CPMG RD data for residues in the β4 strand (T113) and the β8 strand (S154) in the absence of added peptide. CPMG data are shown for the same residues in the presence of ii. ca. 2% cHSP27-WT peptide complex or iii. ca. 2% of the cHSP27-P182L peptide complex. Uncertainties in R2,eff values are derived from the standard deviations of fitted peak intensities obtained from duplicated νCPMG values. (C) i. The association (kon) and dissociation (koff) rates for WT (red) and P182L (blue) IxI/V peptide binding to the ACD, calculated directly from the CPMG RD data. Residues that are impacted by the presence of a small amount of peptide are indicated by red (ii., WT) and blue (iii., P182L) spheres. In both cases, residues in similar ACD regions show enhanced Rex, indicative of chemical exchange at similar sites. (D) Free energy landscape of the WT (left) and P182L (right) peptides calculated from the MD trajectories as a function of the P182 or L182 φ/ϕ angles. A lower value of ΔG corresponds to a higher relative population. Select IxI/V conformations extracted from the MD simulations are shown for the indicated φ/ϕ angle pairs in red (WT MD) and blue (P182L MD). The conformation of the IxI/V motif in the crystal structure is shown in grey (X-ray) and the P182L reference structure in grey (Reference), as obtained with in silico mutagenesis using PyMol. The black arrows indicate rotations about the φ or ϕ angles. The green circle denotes the φ/ϕ angles of P182 when bound to cHSP27, measured from the crystal structure. (E) Contour plot showing the first and second principal components of a PCA for the MD trajectories for the WT (left) and P182L peptide (right). The larger spread in the P182L peptide suggests a larger sampling of the conformational landscape.
Figure 2A. The knockdown of endogenous Nox4 resulted in a substantial inhibition of tunicamycin-induced eIF2a phosphorylation in H9c2 cells, with no change in phospho-Thr980-PERK (PERK-P) levels. GADD34 levels were significantly decreased after Nox4 knockdown while there was no change in PP1 protein levels.B. Overexpression of Nox4 in H9c2 cells caused prolongation of tunicamycin-induced eIF2a phosphorylation, with minimal change in phospho-PERK levels.C,D. Mean levels of phosphorylated eIF2a relative to total eIF2a protein in tunicamycin-treated cells after Nox4 knockdown or overexpression, respectively. n=3/group. *, significant compared to baseline; #, significant comparing Nox4 knockdown (Ad.shNox4) or overexpression (Ad.Nox4) versus corresponding controls (Ad.Ctl or Ad.β-Gal, respectively). E,F. Effect of Nox4 knockdown or overexpression, respectively, on okadaic acid-resistant Ser/Thr phosphatase activity in membrane fractions of tunicamycin-treated H9c2 cells. n=4/group. *p<0.05, **p<0.01 cf. baseline; #, p<0.05, ##, p<0.01 comparing Nox4 knockdown (Ad.shNox4) or overexpression (Ad.Nox4) versus corresponding controls (Ad.Ctl or Ad.β-Gal, respectively). G,H. Nox4 knockdown or overexpression, respectively, had no effect on the phosphorylation of glycogen synthase at Ser641 (GS-P) or Histone H3 at Ser57 (H3-P) in H9c2 cells. I. Nox4-/- MEF cells (KO) showed blunted tunicamycin-induced increases in levels of phospho-eIF2a, ATF4 and ER chaperones as compared to wild-type (WT) MEFs, a response that was rescued by re-introduction of Nox4 (KO+Nox4). The latter had no effect on GS-P or H3-P levels.
Absence of PCGF3/5-PRC1 proteins from the Xist ΔB+C RNA protein interactome Scheme of the ChIRP-MS workflow performed on Xist FL (DOX and noDOX conditions) and Xist ΔB+C (DOX) at day 3 of differentiation; RBP - RNA binding protein.Figure 2Scheme of the ChIRP-MS workflow performed on Xist FL (DOX and noDOX conditions) and Xist ΔB+C (DOX) at day 3 of differentiation; RBP - RNA binding protein. Top 20 protein hits from the ChIRP-MS of Xist FL; The ranking was based on fold-enrichment of Xist FL DOX versus Xist FL noDOX; Weakly annotated protein isoforms with an Annotation score in UniprotKB < 3 (out of 5) were excluded; Fold-enrichment for Xist ΔB+C is also displayed for comparison; Light green boxes correspond to proteins as Xist interactors [13]; protein in red (RNF2/RING1B) represents a protein not found in the Xist ΔB+C interactome; Protein in light brown (TRIM71) is less enriched in Xist ΔB+C than in Xist FL. Scatter plot displaying the differences in peptide counts between Xist FL and Xist ΔB+C for the 74 out of 81 Xist-interactors with a minimum of fold-change of 2.5 in Xist FL or Xist ΔB+C; Shown is the log2 fold change of peptide counts of each mutant in DOX conditions compared with the Xist FL in noDOX conditions; proteins retrieved by both Xist FL and Xist ΔB+C ChIRPs with a proposed role in XCI such as SPEN, RBM15, WTAP, YTHDC1 and hnRNPU are indicated; light brown dots mark proteins more represented in Xist FL than in Xist ΔB+C ChIRPs, while red dots display proteins which are only retrieved by Xist FL ChIRP.
Figure 1(A-B) Primary cilia are enriched at branch points and the greater curvature of the aorta of wild type mice, schematized in (A) and quantified in (B). The color in (A) indicates which side of the aorta is quantified in (B). Numbers indicate the region of the aorta (A) whose proportion of ciliated cells is quantified in (B). Error bars are +/- 1 S.E.M and n=7 mice. (C) Aortic endothelial cilia are ablated in Tek-Cre Ift88C/- mice. Endothelial cells and cilia are labeled by staining for Pecam1 and Arl13b, respectively. Scale bars are 10μm.