EMBO/sd-character-level-ner huggingface dataset:
Immunofluorescence staining for (B) VIM and (C) β-catenin in RAD21KD-SNU16 cells. The indicated cells were immunostained with antibody specific for VIM or β-catenin, and DAPI. Each image represents three individual experiments.
Occupancies of Pol II at the myogenin locus in C2C12 myoblasts (MB, shown in blue) and myotubes (MT, shown in red). Myoparr is located immediately upstream from the myogenin gene.
(Left) Confocal analysis of LAMP2 (red) and LC3B (green) in GSC#9 treated for 4 and 16 hours with vehicle (DMSO) and MPZ (20 µM). Nuclei (DAPI) are shown in blue. Scale bars: 10 μm. (Right) Super-resolution imaging (SIM, Structured Illumination Microscopy) of LAMP2 (red) and LC3B (green) staining in GSC#9 treated for 16 hours with vehicle (DMSO) or MPZ (20 µM).
E. Ribosomal pull down shows lack of occupancy of ribosomes on veal2. fli1a and actb were used as positive controls.
(D) The mRNA expression of IL-10 in islet grafts at day 5 post islet transplantation was examined by qPCR. Data shown are the mean ± SEM (n=4 per group) and a one-way ANOVA was performed; **P<0.01, ***P<0.001.
A. Association of IDAP2 with hyper-DMR loci. The DT loci are shared hyper-DMRs between idap2-1 and idm1-1. ChIP was performed in the wild-type and IDAP2-3Flag transgenic plants with an anti-Flag antibody.
Cellular viability expressed as number of viable colonies following Cas9-induced gene editing of NUP58 in WT cell line and in a cell line stably overexpressing KPNB1-KPNA4-eGFP (KAPs).
C, D CY showed superior antitumor activity compared with bendamustine, SAHA, and other chemotherapeutic drugs in mice transplanted with BCR-ABL ALL cells. P-values of CY versus other drugs: NT (P = 5.02E-06) (C), SAHA (P = 4.45E-06), Bend (P = 5.18E-06), NT (P = 1.20E-05) (D), VCR (P = 1.13E-05), Dox (P = 8.08E-06), AraC (P = 7.62E-06), and CTX (P = 1.13E-05). Survival statistical analysis was done with the Mantel-Cox (log-rank) test of GraphPad Prism.
NE4C cells were co-transfected with NRX-Flag and DVL1-Myc plasmids and treated with different concentrations of Hcy (E) The relative amount of DVL1 that coimmunoprecipitated (co-IPed) with NRX-Flag was determined (n=3). Data are presented as the mean ± SEM and were compared using an unpaired Student's t test. nsnot significant, *P ≤ 0.05, **P ≤ 0.01, ***P ≤ 0.001. One-way ANOVA with Dunnett's correction was used for multiple comparisons.
G, H, Signal recovery rate (t1/2; G) and proportion of the initial signal recovered (%; H) of GFP-tagged isoforms of SnRK1α in root tip cells of WT and tsn1 tsn2 seedlings expressing ProUBQ:GFP-SnRK1α1 and ProUBQ:GFP-SnRK1α2 after HS (60 min at 39°C). nd, not detected. Upper and lower box boundaries represent the first and third quantiles, respectively; horizontal lines mark the median of at least seven replicate measurements, and whiskers mark the highest and lowest values. The experiment was repeated three times with similar results. P values denote statistically significant differences for comparisons to WT plants (two-tailed t-test).
(I) Bacterial counts recovered from the blood and brain of EGFR conditional knockout (n = 5) and control mice (n = 5) 1 h after intravenous inoculation with strain K79.
AAV-BR1 vector harboring the luciferase gene under control of the CAG promoter was administered intravenously (5x1010 genomic particles/mouse, age 8 weeks). Long-term transgene expression was analyzed by in vivo bioluminescence imaging at 16 time points during a 665-day period (n = 2 animals). Original images of analyzed animals (above) and quantification of luminescence in the brain as the region of interest = ROI (bottom).
A. Immunoblot analysis of chromatin fractions of U2OS cells transfected with indicated siRNAs and treated or not with HU.
A) Real-time PCR analysis of Lamp1 transcript (n=3/group). Black: untreated WT; grey: rapamycin-treated WT; red: untreated Cox15sm/sm; blue: rapamycin-treated Cox15sm/sm. Error bars represent SEM. The asterisks represent the significance levels calculated by Student's t test **p=0.008, *p=0.038
(H-K") IF on cross-sections of E13.5 optic stalks (OS), and E18.5 and P7 optic nerves (ONs) with Nr2f1 (red) and Glast (green, astrocytic progenitors in H-H''), NF1A (green, astrocytes in I-I'') or Sox10 (green, oligodendrocyte precursors in J-K'') showing Nr2f1 expression in both astrocytic and oligodendrocytic lineages. Arrowheads point to double labeled cells. Scale bars: 50µm for mouse sections
Huh-7 cells were first starved with serum free medium and then incubated with oleic acids for 12 hours. Condition 1 (control), the cells were not treated with BFA at any time point (left column). Condition 2, the cells were incubated with both 5 μg/ml of BFA and oleic acid incubation for 6 h and then in oleic acid alone for 10 h (middle column). Condition 3, the cells were treated with 5 μg/ml of BFA starting at 12 hours after oleic acid incubation (right column). Bar = 10μm.
Cellular and mitochondrial ROS in DC and age-matched healthy control cells in the scramble and CD38 knockdown DC cells (D) were measured by flow cytometry from three replicates.
B, SEZ6 constitutive KO neurons were transduced with SEZ6 constructs. SEZ6FL and SEZ6Δcyto were detectable as two bands corresponding to mature (higher) and immature (lower) forms of SEZ6. No difference in the apparent molecular weight was detected because the high percentage of the gel used (12%) and the small C-terminal deletion (39 amino acids). SEZ6ecto was present as the immature band in the neuronal lysates SEZ6CTF (with HA and Flag-tags) was detected at the expected low molecular weight. Additionally, the C-terminal fragment generated from SEZ6FL by BACE1 cleavage was detected. Due to its lack of an HA-tag, it had a lower molecular weight than SEZ6CTF. The C-terminal fragment generated from SEZ6Δcyto upon BACE1 cleavage was not visible because of its low molecular weight. GluK2/3 glycosylation was rescued when SEZ6FL, SEZ6Δcyto and SEZ6ecto were expressed in the neurons, but SEZ6CTF was not able to rescue the phenotype. Color coding for asterisks is the same as in figure 4A. Representative blot of 3 independent experiments.
Cells were treated with CTRL or p62 siRNA, then infected for 24 h. Immunoprecipitation experiments were performed using antibodies to FK2 or nonspecific IgG controls. Immunoprecipitated proteins were revealed using anti‐capsid antibody (G).
(g,h) Death of Ifng−/− and Irgm1−/−Ifng−/− CD4+ T cells in the presence or absence of wortmannin or Ly294002 (g), assessed by flow cytometry with propidium iodide staining at 48 h after IFN-γ exposure. Data are representative of three independent experiments (mean and s.d. of triplicate cultures).
(A) Separation of mock and proteinase K-treated HeLa nuclear extracts by sucrose density gradient ultracentrifugation followed by NTRAS detection using RT-qPCR. Fractions 1 and 14 represent top and bottom of the gradient, respectively (n = 1).
I. Association of endogenous Rabl2-GTP with IFT-B. Mouse testis lysates with or without 1 mM GTPγS were subjected to sucrose gradient ultracentrifugation. Fractions were collected from top (low MW) to bottom (high MW). Note the obvious enrichment of Rabl2 in fraction #16 in the presence of GTPγS.
confocal images of the NMJ on larval muscles 6 and 7 in segment A3, stained with anti-HRP (magenta) and anti-P-Mad (green in B, C) or anti-Dlg (green in D-K). (B) btz2/+ control; (C) btz2/Df(3R) BSC497.
A. Analysis of SCAI-interacting proteins in Xenopus egg extracts. Volcano plot shows enrichment of proteins in both SCAI-C and SCAI-N immunoprecipitates (IPs) compared to an IgG control, plotted against the P-value (n=4 independent experiments; permutation-based FDR<0.01, s0=2).
C. Anti-HA IP of wt- and F/H-BAZ2A-ESC+2i and ESC+serum. Western blot shows the interaction of BAZ2A with SNF2H, TOP2A and SMC1a.
Scatter plots showing PSI values of control cells (siCont), Srsf3-silenced cells (siSrsf3; left panel), and both Srsf3- and Hnrnpk-silenced cells (siSrsf3 + siHnrnpk; right panel). The PSI values of all internal exons are plotted. Yellow dotted lines indicate ΔPSI = 0.2 and -0.2. Skipped and included exons (|ΔPSI| > 0.2 and Bayes factor > 10) by siSrsf3 are indicated in red and blue, respectively. Note that exon skipping and inclusion are partly mitigated by an additional knockdown of hnRNP K (right panel).
(C) 293T cells were transfected S proteins with each variant-associated mutation for 24h and stained with biotinylated ACE2 and fluorescent streptavidin before analysis by flow cytometry. Left Panel: Representative ACE2 binding dilution curves for the Delta variant in relation to Alpha and D614G. Right Panel: EC50 values (concentration of ACE2 needed for 50% binding) for Alpha for the Delta variant.
F. Lysates of cells KYSE150 and KYSE150HSPH1-/- cells exposed to the indicated temperature conditions (aTT scheme and heat shock) were obtained and polysomes were isolated by centrifugation through a 30% sucrose cushion. Whole cell lysates (left panel) and the polysomal pellets (right panel) were assayed by immunoblotting for the levels of HSPH1, HSPA1 and proteasome subunits.
B Stable U2OS cell lines were doxycycline-induced to express myc-tagged p97 wild-type or disease-mutants as indicated. Induced parental cells served as control (U2OS -). Cells were treated with LLOMe for 1h and chased for indicated time before fixation. Percentage of cells with Gal3-positive vesicles was quantified from three independent experiments. Comparable expression levels were verified (see Figure EV2A).
(B) 786-0 cells were transfected with siRNA targeting RNF213, CHFR or TRIM27 for 48 hours and then were subjected to aa starvation for 12 hours. WB was performed using the indicated antibodies.
(E) Western blot of total and mitochondrial fractions of Stat3+/+, Stat3-/- cells and two MLS-Stat3 clones cultured in 2i+LIF. The nuclear protein TRIM33 and mitochondrial marker TOM20 confirmed successful mitochondrial isolation. Note that MLS-Stat3 is enriched in the mitochondrial fraction, suggesting correct localization of the fusion protein. See also Appendix Figure S7B.
(C) Ribbon representation of a model structure of the p38IP-T1B (pink) and TAK1 (green).
(D Kaplan-Meier curves for overall survival of HCC patients stratified by TFAM expression. (F Kaplan-Meier curves for overall survival of HCC patients stratified by nuclear F-actin positive rates.
B. Cognitive score measured in the same mice reveals cognitive decline between 15 and 16,5 months of age (p value 0.0079). Number of biological replicates = 10/group, unpaired two-sided Wilcox rank test.
(C) Quantification of collagen I gel contraction (calculated based on photographed gels using the formula 100*(well diameter - gel diameter)/well diameter) induced by fibroblasts in presence or not of tumour cells , or by hCAF in presence or not of FAK inhibitor (FAK-I, 1µM)
G. PRMT6 inhibitor reduces arginine methylation of wildtype SIRT7, but not RK/RF mutants. Wildtype SIRT7 or its RK/RF mutants were stably expressed in MEF cells. After treating cells with or without PRMT6-specific chemical inhibitor (PRMT6i) for 24 hrs, SIRT7 was immunoprecipitated and blotted with R388-specific methylation antibody
(A) Confocal micrographs of LC3-Listeria colocalization in WT and Clec12a−/− BMDMs at 1 hr post-infection. The scale bars represent 10 μm. (B) Quantification of LC3-Listeria colocalization in WT and Clec12a−/− BMDMs. Data shown represent mean ± SD of n = 3 independent experiments; unpaired t test. ∗∗p < 0.01.
(C) ROC analysis comparing AUC values of CSF p-tau235, p-tau231 and p-tau217 discriminating A+T+ from A-T-. However, all three assays had statistically the same accuracy when distinguishing A-T- from A+T+.
Representative IF images of control and Lats1/2 dKO airways at indicated time points post tamoxifen treatment. Tomato (for Scgb1a1 lineage, red), CC10 (green), AQP5 (for AT1 cell, white), and DAPI (blue). Scale bar, 100μm. Quantification of Scgb1a1 lineage-labeled tdTomato+AQP5+ AT1 cells in (D). Data are presented as mean ± SEM (n=5 mice for each group).
C, PTPN3 rescues the degradation of TβRI induced by Smurf2. HEK293T cells were transfected with the indicated plasmids. Cells were harvested after 24 h post-transfection. Western blotting was done with the indicated antibodies.
Surface Stress radial kymograph of a representative time-lapse Phases are represented in different densities of brown. Graph representing the mean and standard deviation of the surface stress radial kymographs Values color coded in different densities of brown.
Structure of quiescent SecYEG of Thermus thermophilus in the lipid cubic phase (PDB ID: 5AWW). TMHs 2b, 3, 7, and 8 of the lateral gate, as well as the proximate loop 6/7 involved in ribosome binding are indicated. The non-essential SecG subunit is omitted for clarity. Model of the SecY lateral gate opening upon inserting a nascent chain (red) in the lipid bilayer. The color-coding of SecYE TMHs is as in panel A. In the presence of the completely inserted and folded nascent chain, TMHs 2b and 3 of the N-terminal domain of SecY are displaced (arrows) thus opening a broad passage for the nascent TMH towards the lipid moiety.
E: Quantitative mRNA expression analysis of populations sorted Error bars: standard deviation of gene expression values measured in four independent experiments.
F) Evaluation of the G1 cell cycle phase after 14 h of the release of nocodazole treatment. Data information: Data are means ± s.d. of three independent experiments, student t test was used to calculate statistical significance (*p <0.05, **p <0.01).
(A) COUP-TFII+ cells (green) express pericyte/fibroblast marker (PDGFRβ) but not the endothelial cell marker (CD31).
(B) USH1C transcripts were consistently detected in all tested organs of WT and USH1C pigs, except in the heart and cerebellum. RT-PCR for GAPDH was used as control (Ctrl.).
(E) Diameter of CJs. CJs were manually measured on TEM recordings. Red line: Average. Error bars: SD. Samples were compared to WT by a One-way ANOVA test. Data information: n: number of mitochondrial sections
(F) Western blot analysis of HPC7 cells expressing empty vector (EV), wild type STAT5B (WT) or mutant STAT5B (Y699F). EV and Y699F expressing cells exhibit similar levels of STAT5 phosphorylation following TPO treatment (100ng/ml for 30min).
OsPRR73 binds the promoter of OsHKT2;1, by recruiting HDAC10, to negatively regulate the expression of OsHKT2;1 to reduce the import of cellular sodium ion, which subsequently reduced ROS accumulation, thus conferring salinity stress (left panel). In the absence of OsPRR73, the transcription inhibition of OsHKT2;1 was released, hence resulted in sodium ion accumulation. The excessive sodium ion subsequently accumulation caused ROS accumulation, to forming a Na+-ROS stress cascade, leading to decreased survival.
(F) Isotopic enrichment of 15N-labeled argininosuccinate in livers of AslNeo/Neo mice treated with TB-1 (n=11) or vehicle (n=5). *p<0.05 (Unpaired t-test). Data information: All values are shown as averages ± S.E.M. ns: not statistically significant difference.
(E) Mutating ANO8 R949,950,951 to Q reduced translocation of ANO8. Data information: The first number in parenthesis indicates the number of similar experiments performed and the second number is the number of cells analyzed. All results are given as mean±s.e.m of the indicated number of experiments or cells analyzed.
I. Enumeration of Db-PA+ cells that are resident (left panel) or circulating (right panel). Experiment was repeated twice with 3 pairs each and data was pooled. * p<0.05 Student's two-tailed t-test with unequal variance.
(a) Immunofluorescence microscopy of HeLa cells transfected with HA-Nod2 (red) and Flag-ΔN85-ATG16L1(green) and infected for 10-20 min with S. flexneri M90T. Blue, DAPI. Arrows indicate colocalization of Nod2 and ATG16L1 around invading bacteria. Scale bars, 5 μm. Data are representative of one of three independent experiments.
(E) HepG2 cells were transfected with vector, JFK, or/and ING5, or treated with control siRNAs or siRNAs against JFK, AMPKα1, or/and ING5. Mitochondria were isolated and the rate of fatty acid β-oxidation was measured by spectrophotometry of ferricyanide-trapped reduced products. Error bars represent mean ± SD for triplicate experiments (*p < 0.05, paired two-tailed Student's t-test).
D. T2- weighted magnetic resonance imaging (MRI) showing tumour development in rats injected with DAOY cells transfected with control shRNA or shRNA against Fbxl17. One representative image for each condition, at 10 weeks is shown. Scale bar: 5mm. E. Graph showing area of T2 hyperintensity (a surrogate marker of tumourgrowth) between 4 and 10 weeks post-tumour induction. Animals were injected with DAOY cells stably expressing control shRNA or shRNA against Fbxl17 (10,000 cells/1µL). (mean ± SEM; n = 5; two-way ANOVA, followed by unpaired t-test, *p<0.05, **p<0.01).
D) Schematic representation of univalents axes (black lines) with sites of LSAEs, and relative distribution of REC8 (green), RAD21L grey) and RAD21 (grey).
B. Interaction of different hFis1 mutants with Mfns and OPA1. hFis1-/- 293T cells were transfected with the full-length and the truncated hFis1 mutants as indicated, followed by in vivo crosslinking with 1% FA. Cell lysates were used for co-IP with anti-Myc or anti-GFP agarose beads and the immunoprecipitates were analyzed by Western blotting with indicated antibodies.
(B) Immunoblot analysis for Pep2-triggered MAPK activation. Ponceau S-stained loading controls are shown (bottom).
(B) Western blotting and densitometric analyses for LC3-II/LC3-I ratio in DMKG (2 mM)-treated CTNSWT and CTNS-/- cells upon pre-treatment with cysteamine, bicalutamide, and a combination of cysteamine and bicalutamide (n = 3).
(C) Stacked column depicts the relative amount of myeloid and lymphoid subpopulations in 99LN-BrM based on three flow cytometry panels: myeloid cells (n=5), dendritic cells (n=7), lymphoid cells (n=6).
J. Ratio of each syllable type in STO and ATO. Each color corresponds to individual syllable categories
G,H - BrdU incorporation and cell cycle re-entry analysis with the progenitor cell marker Ki67 at E17.5, in the rostral cortex of control embryos compared to rostral rosettes of Rx-Dicer mutants. Dotted lines indicate apical surface, dashed lines indicate basal border of VZ. Arrowheads indicate double-positive cells. Data in histograms are mean ± SEM, symbols indicate values for individual embryos; n ≥ 3 embryos; X2-test, *P < 0.05, ***P < 0.001.
E-G Panc02 cells with stable expression of shRNA were implanted subcutaneously into C57Bl6/Nmice. Seven days later, mice were treated with 20 mg/kg gemcitabine delivered by intraperitoneal injection; n = 4 animals in shNC+GEM group, n = 5 animals in all other groups; significantly different (P < 0.05) between groups: shNC vs. shNC+GEM (*), shNC vs. shTBL1 (#), shNC vs. shTBL1+GEM ($), shNC+GEM vs. shTBL1 (%), shNC+GEM vs. shTBL+GEM (†); shTBL1 vs. shTBL1+GEM (‡); two-way ANOVA with Bonferroni post-test. (E) Tumor volume determined by transcutaneous measurement with digital calipers. P-values: day 17: 8.48 × 10−3 (#), 1.07 × 10−3 ($), day 20: 3.07 × 10−3 (*), 9.37 × 10−6 (#), 1.56 × 10−8 ($), 0.0239 (†). (F) Tumor volume relative to the volume at day 7 post-implantation; P-values: day 17: 3.94 × 10−3 ($), day 20: 1.09 × 10−3 (*), 1.39 × 10−7 ($), 0.01195 (%), 3.12 × 10−6 (‡). (G) Area under curve for relative tumor volume; P = 0.0195 (‡).
a) Auto-ubiquitination assays in which the E3 acts as both an E3 and as proxy substrate were performed with GST-HHARIRBR, T7-Triad1ΔAri, GST-ParkinRBR, and Flag-BRCA1/BARD1 and either UbcH5WT or UbcH5L104Q as the E2. Products were visualized by western blotting against indicated tags on E3s. Times given are post-ATP addition.
(A) Multiple sequence alignment of Atg8 homologues. Amino‐acid sequences of Atg8 and its mammalian homologues are aligned using the Clustal_W program. Underlined residues represent mutated amino acids in Atg8.
(A) Representative images at 3 hours of FCCP treatment (10 μM) of YFPParkin (green) expressing MiroDKO cells co-transfected with the specified myc-tagged versions of Miro1 (cyan). Tom20 (red) was used to reveal the mitochondrial network. A detail of YFPParkin translocation onto the mitochondrial network is also shown for each condition.
(D) HEK293T cells were cultured in regular or starvation medium for 2 h. Cells were harvested and treated with DSP.
(E) Table listing the number of acetylation sites on core histones identified by MS after acetylated peptide enrichment
(A, B) The Mouse macrophage J774A.1 cell line was transfected with control siRNA or siRNA against IKKβ (A) or IKKα (B). 72 h post-transfection, the cells were co-stimulated for 60 min without (-) or with (+) 100 ng/ml LPS and/or 5 μM nigericin. Cell lysates (10 μg) were denatured in SDS, subjected to SDS-PAGE and immunoblotted with the antibodies indicated. Similar results were obtained in three (A) or two (B) independent experiments.
(E) Western Blot analysis of Parental (WT) and FLIP knockout (KO) HAP-1 cells treated with 10ng/mL IZ-TRAIL for 0, 3, 6 or 24 hours.
C. Co-immunoprecipitation of endogenous miR-133b and miR-509-3p following UV crosslinking immunoprecipitation (CLIP) of Cx43 (n=3-5 biological replicates). Data information: p-values were derived by Mann-Whitney test. Bars and error bars indicate mean ± SD in all graphs.
Period analyses of WT and CKO PER2::LUC cells in the presence or absence of CRY inhibitor KL001 (1 µM).
(B) Distribution of the endogenous HIST2H2AA3 mRNA was detected with the transcript-specific probe in HeLa cells depleted of Cntl, ALYREF, THOC2 (THO) and UAP56. N and C indicate nuclear and cytoplasmic FISH signals, respectively. N/C ratios were calculated Data information: Error bars represent standard deviations from biological repeats (n=3 Statistical analysis was performed using Student's t-test. *P < 0.05, **P < 0.01, ***P< 0.001.
(A) Examples of chromosome arms exhibiting features of telomeric semiconservative (Semi) replication, conservative (Consrv) replication of the entire telomere (E) and conservative replication of part of the telomere (P). Idealized chromosome diagrams (left) and actual microscopy images (right) are shown. D-FISH, denaturing FISH; ND-CO-FISH (non-denaturing CO-FISH).(B) Percentages of chromosome arms exhibiting conservative (Consrv) replication of the entire telomere (E), conservative replication of part of the telomere (P) and conservative replication of either the entire telomere of part of it (E+P). NE, U2OS cells expressing normal levels of cyclin E; OE, U2OS cells overexpressing cyclin E for four days. Bars represent means and standard errors of the mean from three independent experiments. Cyclin E overexpression resulted in higher percentages of conservatively replicated telomeres: P<0.025 for Consrv (P) and P<0.05 for Consrv (E+P), as calculated using the paired t test.
(B) Extreme limiting dilution assay (ELDA) of MCF-7 cells. Sorted cells were serially diluted (1250, 625, 312, 156 and 78 cells) and then seeded in 96-well plates. After one week, the cells were fixed, stained and counted. The lower limit for well repopulation in CD44+ cells was 312 cells, compared with 615 cells for both unsorted and CD44- populations. The data obtained were evaluated using the ELDA software. p values that test the single-hit hypothesis using the likelihood ratio test are shown. The curves are depicted in Fig EV1
Kugeln persisted for variable durations before regression into the parent vessel (43 kugeln from 9 4dpf embyros; 4 experimental repeats).
(e) LC3-LAMP1 colocalization in single FDBs from mdx and p47−/−-mdx mice was analysed using confocal microscopy. Representative images from n=3 independent biological experiments are shown (scale bar=100 and 40 μm for red box areas).
(B) 1×104 ISCs from indicated mice were collected for organoid formation. Scale bar, 200 μm. n=3 for each group. Organoid formation ratios was shown as means ± S.D. ** p<0.01 by two-tailed Student's t-test.
(B) Maltoheptaose ubiquitylation by HOIL-1 was assayed at 30°C in the presence of Met1- or Lys63-linked ubiquitin tetramers for the indicated times and visualised by Coomassie staining.