EMBO/SourceData huggingface dataset:
Figure 3B. Representative images of cell-cell fusion. Scale bar: 100 µm.C. Quantification of GFP+ areas. Results are mean±sd from 5 independent experiments.D. TMPRSS2 accelerates fusion. Cells were monitored by video microscopy and the GFP area was quantified over time. Left panel: one representative experiment. Results are mean±sd from 3 fields per condition. Right panel: Mean±sd from 7 independent experiments (at 12h post transfection).E. Impact of TMPRSS2 and IFITMs on the kinetics of fusion by S-expressing 293T cells. One representative out of three independent experiment is shown.
Figure 4A. S-expressing cells (Donor cells), ACE2-expressing cells (Acceptor cells) were co-transfected with TMPRSS2, IFITM or control plasmids. Cell fusion was quantified by measuring the GFP+ area after 18h. The indicated combinations were tested. The impact of IFITMs was measured in absence of TMPRSS2 (left panel), in presence of TMPRSS2 in donor (middle panel) or acceptor cells (right panel). Data are mean±sd of 4 independent experiments. Statistical analysis: One-Way ANOVA, ns: non-significant, ∗∗p < 0.01, ∗∗∗∗p < 0.0001.Impact of TMPRSS2 on IFITMs levels. B. TMPRSS2 does not decrease IFITM amounts measured by flow cytometry. 293T cells were transfected with the indicated IFITM plasmids, with or without TMPRSS2, and analyzed 18h later.C. Impact of TMPRSS2 on S and ACE2, measured by Western Blot. 293T cells were transfected with or without IFITM1, TMPRSS2, S or ACE2 plasmids, and analyzed 18h later.Impact of TMPRSS2 on S levels. D. TMPRSS2 decreases S surface levels, measured by flow cytometry. 293T cells were transfected with S plasmid, with or without TMPRSS2, and analyzed 18h later. Murine polyclonal anti-S antibodies, one serum from a convalescent COVID-19 patient (sera n°111), and two monoclonal antibodies (anti-S1 and anti-S2) were tested. Data are representative of three independent experiments.
Figure 2 A Bacterial two-hybrid assay reveals an interaction between SiaB and SiaC. The recombinant strains harboring different proteins were separately streaked on nonselective and dual-selective media (3-amino-1, 2, 4- triazole + streptomycin). NA represents the empty vector pBT or pTRG. The strain expressing LGF2 and Gal11P were used as positive controls.  B Pull-down assays confirmed the interaction between SiaB and SiaC. Cell lysates of P. aeruginosa containing pMM67EH-siaC-Flag were incubated with GST or GST-SiaB individually, and protein complexes were captured by glutathione beads.  C SPR measurements of SiaC binding at varying concentrations to SiaB. SiaC specifically interacted with SiaB with a KD of 40.1 nM. Shown are measured binding responses (black) and curve fits to a 1:1 interaction (red). Plots are representative from two experiments with similar results. RU, response units; KD, dissociation constant.  D SiaB-mediated regulation of biofilm formation is dependent on SiaC. The biofilm formation of the indicated strains was displayed with crystal violet staining (up) and quantified with optical density measurement (down).  E Bacterial two-hybrid assayreveals an interaction between SiaC and SiaA PP2C-like domain. NA represents the empty vector pBT or pTRG. The recombinant strains harboring different proteins were separately streaked on nonselective and dual-selective media (3-amino-1, 2, 4- triazole + streptomycin). The strain expressing LGF2 and Gal11P were used as positive controls.  F Pull-down assays confirmed the interaction between SiaC and SiaA. Cell lysates of P. aeruginosa containing pMM67EH-siaA-Flag were incubated with GST or GST-SiaC individually, and protein complexes were captured by glutathione beads.  G Pull-down assays confirmed the interaction between SiaC and SiaA PP2C-like domain. Cell lysates of P. aeruginosa containing pMMB67EH-siaA386-Flag were incubated with GST or GST-SiaC individually, and protein complexes were captured by glutathione beads.  H The biofilm formation of the indicated strains was displayed with crystal violet staining (up) and quantified with optical density measurement (down).
Figure 3 B MS detection of SiaB peptide L63LYLNTSSIK72 that was covalently modified with one molecule of phosphate. Extracted ion chromatograms of the doubly protonated peptide are shown with peak intensities indicating the relative amount of either the modified or unmodified peptides.  C Determination of modification sites by collision induced dissociation (CID) analysis. The MS/MS spectrum of modified L63LYLNTSSIK72 is shown. The fragment ions b6 and y6 to y9 have a mass increase of 80 corresponding to phosphorylation, suggesting phosphorylation of Thr68.  D SiaB phosphorylates and SiaA dephosphorylates SiaC in vitro. SiaA or SiaAT68A were added to the reactions containing SiaB or SiaA386 and γ32P ATP. Phosphorylated products were separated by SDS-PAGE.  E Over-expression of SiaCT68A restored the ability of ΔsiaA to form biofilm. The biofilm formation of the indicated strains was displayed with crystal violet staining (up) and quantified with optical density measurement (down). F Deletion of ΔsiaB in the ΔsiaA background strain restored the ability of ΔsiaA to form biofilm. The biofilm formation of the indicated strains was displayed with crystal violet staining (up) and quantified with optical density measurement (down).  G Production of c-di-GMP at the indicated time-point by SiaD with SiaC or SiaCT68A was determined by HPLC. To evaluate the effect of SiaB-mediated phosphorylation on SiaD DGC activity, SiaC or SiaCT68A was pretreated by SiaB in the presence of 1 mM ATP before reaction initiation.
Figure 4 C SiaCE33A partially restored the biofilm formation of ΔsiaA. The biofilm formation by the indicated strains was displayed with crystal violet staining (up) and quantified with optical density measurement (down).  D Triple mutation of E61A-Q64A-R67A is important for the function of SiaB. The biofilm formation by the indicated strains was displayed with crystal violet staining (up) and quantified with optical density measurement (down).
Figure 5 E Leu110 and Phe174 residues are important for SiaB function. The biofilm formation by the indicated strains was displayed with crystal violet staining (up) and quantified with optical density measurement (down). Data represent the means and SDs of three biological replicates. **, P<0.01 based on one-way ANOVA test.
Figure 2C In vivo Coimmunoprecipitation assay of MPK3/4/6 and ARR1/10/12. MPK3/4/6-YFP and ARR1/10/12-MYC were co-expressed in Arabidopsis protoplast cells. Protein extracts (Input) were immunoprecipitated with GFP Trap magnetic agarose beads. Immunoblots were performed with anti-MYC antibody to detect ARR1/10/12 and with anti-GFP antibody to detect MPK3/4/6.
Figure 7Four-day-old seedlings of 35S:ARR1:MYC, 35S:ARR1T553A:MYC, and 35S:ARR1T553D:MYC were transferred to 1/2 MS medium supplemented with or without 50 mM or 75 mM NaCl. After three days of salt treatment, plant phenotypes (A) were determined.
Figure 8Four-day-old seedlings of 35S:ARR10:YFP, 35S:ARR10S383A:YFP, and 35S:ARR10S383D:YFP were transferred to 1/2 MS medium supplemented with or without 50 mM or 75 mM NaCl. After three days of salt treatment, plant phenotypes (A) were determined.
Figure 9Four-day-old seedlings of 35S:ARR12:YFP, 35S:ARR12S323A:YFP, and 35S:ARR12S323D:YFP were transferred to 1/2 MS medium supplemented with or without 50 mM or 75 mM NaCl. After three days of salt treatment, plant phenotypes were determined.
Figure 10Three-day-old seedlings of Col-0, MPK3SR, MPK3SRarr1/12, and arr1/12 were transferred to 0.5 μM NA-PP1-containing 1/2 MS medium for 2 d to inhibit MPK3TG in MPK3SR and MPK3SRarr1/12 and then the plants were transferred to 0.2 μM NA-PP1-containing 1/2 MS medium supplemented with or without 50 mM or 75 mM NaCl. Pictures were taken and the elongated root length was determined 3 d later
Figure 1 A-C. Positioning of Upf1, Upf2 and Upf3 in the abundance distribution of all yeast proteins, based on the data compiled by Ho et al., 2018 (A) The distribution of abundance for the proteins identified by mass spectrometry in input (B) show the expected bias for proteins present in high copy numbersThe distribution of abundance for the proteins identified by mass spectrometry i purified samples (C), show the expected bias for proteins present in high copy numbers. Light grey colour highlights the positions of proteins that were only identified in the Upf1-TAP samples (6 replicates) and not in the total extract (3 replicates) D. Correlation of LTOP2-based protein level estimates in a total yeast protein extract with published protein abundance data (Ho et al, 2018)  E. Distribution of the intensity for the proteins quantified in association with Upf1 (LTOP2 score, log2 scale). Positioning of Upf1 is highlighted as a white rectangle while Upf2 and Upf3 are highlighted in red. The dark grey line indicates the region of intensities corresponding to ribosomal proteins F. Distribution of the protein enrichment values for Upf1 associated proteins based on LTOP2 scores and known protein abundance in a total yeast extract. Upf1, Upf2 and Upf3 positions are also highlighted as white rectangles G. A combination of the data presented in (E) and (F) as a scatter plot, to see both the amount and enrichment of proteins in Upf1-TAP purified samples. The horizontal axis represents the LTOP2 score, with the vertical axis showing enrichment over input values. Both axes use log2 transformed values
Figure 2 A-F. Enrichment values for proteins identified in tagged Upf1 (A), Upf2 (B), Upf3 (C), Nmd4 (D), Ebs1 (E), and Dcp1 (F) purifications. Tagged proteins are indicated in bold for each experiment. Black bars correspond to average enrichment values obtained in purifications done without RNase and orange bars with an RNase A and RNase T1 treatment. Error bars represent SD. Dots represent individual enrichment values for each protein in the 6 replicates for Upf1-TAP, 3 for Upf1-TAP and RNase, 6 for Upf2-TAP, 3 for Upf2-TAP and RNase, 5 for Upf3-TAP, 3 for Upf3-TAP and RNase, 4 for Nmd4-TAP, 3 for Nmd4-TAP and RNase, 3 for Ebs1-TAP, with and without RNase, and 3 for Dcp1-TAP with or without RNase. Only proteins enriched by a factor of 16 or more in one of the purifications presented here are shown. For clarity, groups of related proteins were combined (the group of Lsm1 to Lsm7 is marked as "Lsm1-7" and the values correspond to the mean of all the values found in purifications; CK2 group corresponds to Cka1, Cka2, Ckb1 and Ckb2) G. Immunoblot validation of Upf1-TAP interactions with HA tagged Nmd4 and Ebs1. Control strains did not express Upf1-TAP H. Immunoblot validation of Upf1-TAP interaction with Pat1-HA, Lsm1-HA and Edc3-HA. The purification was performed with a mix of three strains, expressing Upf1-TAP or not (control)
Figure 3 B-D. Results of purifications using Upf1-FL (B), Upf1-CH (C as bait with the x-axis showing the average enrichment value (log2 scale) for Upf1-decapping and Upf1-23 components B-D. Results of purifications usin Upf1-Cter (D) as bait with the x-axis showing the average enrichment value (log2 scale) for Upf1-decapping and Upf1-23 components. The colour of the bars illustrates the treatment used during the purification, black without RNase, and orange with an RNase treatment. Error bars represent SD. White dots correspond to enrichment values obtained in individual experiments E. Comparison of the enrichment of Upf1, Nmd4 and Ebs1 in the purification of the Upf1 fragments. The Upf1 C-terminal region (854-971) affected the association with Nmd4 or Ebs1 (Student t-test with a one-sided alternative hypothesis). We compared the enrichment of each of Ebs1 and Nmd4 between purifications of Upf1 fragments having this region (Upf1-FL and Upf1-HD-Cter, 6 experiments) and purifications of Upf1 fragments lacking the extension (Upf1-CH-HD and Upf1-HD, 4 experiments). The C-terminal region had no effect on Nmd4 enrichment (p-value ≈ 0.98), whereas there was significantly less associated Ebs1 on this small region (p-value ≈ 0.0013)  F. Western blot of input and eluates of Upf1 domains purification in a Nmd4-HA strain. The band with the # might corresponds to a dimer of Upf1-CH, bands marked with a star correspond to residual signal with the anti-HA antibodies (Nmd4). Fragments in the eluate have a smaller size because the protein A part of the tag was removed by digestion with the TEV protease. G6PDH served as a loading control in the input samples
Figure 4 A. Average enrichment of Upf1-23 and Upf1-decapping components in purified Upf1-TAP in the presence (black bars) and absence (blue bars) of NMD4. Pink and dark blue vertical lines highlight proteins of the Upf1-23 and Upf1-decapping complexes respectively. White dots correspond to individual enrichment values obtained in replicate experiments, 6 for Upf1-TAP and 3 for the nmd4Δ condition. Error bars correspond to SD  B. Average enrichment of Upf1-decapping components in Nmd4-TAP in the presence (black bars) and absence (blue bars) of UPF1. White dots correspond to individual enrichment values obtained in replicate experiments, 4 for Nmd4-TAP and 2 for the upf1Δ condition. Error bars correspond to SD  D. CBP-Nmd4 was mixed with hUPF1-HD or yUPF1-HD (all the proteins overexpressed in E. coli and purified). Protein mixtures before (input, 20% of total) or after purification on calmodulin affinity beads were separated on 10% SDS-PAGE (w/v) acrylamide gels  E. Upf1 interaction with a 30-mer 3' biotinylated RNA fragment was tested by mixing purified Upf1 helicase domain with Nmd4 and testing the fraction of recovered protein on streptavidin beads after washes with 150 mM and 300 mM NaCl containing buffer solution
Figure 5B. Scatter plot of the mean fold change of transcripts in nmd4∆ RNAseq experiment against transcript mean fold change in ebs1∆ (Pearson correlation, r = 0.66, p-value < 2.10-16). Black dots correspond to NMD substrate examples for which individual traces are shown in Fig. EV3. Dashed lines represent boundaries of five bins of equal numbers of transcripts (2046 transcripts or notable features per bin), with bin 5 containing the transcripts that were most increased in the mutant condition compared with wild typeC. Percentage of transcripts affected by UPF1 deletion (increase by at least 1.4 fold) among nmd4∆ bins, as defined in B. Differences between percentages of upf1∆ affected transcripts in bin 4 and 5 and bin 3 and 4 were significant (binomial test, p<10-24). D. Same as in C, for ebs1∆. Differences between distribution of transcripts in bin n and bin n+1 were significant (binomial test, p<10-9)E. NMD efficiency of WT, upf1∆ or double mutant strains complemented with Upf1-FL, Upf1-HD-Cter or an empty plasmid. The NMD efficiency for each strain is based on reverse-transcription followed by quantitative PCR for RPL28 pre-mRNA. A wild-type strain has 100% NMD efficiency and a upf1∆ strain has 0% NMD efficiency, by definition. Each value is an average of replicate experiments, 3 for the WT condition, 5 for upf1Δ, 3 for ufp1Δ/upf2Δ, upf1Δ/ufp3Δ and upf1Δ/ebs1Δ and 4 for the upf1Δ/nmd4Δ condition. Error bars represent SD. Dots represent values obtained in the various replicate experimentsG. Changes in the steady-state level of the reporter encoded HA-tagged protein in upf1Δ, nmd4Δ, ebs1Δ and the nmd4Δ/ebs1Δ strains were estimated by immunoblot from three independent experiments, with one example shownH. RNA decay in a wild-type and nmd4Δ/ebs1Δ strains was tested by reverse-transcription quantitative PCR specific to the 5" end of the reporter RNA at different times after transcription shut-off. The quantifications represent mean RNA amounts and standard deviation of the average (three independent experim
Figure 6 A-B. Comparison between average enrichment values for Upf1-decapping and Upf1-23 components, Lsm proteins and CK subunits in Upf1 -TAP purified samples in the presence (grey bars) or absence (blue bars) of UPF2 (AError bars represent SD. White dots represent enrichment values for individual replicates, 6 for Upf1-TAP, 3 for the upf2Δ an conditions A-B. Comparison between average enrichment values for Upf1-decapping and Upf1-23 components, Lsm proteins and CK subunits in Upf1-TAP purified samples in the presence (grey bars) or absence (blue bars) o UPF3 (B). Error bars represent SD. White dots represent enrichment values for individual replicates, 6 for Upf1-TAP, 3 for th upf3Δ conditions C-D. Evaluation of the effects of UPF2 deletion on Upf3-TAP levels (C in total extracts, in comparison with a loading control (G6PDH) was done by immunoblot C-D. Evaluation of the effect of UPF3 deletion on Upf2-TAP levels (D) in total extracts, in comparison with a loading control (G6PDH) was done by immunoblot E. Comparison between average enrichment values for Upf1-decapping and Upf1-23 components, Lsm proteins and CK subunits in Upf2-TAP purified samples in the presence (grey bars, 6 experiments) or absence (blue bars, 2 experiments) of UPF1. Error bars represent SD. The levels of expression of Upf2-TAP and Upf3-TAP proteins have been verified in this condition (Appendix Fig. S2)
Figure 7 A. Unspliced RPL28, an NMD substrate, was enriched in Nmd4-TAP purification in comparison with a control untagged strain, as measured by reverse transcription followed by quantitative PCR. Bars correspond to the mean of pre-RPL28 enrichment for 3 independent experiments, as compared with RIM1, a non-NMD mRNA. Error bars correspond to SD. The indicated p-value was computed using the Welch t-test, single-sided comparison  B-D. Distribution of Nmd4-TAP, Nog1 (marker of free 60S subunits) and Rps8 (marker of 40S, 80S and polysome fractions) in wild type (B), upf1∆ (C) and upf2∆ (D) strains, tested by immunoblot. Fractions 1, 2, 3 are light fractions, fractions 4, 5 and 6 correspond respectively to ribosomal 40S, 60S and 80S positions, fractions 7 to 12 correspond to polysomes. The percent of total signal for Nmd4-TAP in three independent replicates along with standard deviation of the values are indicated for each fraction E. Quantified relative changes in Nmd4-TAP average levels in light and monosome/polysome fractions in upf1∆ and upf2∆ strains (100% correspond to levels in the wild type strain). Indicated p-values correspond to the Welch t-test, single-sided comparison of 4 replicate experiments (individual values are indicated as dots). Error bars correspond to SD
figf1a) The number of somatic mutations discovered from each paired NPC case subjected to WES and key clinical parameters (Supplementary Table 2a) clustered according to the clinical stage. Indel, insertion or deletion. (b) Trinucleotide contexts of somatic mutations occurring at cytosine nucleotides in NPC. The font size of the nucleotides at the 3′ and 5′ positions is proportional to their frequencies (Supplementary Fig. 3b).(c) Rates of arm-level and focal SCNVs (Online Methods) across different types of malignancies. Data regarding SCNVs of the following types were summarized from Zack et al.: RCC, renal cell carcinoma; GBM, glioblastoma multiforme; UCEC, uterine cervix; COAD, colorectal adenocarcinoma; BRCA, breast; HNSC, head and neck squamous cell; OV, ovary; LUAD, lung adenocarcinoma; BLCA, bladder; LUSC, lung squamous cell.
figf2Data matrix showing frequent SCNVs, significantly mutated genes (bold; Benjamini-Hochberg FDR 0.2 calculated with CHASM) and their associated pathway or family mutations discovered in cases with NPC analyzed by WES, targeted deep sequencing (TS) or SNP array (SNP-a). The frequencies of the alterations are plotted on the right. The colors and shapes denoting different types of somatic events are also applied in Figure 5a. Columns, examined cases; rows, genes; hot spot, identical mutations have been registered in COSMIC (see URLs); LOH, loss of heterozygosity. The asterisk indicates that this tumor was also subjected to SNP array profiling. PIK3CA amplification in C666 cells has been previously described.
figf3(b,c) Significant correlations between dysregulation of chromatin modification and total number of somatic mutations (b) and overall survival probability (c). Mann-Whitney test (b) and log-rank test (c) were used to calculate statistical significance. Horizontal bars, mean value; HR, hazard ratio.
figf4(a-d) NPC cells stably expressing either negative control shRNA (Scramble) or pooled shRNAs targeting ARID1A (shARID1A) were subjected to anchorage-independent colony formation assay (a), migration assay (b), xenograft growth assay (horizontal lines, mean values) and western blot (WB) assay with the indicated antibodies (d).(e-g) NPC cells either with or without exogenously expressing ARID1A were examined by anchorage-independent colony formation assay (e)(e-g) NPC cells either with or without exogenously expressing ARID1A were examined by anchorage-independent colony formation assay (e), migration assay (f)e-g) NPC cells either with or without exogenously expressing ARID1A were examined by anchorage-independent colony formation assay (e), migration assay (f) and WB assay with the indicated antibodies (g).(h,i) NPC cells either with or without exogenously expressing BAP1 were examined by anchorage-independent colony formation assay (h)h,i) NPC cells either with or without exogenously expressing BAP1 were examined by anchorage-independent colony formation assay (h) and WB assay with indicated antibodies (i). β-actin was examined as a loading control. The data shown in a, b, e, f and h represent the mean ± s.d.; n = 3 for a, b, e and f; n = 4 for h. *P 0.05, **P 0.01. Student's t-test was used to calculate statistical significance in a-c, e, f and h; the blots shown in d, g and i are representative of three total blots run.
figf5(a) Data matrix showing alterations of genes involved in the ERBB-PI3K signaling pathway and their related targeting molecules. Considering space limitations, the numbers of targeting agents available for each protein are shown in parentheses. Drugs currently in phase 2 clinical trials are marked in blue, those in phase 3 are in purple, and FDA-approved drugs are in brown (see URLs).(b) Kaplan-Meier survival curves of NPC subjects either with or without genetic lesions in the ERBB-PI3K signaling pathway. Log-rank test was used to calculate statistical significance.
Figure 1C Relative mRNA expression of Zeb1, Acp5, and Ctsk during the differentiation from BMDMs to osteoclasts in culture (n = 3).D Western blot of Zeb1, c-Src, and Ctsk expression in BMDMs and mature osteoclasts (n = 3).F Zeb1 (red) and TRAP (green) immunofluorescence of a femur section including the growth plate (GP) and metaphysis from a wild-type mouse. The multinucleated cells associated with the surface of the bone marrow cavity (BM cavity) that are shown in the red box are further enlarged in the panels to the right. Scale bar, 10 μm.
Figure 2A Representative nanoCT of sagittal sections of femurs with 3D reconstruction of the distal femur trabeculae of 3-month-old wild-type and Zeb1ΔM/ΔM male mice are shown. The genotype of Zeb1+/+, Zeb1f/+, Zebf/f mice is defined as "wild-type" control. Scale bar, 500 μm. B Quantification of BV/TV, Tb.Th, Tb.N, and Tb.Sp as determined by nanoCT in 3-month-old wild-type and Zeb1ΔM/ΔM male mice (n = 8). CC H&E and TRAP staining of the distal femurs of 3-month-old male wild-type and Zeb1ΔM/ΔM mice. Scale bar, 200 μm. D Quantification of osteoclast number per bone surface (N.Oc/BS) and eroded surface per bone surface (ES/BS), as well as serum CTX-I and OCN levels in 3-month-old wild-type and Zeb1ΔM/ΔM male mice are shown (n = 6). EE Golden's trichrome staining illuminating howship's lacunae (arrow) of the distal femurs of 3-month-old male wild-type and Zeb1ΔM/ΔM mice were performed along with double-calcein bone labeling and confocal imaging to assess bone formation. Scale bar, 10 μm. F Quantification of MAR and BFR as assessed in 3-month-old male wild-type and Zeb1ΔM/ΔM mice (n = 6). D
Figure 3B Zeb1, NFATc1, c-Fos, c-Src, β3 integrin, Mmp9, Mmp14, and Ctsk expression as assessed by Western blot in wild-type and Zeb1ΔM/ΔM BMDMs during osteoclast differentiation (n = 3).G Supernatant CTX-I determined by ELISA (n = 6).H, I After a 6-day culture atop bone slice, phalloidin staining (red) was performed in wild-type versus Zeb1ΔM/ΔM osteoclasts (I), and actin ring area per cell quantified (H). Scale bar, 20 μm.