EMBO/sd-character-level-ner huggingface dataset:
a) MEFs stably expressing EGFP-tagged wild-type (WT) or T240R mutant forms of Parkin as well as FLAG-tagged VAP-A were incubated in the absence or presence of CCCP (30 μM) for 24 h, fixed, permeabilized and subjected to immunofluorescence analysis with antibodies to FKBP38, to FLAG (M2) and to cytochrome c.f3(a) MEFs stably expressing EGFP-tagged wild-type (WT) or T240R mutant forms of Parkin as well as FLAG-tagged VAP-A were incubated in the absence or presence of CCCP (30 μM) for 24 h, fixed, permeabilized and subjected to immunofluorescence analysis with antibodies to FKBP38, to FLAG (M2) and to cytochrome c. The fluorescence of EGFP was also monitored directly. (b) MEFs as in a were treated with CCCP (30 μM) for the indicated times and then subjected to immunoblot analysis. (c) MEFs stably expressing EGFP-Parkin and FLAG-VAP-A were incubated in the absence or presence of CCCP (30 μM) and lactacystin (10 μM) for 24 h, fixed, permeabilized and subjected to immunofluorescence analysis with antibodies to FKBP38, to FLAG (M2) and to cytochrome c. The fluorescence of EGFP-Parkin was also monitored directly. (d) MEFs stably expressing EGFP-Parkin were incubated for 12 h in the absence or presence of CCCP (30 μM) and lactacystin (10 μM) as indicated and then subjected to immunoblot analysis. Scale bar (a,c), 10 μm.
Figure 1A. Evaluation of siRNA-mediated depletion. U2OS cells were treated with control, Plk4 or hSAS-6 siRNA and immunoblotting was performed with the indicated antibodies. Asterisk indicates non-specific bands. The positions of molecular weight markers (kDa) are shown on the right. B. U2OS cells were transfected with the indicated siRNAs. Cell peripheries are marked with dotted lines. Enlarged single cell images (marked with arrowheads in the top row) are shown at the bottom. Scale bars, 5 μm (bottom),10 μm (top). C, D, E. Quantification of the dispersion of satellite components upon depletion of Plk4 but not hSAS-6 knockdown. The results of PCM1 (C), hMsd1/SSX2IP (D) or BBS4 (E) are shown. Data represent the mean + SD (>200 cells, n=3). Statistical analysis was performed using two-tailed unpaired student's t-tests. **p<0.01, n.s. (not significant). F, G. U2OS cells were arrested in G1 and treated with control or Plk4 siRNA, followed by immunofluorescence microscopy by using indicated antibodies. Enlarged images (marked by arrowheads) are shown on the right. Quantification of PCM1 distribution is shown in G. >200 cells were counted and classified into two categories: normal (around and away from the centrosome) or dispersed. Data represent the mean + SD (n=3). Statistical analysis was performed using two-tailed unpaired student's t-tests. **p<0.01. Scale bar, 1 μm (F, right), 10 μm (F). H, I. siRNA-treated U2OS cells were transfected with empty vectors (EV) or plasmids containing Plk4 or siRNA-resistant Plk4-myc WT* or KD* and immunostained with the indicated antibodies. Cell peripheries are marked with solid lines, in which cells with yellow lines are successfully transfected (positive in myc signals), while those with white lines represent non-transfected cells. Quantification of PCM1 distribution is shown in I. Data represent the mean + SD (>200 cells, n=3). Statistical analysis was performed using two-tailed unpaired student's t-tests. ****p<0.0001, **p<0.01, n.s. (not significant). Scale bar, 5 μm (H).
Figure 5A, Live images of neurons co-transfected with SyGCaMP5 and MtDsRed or myc-ΔEF-Miro1-IRES-MtDsRed (ΔEF Miro) before and during 10 Hz field stimulation with and without TTX treatments. Scale bar, 10 m. B, Average ΔF/F0 SyGCaMP5 traces from terminals treated with TTX (red trace, ΔF/F0 = 2.5 0.5), n=10 neurons (62 terminals) and non-treated terminals (black trace, ΔF/F0 = 1.3 0.6), n=11 neurons (69 terminals) co-transfected with MtDsRed, *p<0.05, t-test. C, Average ΔF/F0 SyGCaMP5 traces from terminals treated with TTX (red trace, ΔF/F0 = 1.8 0.3) in n=7 neurons (33 terminals) and non-treated terminals (black trace, ΔF/F0 = 2.3 0.6) in n=7 neurons (32 terminals) co-transfected with myc-ΔEF-Miro1-IRES-MtDsRed; p=0.5, t-test. Experiments performed in E16 mouse hippocampal neuronal cultures at DIV 10-12. Error bars represent SEM.
Protein composition of the LAMP‐2A containing detergent‐resistant lipid microdomains at the lysosomal membrane.Figure 3(A) Lysosomalmembranes from fed ratlivers and their corresponding 1% Triton X‐114‐resistant regions, isolated as described under Material and methods, were subjected to one (left)‐ or two‐dimensional (right) electrophoresis and stained with Sypro Ruby. (B) Immunoblot for the indicated proteins of the detergent resistant (DR), intermediate (Int) and solubilized (Sol) fractions of lysosomal membranes obtained as in Figure 2.
YAP modulates the expression of the cell cycle genes regulated by NFY and induced by mutant p53.Figure 3A. SKBr3 and MDA-MB-468 cells knocked-down as indicated in the figure, were transiently transfected with pCCAAT-B2LUC (100 ng) or pmutCCAAT-B2LUC (100 ng) luciferase reporter vectors. Values are means + s.d. of three replicates from three independent experiments. B. RT-qPCR of CCNA, CCNB2 and cdk1 mRNA levels in SKBr3 cells upon transduction with si-GFP and si-YAP (left graph) or si-p53 (right graph). Values are means + s.d. of three replicates from three independent experiments. C. H1299 transfected with the indicated siRNAs, were transiently transfected with pCCAAT-B2LUC (100 ng) luciferase reporter vector together with empty pcDNA3 or mutant p53R175H. Representative western blotting to control the transfections presented in the right panel. Values are means + s.d. of three replicates from three independent experiments. D. RT-qPCR of CCNA and cdk1 mRNA levels in H1299 cells upon transfection with si-GFP or si-YAP oligos and empty pCDNA3 or mutp53R280H expression vectors as indicated in the figure. Error bars represent mean + s.d., from three biological replicates. P-values are indicated in the figures; two-tailed Student's t-test was applied throughout.
Figure 2Overall structure of OTULING281R (left, PDB: 6I9C) and OTULINC129A bound to M1-linked diUb (middle, PDB: 3ZNZ (Keusekotten et al, 2013)) and a superimposition of the two structures (right). The Cα positions of Gly281/Arg281 are shown as spheres. Close-up view of the M1-linked Ub-binding site from OTULING281R (light blue) and OTULIN's catalytic domain (blue) with M1-linked diUb bound (proximal Ub, orange; distal Ub, red) showing a clash between proximal Ub by His282 upon G281R mutation (arrow). Affinity measurements by fluorescence polarisation (FP) with recombinant catalytically inactive OTULINC129A or OTULINC129A/G281R and FlAsH-labelled M1-linked diUb. Data represent mean ± SD of one experiment performed in technical triplicate. Data are representative of three independent experiments. a.u., arbitrary units. K­D­, dissociation constant. M1-linked tetraUb hydrolysis by recombinant OTULINWT and OTULING281R using the indicated OTULIN concentrations and visualised on silver-stained SDS-PAGE gels. Data are representative of three independent experiments. First derivative of tryptophan fluorescence upon thermal unfolding of recombinant OTULINcatWT and OTULINcatG281R (1.0 mg/mL) measured by nano differential scanning fluorimetry (nanoDSF). Apparent melting temperatures (Tm) are indicated (dashed lines). Data are representative to two independent experiments.­
Figure 9In TEL+ cells, hTR, along with its chaperone proteins including NHP2, associates with hTERT to form the functional telomerase holoenzyme complex. At ALT telomeres, ATR kinase activity mitigates recovery of stalled replication forks via fork regression and repair. Likely through its previously reported interaction with KU subunits, hTR expression in ALT+/hTR- cells induces the removal of RPA from telomeres by the DNA-PK/hnRNPA1 complex. The reduced RPA-p-RPAS33 abundance at ALT telomeres, in turn, reduces RAD51 recruitment and increases replication fork collapse events. These collapsed forks provide the substrate for break-induced telomere synthesis that concomitantly leads to POLD3-dependent C-circle production. If left unrepaired, collapsed forks can be further marked by 53BP1 in a process regulated by NHP2. Finally, hTR has a second important non-canonical, anti-apoptotic function as previously described (Gazzaniga & Blackburn, 2014), in both TEL+ and ALT+ cell lines.
FOXP2 expression is regulated by flow.Figure 2Whole-mount immunofluorescence of embryonic mesenteries of the indicated developmental stages. Note induction of FOXP2 expression at E17. Whole-mount immunofluorescence of E18 mesenteries fixed immediately after dissection (left panel) or after 24 h of ex vivo culture (right panel). Note loss of patterning of PROX1high valve LECs and downregulation of FOXP2 expression in flow-abrogated vessels after ex vivo culture. Immunofluorescence (C) and qRT-PCR analysis (D) of HDLECs grown under static conditions or exposed to OSS for 48 h (n = 3 independent experiments). Data are presented as mean ± SD. P, Student's t-test.
Figure 10(A Immunostaining of GFAP with LAMP1 and Cath D in the spinal cord sections from 5-month-old WT, Tmem106b-/-, Grn-/-, and Tmem106b-/-Grn-/- mice. Scale bar = 5 µm. B) Immunostaining of IBA1 with LAMP1 and Cath D in the spinal cord sections from 5-month-old WT, Tmem106b-/-, Grn-/-, and Tmem106b-/-Grn-/- mice. Scale bar = 5 µm.
Figure 3A Western blot analysis showing dynamic expression patterns of POU5F1 and METTL5 during the indicated time points of EB induction. α-TUBULIN was used as a loading control. B Histogram showing the threshold cycles of qPCR (qPCRCT) for detecting m6A1832 site in 18S rRNA during the indicated time points of EB induction. Data are shown as mean ± SD from three biological replicates. Student's t test, two-tailed. ns, not significant; *, P<0.05. C Immunostaining analysis of the expression of pluripotency marker POU5F1(left), endoderm marker FOXA2 (middle) and neuroectoderm marker NESTIN (right) in control and Mettl5 KO EBs at different time points, respectively. DAPI (blue) was used as a nuclear counterstain. Scale bars represent 100 μm. D Quantification of the percentages of positive cells shown in (C). Quantitative analysis was based on at least three independent experiments. Data are represented as mean ± SD. Student's t test, two-tailed. **, P < 0.01; ***, P<0.001. E RT-qPCR analysis of the expressions of pluripotency and lineage-specific markers in Day7 EBs. Data are represented as mean ± SD from three biological replicates. Student's t test, two-tailed. ns, not significant; *, P < 0.05; **, P < 0.01; ***, P<0.001. F Western blot analysis showing pluripotency (POU5F1) and three germ layer markers (FOXA2, T and NESTIN) expression in Day7 EBs. α-TUBULIN was used as a loading control.
Figure 8A. hTR and NHP2 mRNA expression in U2OS-hTR cells 72 h post-transfection with siLuc or siNHP2, normalized to ACTB mRNA and to SI14/TEL+ cells (n=2). Data information: All scale bars: 5 μm. Data are shown as mean ± SD, with the red line marking the mean value. B. Western blot showing NHP2 protein levels in the indicated cells treated with siLuc or siNHP2, 72 h post-transfection. β-Actin served as loading control. C. Representative images for co-localization between p-RPA32S33 (green) and telomeres (red FISH probe) in U2OS-hTR cells treated with control siLuc or siNHP2, 72 h post-transfection. White arrows indicate co-localization events. Quantification of images is shown on the right. Each dot indicates the number of co-localization events per nucleus (n=2). Statistical analyses were performed with Student's two-tailed unpaired t-tests with Welch's correction for normality of distribution. Data information: All scale bars: 5 μm. Data are shown as mean ± SD, with the red line marking the mean value. D. Representative images for TIF quantification: co-localization between 53BP1 (green) and telomeres (red FISH probe), measured 72 h post-transfection with siLuc or siNHP2 in cells further treated with either DMSO or Doxorubicin (DOXO, 1.5 μM) for 2 h. White arrows indicate TIF. Quantification of TIF is shown on the right. A total of at least 100 nuclei were scored from two independent experiments. Each dot represents the number of TIF per nucleus. Statistical analyses were performed using one-way ANOVA with post-hoc Games-Howell's test for multiple comparisons. Data information: All scale bars: 5 μm. Data are shown as mean ± SD, with the red line marking the mean value. E. Western blot analyses in U2OS and U2OS-hTR cells treated with the indicated siRNAs, 72 h post-transfection to detect total protein levels using the indicated antibodies. β-Actin and Vinculin served as loading controls. F. Representative images for 53BP1 foci formation in U2OS and U2OS-hTR cells, 72 h post-transfection with siLuc or siNHP2, exposed to 1 Gy irradiation and fixed at various time points post-irradiation as indicated. G. Quantification of images shown in (F). Each dot represents the number of 53BP1 foci per nucleus. A total of 114-140 nuclei were scored from two independent experiments. Statistical analyses were performed using two-way ANOVA Mixed effect model. Data information: All scale bars: 5 μm. Data are shown as mean ± SD, with the red line marking the mean value.
Glycolysis and pyruvate metabolism play an important role following cardiac injury.Figure 1(a) 30 and 150 days post fertilization (dpf) zebrafish ventricles were isolated and relative protein levels determined (n = 3). (b) KEGG over-representation analysis for selected categories or upregulated proteins in 150 dpf hearts compared to 30 dpf hearts. (c) qPCR analysis of mRNA levels of glycolytic enzyme genes in 5 dpci remote and wound border cardiac tissue (n = 2-3 technical replicates using pooled cDNA from 10 ventricles for each condition (n = 2 for pkmb and pdk4, and n = 3 for the other genes)). d, Immunostaining of heart sections for PCNA and MEF2 in 5 dpci animals treated with PBS, 2-DG or DCA; magnified view of area in white boxes shown below; white dashed lines mark the wound border; arrowheads point to PCNA+ CMs; percentage of PCNA+ CMs in the border zone shown on the right (n = 4-5 ventricles). e) Immunostaining of heart sections for MEF2 N2.261 and MEF2 in 5 dpci animals treated with PBS, 2-DG or DCA; magnified view of area in white boxes shown below; white dashed lines mark the wound border; arrowheads point to N2.261+ CMs; percentage of N2.261+ CMs in the border zone shown on the right (n = 4-5 ventricles).
Figure 8Saturating MET currents recorded from P6 Clrn2clarinet/+ (A) and Clrn2clarinet/clarinet (B) apical-coil OHCs by applying sinusoidal force stimuli of 50 Hz to the hair bundles at −121 mV and +99 mV. The driver voltage (DV) signal of ± 40 V to the fluid jet is shown above the traces (positive deflections of the DV are excitatory). The holding potential was −81 mV. Extracellular Ca2+ concentration was 1.3 mM. Arrows and arrowheads indicate the closure of the MET currents (i.e. resting MET current) elicited during inhibitory bundle displacements at hyperpolarized and depolarized membrane potentials, respectively. Dashed lines indicate the holding current, which is the current at the holding membrane potential. Average peak-to-peak current-voltage curves recorded from Clrn2clarinet/+ (grey, P6, n=7) and Clrn2clarinet/clarinet (red, P6-7, n=9) apical coil OHCs. Resting open probability (Po) of the MET current at the membrane potential of −121 mV and + 99 mV from apical- (D) and basal-coil (E) OHCs. Number of OHCs investigated is shown above the columns. Saturating MET currents recorded from a P7 Clrn2clarinet/+ (F) and a P8 Clrn2clarinet/clarinet (G) apical-coil IHC using the same experimental protocol described above. Average Po of the MET current measured in apical coil IHCs at the membrane potential of −121 mV and + 99 mV from Clrn2clarinet/+ (P7, n=3) and Clrn2clarinet/clarinet (P7-8, n=6) apical-coil IHCs.
Maintenance metabolism alone cannot explain non-division.Figure 3Linear decomposition of the TI feedrate (f) from data in Figure 2A separated the division (Ψ /Yx/s) and maintenance terms (ms): $$f = \frac{1}{Y_{\frac{X}{S}}}\psi + m_{s}$$ For the division term, the division rate (Ψ, units of 1/h • [number of new and existing cells]/[number of existing cells]) was calculated to be the slope after the lag ends (inset). For each pulsing system, the calculated yield (Yx/s, units of g DCW/mmol glucose • [number of new and existing cells]/[number of existing cells]) was constant and the extrapolated maintenance term (ms) was not significantly detected (ms = -0.1 ± 0.1 mmol/g/h for spin flask system and ms = 0.006 ± 0.1 mmol/g/h for the plate reader setup)
Spheroids and organoids show the same protein expression pattern, independently of culture stage/passage.Figure 5Microscopic images of fetal organoids at day 3, 13, 20 and 30 of culture. Scale bars: 500 µm. Percentage of fetal spheroids decreases during culture (n=3 individual wells from single organoid culture (see material and methods); experiment was repeated in ten independent organoid cultures with similar results). Immmunohistochemistry of fetal organoids for C Ass1 D Sis and E Arg2. Quantification of 3 slides per staining, 7 to 10 organoids / spheroids per slide. Scale bars: 50µm.
Glucose pulses induce brief, heightened protein and nucleic synthesis in non-dividing E.Figure 4The spin flask system for glucose pulsing was connected to a real-time metabolomics platform. Traces of exemplary ions are shown that correspond to hexose phosphate, guanine, phenylalanine, and hypoxanthine for pulsing at non-division supporting frequencies of 0.06, 0.12, and 0.18 mmol/g/h. The TI feedrate is abbreviated as f (units: mmol glucose/g dry cell weight/hour). Glucose pulses are indicated by the grey bars, and the pink region shows a no pulse control. Dots are ion intensity measurements. Solid lines are a moving average filter of the measured ion intensity. For clarity, dots are not shown for f = 0 mmol/g/h condition A metabolic scheme describing the propagation of fed glucose. Pulsed glucose is hypothesized to pass through central carbon metabolism and then be converted to downstream pathways including amino acid synthesis and nucleic acid synthesis. For nucleic acid synthesis, glucose is converted to the intermediate PRPP, which then can combine with nitrogen bases to form nucleotides for nucleic acid synthesis. Different pathways can be blocked with antibiotics Influence of antibiotics that inhibit macromolecular synthesis at the non-division TI feedrate of 0.18 mmol/g/h. Antibiotics were added one minute after the second pulse (yellow region). Four different ions are shown corresponding to glutamate, phenylalanine, guanine, and thymine. Chloramphenicol (blue) inhibits protein biosynthesis, rifamycin (orange) inhibits RNA polymerase, and azidothymidine (AZT; red) inhibits DNA synthesis
Figure 4Mitochondrial translation products were radiolabelled with [35S]methionine after siRNA-mediated depletion of ACAD9 in wild type and MITRAC15-/- cells. Cell lysates were analyzed by SDS-PAGE and digital autoradiography. For quantifications the signal intensity of ND2 was normalized to ATP6 and the relative ND2 stability was calculated by relative chase ND2 signal/relative pulse ND2 signal. (error bars indicate SEM from three biological replicates; *p < 0,05; **p < 0.01 ***p < 0.001; unpaired t-test). FLAG-immunoprecipitation was performed in mitochondrial extracts from MITRAC15FLAG-expressing cells after siRNA-mediated down regulation of ACAD9 and pulse radiolabeling. SDS-PAGE followed by autoradiography was used to analyze eluates. Relative signal intensity of ND2, ND3 and ND4L were normalized to ATP6 (total) or isolation efficiency (eluate). Total 2 %, Eluate 100 %. Error bars indicate SEM from three biological replicates; **p < 0.01; unpaired t-test. After C12orf62 down regulation, [35S]methionine labelling was performed. During labeling mitochondrial translation was inhibited with puromycin (pur) (2 µg/ml). MITRAC15FLAG interacting nascent chains were isolated by FLAG-immunoprecipitation from cell lysates. Eluates were subjected to SDS-PAGE, analyzed by digital autoradiography. Total 2 %, MITRAC15FLAG eluates 100 % (in case of C12ORF62FLAG, 25% of eluate was loaded as a standard). Red asterisks, accumulating nascent chains of ND2. The accumulating nascent chains of ND2 of lane 12 is presented in a magnification. F1-F3 mark nascent chains of COX1 [18]. HEK293T cells were pulse labelled with [35S]methionine in the presence of puromycin (2 µg/ml). During puromycin treatment, cells were incubated for 5 min and 10 min in medium lacking [35S]methionine. Anti-FLAG immunoisolations were performed as described and eluates analyzed as described in Fig. 4C. Total 1 %, Eluates 100 %. The signal of ND2 was graphed after normalization against the COX2 signal and the signal of mature ND2 in the 5 min chase sample was set as 100 % (error bars indicate SEM from three biological replicates; *p < 0,05; paired t-test). Red asterisks, accumulating nascent chains of ND2.
Changes in cell cycle dynamics during regeneration (A) UMAP projection with inferred cell cycle phase for each cell (B) Bar plot showing the proportion of cells in G1, G2/M and S phase of clusters of progenitor cells (prog.Figure 4(A) UMAP projection with inferred cell cycle phase for each cell (B) Bar plot showing the proportion of cells in G1, G2/M and S phase of clusters of progenitor cells (prog., expressing sox2 and sox3) and differentiating progenitors (diff. prog., expressing neurod1, neurog1) and neurons (neur., expressing snap25). The total does not always amount to 100% as some clusters have cells from both 0 and 3 dpa. The bar boxed in red represent the foxm1 positive cluster and the cluster numbering refers to the cluster identity defined in Fig 3G. (C) Representative sections labelled with an anti-PCNA antibody (red) and DAPI (blue) at the indicated day after amputation (dpa). The white arrowheads point to cells in S phase in the spinal cord and the yellow arrowhead at cells in G1, G2 and M phases. The right panels correspond to the inset indicated as a white box in the middle panels. (D) The ratio of PCNA+ per total number of cells (DAPI) in the spinal cord was determined at the indicated times after amputation (n=3, with a mean of x sections per data point). (E) The PCNA+ cells were then distributed in G1/G2 (diffuse signal), S (punctated signal) or M phase (condensed chromatin) at the indicated stage of regeneration.
Lysosomes containing a mutant LAMP‐2A unable to move into discrete lysosomal membrane regions show enhanced CMA activity.Figure 8(A) Lysosomes from mouse fibroblasts transfected with wild‐type hLAMP‐2A and maintained in the presence (Serum+) or absence (serum−) of serum were collected by centrifugation and subjected to Triton X‐114 extraction, sucrose density gradient centrifugation and immunobloting for human (hL2A) or mouse (mL2A) LAMP‐2A. Lane 1: homogenate. (B) Amino-acid sequence of the transmembrane and cytosolic region of hLAMP-2A and the mutations performed. Replaced amino acids are shadowed. (C) Lysosomes from mouse fibroblasts transfected with the indicated forms of hLAMP‐2A and maintained in the presence of serum were processed as in (A). (D) The percentage of total lysosomal hLAMP‐2A present in each fraction was determined by densitometric quantification of immunoblots as the ones shown here. Values, corrected for the amount of mLAMP‐2A in each fraction, are mean+s.e. of 3-4 experiments. (E) Changes in hLAMP‐2A distribution induced by serum removal. Values are expressed as times the values in cells maintained in the presence of serum and are the mean of two experiments. Changes in the three nonDR regions are shown together (no DR). (F) Proteolysis of a pool of 3[H]labeled cytosolic proteins by intact (left) or disrupted (right) lysosomes isolated from untransfected mouse fibroblasts (none) or fibroblasts transfected with wild‐type (WT) or the indicated mutant forms of hLAMP‐2A. Values are the mean+s.e. of two experiments with triplicate samples. (G) Part of the lysosomes from (F) was treated with MBCD before the incubation with the radiolabeled proteins. Values are expressed as percentage of degradation by untreated lysosomes and are the mean+s.e. of two experiments with triplicate samples.