EMBO/sd-character-level-ner huggingface dataset:
Figure 5GRfl/fl (n=8) and GRVillinKO mice (n=10) were treated with 5 mg/kg LPS and lethality was monitored. P-values were analyzed with a Fisher's exact test. GRVillinKO mice were treated with PBS (n=9) or 10 mg/kg DEX (n=10) before 5 mg/kg LPS and lethality was monitored. P-values were analyzed with a Fisher's exact test. TNF measurement in the serum of GRfl/fl (n=4) and GRVillinKO mice (n= 4). Mice were treated with 5 mg/kg LPS and blood was drawn 2 hours later. TNF measurement in the serum of GRfl/fl (n=4) and GRVillinKO mice (n=4). Mice were treated with PBS or LPS (12.5 and 5 mg/kg for GRfl/fl and GRVillinKO mice respectively) with or without pre-treatment with 10 mg/kg DEX for 30 minutes. Blood was taken 2 hours after LPS challenge and TNF concentrations were measured with ELISA. GRVillinKO mice were treated with PBS (n=8) or a neutralizing P55 (TNFR1) antibody (n=9) 2 hours before and 8 hours after 5 mg/kg LPS and lethality was monitored. P-values were analyzed with a Fisher's exact test. Ileum was isolated from non-stimulated GRfl/fl (n=4) and GRVillinKO mice (n=4) and gene expression was measured via qPCR. Expression levels are shown as fold induction with GRfl/fl expression values set at 1. P-values were calculated using a student's t-test. GRfl/fl (n=4) and GRVillinKO mice (n=4) were treated with 5 mg/kg LPS. Ileum was isolated and gene expression was measured via qPCR.
Figure 5The expression of the IL-6Rα (CD126) and signaling chains (gp130) was assessed by flow cytometry (A) on a panel of DLBCL cell lines. ABC- and GCB-DLBCL cell lines are color-coded in red and green; RC-K8 are depicted in grey, as their subtype is a matter of debate The expression of the IL-6Rα (CD126) and signaling chains (gp130) was assessed by SYBR or Taqman qRT-PCR (B, C) respectively, on a panel of DLBCL cell lines. ABC- and GCB-DLBCL cell lines are color-coded in red and green; RC-K8 are depicted in grey, as their subtype is a matter of debate D and E. The expression of gp130 in 114 tumor biopsies of DLBCL patients was assessed by immunohistochemistry, and correlated with the ABC/non-GCB vs. GCB subtype, as assessed via Hans classification. Representative micrographs are shown in D, alongside the quantification of gp130+ cases among all samples, and among the two subtypes, in E. Scale bar, 100 μm.
a,b) Anti-Atg8 western blots using the indicated GST fusion proteins shown on the left as bait to pull down Atg8.figf3(a,b) Anti-Atg8 western blots using the indicated GST fusion proteins shown on the left as bait to pull down Atg8. See Supplementary Fig. 1 for input gels. (c) Alignment of the Atg19 C-terminus lacking the LIR motif with the region around the LIR motif of human p62 (NP_003891.1). The amino acids shown in magenta and green indicate the residues mutated in the experiments shown in d-f. (d) Anti-Atg8 western blots with the indicated GST fusion proteins as bait to pull down Atg8. Quantification of the amount of Atg8 pulled down by the indicated GST fusion protein. The graph is based on three independent experiments (N = 3), one of which is shown below the graph. Shown are the averages and s.d. WT, wild type. (e) Green fluorescent protein (GFP)-trap pulldown experiment using yeast cells with integrated GFP-Atg8 transformed with the indicated Myc-Atg19 constructs. (f) Pulldown experiment using the GST-prApe1 propeptide (propep.) to pull down Atg8 through the indicated Atg19 proteins. The graph is based on three experiments (N = 3), one of which is shown below the graph. Shown are the averages and s.d. See Supplementary Fig. 2 for input gel. g) Representative profile of a size exclusion chromatography run using a 10/300 S200 column. Atg8 was run at 400 μM and the Atg19 C-terminus at 40 μM. For the complex run both proteins were preincubated at the concentrations mentioned. The average number of Atg8 molecules shifted into the complex peak per Atg19 C-terminus was 4.14 (average of three experiments). The experiments shown in a,b,d,f,g have been conducted three times; the experiment shown in e has been conducted twice. Images of uncropped western blots and gels can be found in Supplementary Fig. 7.
Figure 6GW11 EGFR-expressing cells exhibited radial glia morphology and most co-expressed SOX9 (A) but not OLIG2 (B). However, EGFR co-expression with SOX9 or OLIG2 was found in GW17 EGFR-expressing cells (C, D). White dashed lines marked dorsal horn borders. Higher-magnification view of boxes on left. Scale bars: 100 μm.
HMGB1 is an autophagy‐based alternative secretion substrate.Figure 6(A) Atg5fl/fl Cre− and Atg5fl/fl Cre+ bone marrow‐derived macrophages (BMMs), pretreated overnight with 100 ng/ml LPS, were stimulated for 1 h with the inflammasome agonist nigericin (20 μM) with (Starvation; EBSS) or without (Full; full medium) autophagic induction. Cell culture supernatants were assayed for murine IL‐1β by ELISA. Data represent mean values±s.d. (n⩾3); *P0.05. (B) LPS‐pretreated Atg5fl/fl Cre− and Atg5fl/fl Cre+ BMMs were stimulated with 20 μM nigericin for 1 h in OptiMEM and the release of HMGB1 was determined by immunoblotting. Figure source data can be found in Supplementary data.
Transcription directionality is preserved across cell types.Figure 2(A) Histogram shows genome-wide distribution of log10-transformed directionality scores at bidirectional promoters. Directionality score for promoters is defined as the ratio of mRNA and uaRNA reads counted within 1 kbp regions downstream sense and upstream antisense of the protein-coding TSS. Promoters with divergently transcribed protein-coding gene pairs were excluded The red dashed line marks the median. (B) Bidirectional promoters show higher mRNA synthesis. Boxplots showing TT-seq signal for mRNAs from unidirectional (n=39,376) and bidirectional (n=83,363) promoters. Bidirectional and unidirectional promoters were defined for each cell line separately and then plotted together. Box limits are the first and third quartiles, the band inside the box is the median. The ends of the whiskers extend the box by 1.5 times the interquartile range. Notches represent 95% confidence intervals for the median values. Outliers not shown. P-value by two-sided Mann-Whitney U-test. (C) Boxplot showing pairwise Pearson correlation between uaRNA and mRNA synthesis at bidirectional promoters across cell lines. Only promoters with observed bidirectional transcription in at least 5 cell lines and varying transcription across cell lines (coefficient of variation > 50%) were considered (n=3,468 Median, hinges, whiskers and notches are shown as in (B). (D) Histogram shows genome-wide distribution of log10-transformed directionality scores at bidirectional enhancers. Directionality score for enhancers is defined as the ratio of reads mapped to the plus and minus strand. Only bidirectional intergenic enhancer regions shorter than 3 kbp were considered In accordance with (Jin et al., 2017) enhancer regions were categorized as having a preferred direction (white) if the absolute value of the plus to minus strand ratio was ≥ 3 and as bidirectionally balanced (grey) if it was <3. Note that the distribution would be less balanced if unidirectionally transcribed enhancers were included. (E) Boxplot showing pairwise Pearson correlation between plus and minus strand transcription at bidirectional enhancers over cell lines. Only enhancers with observed bidirectional transcription in at least 5 cell lines and varying transcription over cell lines (coefficient of variation > 50%) were considered (n=715 Median, hinges, whiskers and notches are shown as in (B).
Figure 6A. RNA expression of mitosis checkpoint genes in CMs with FoxM1 or Id1 overexpression, Jnk3-shRNA, or combined treatment. B. Transcriptional expression of cyclin-dependent kinases in FoxM1 or Id1 up-regulated, Jnk3 down-regulated, or combined treated CMs. C. Real-time RT-PCR analysis of CDK inhibitor expression in CMs with FoxM1 or Id1 overexpression, Jnk3-shRNA or combined treatment. D. Schematic diagram demonstrating the proposed mechanism for FIJs-driven CM proliferation.
Intracellular poliovirus yields are reduced when cells are treated with inhibitors of vesicle acidification.Figure 4(A) Triplicate samples of H1-Hela cells were infected with PV at an MOI of 0.1 pfu/cell, and cell-associated virus was collected at the indicated times post-infection. NH4Cl (20 mM) was added to the media at the time of infection (solid line). Virus titers were then determined by plaque assay. (B) Infection as in (A), carried out to 16 h to represent a multiple-cycle infection. (C) Triplicate H1-Hela infections with PV at an MOI of 50 pfu/cell, with cell-associated virus collected at 6 h.p.i. (D) Cells were infected as in (A), then NH4Cl was added to half of the samples at 3.5 hours post-infection, and cell-associated virus was collected immediately or at 7 h.p.i. (E) Cells were pre-treated for 14 hours with 0.1 µM bafilomycin A1 (Baf.A1) and kept under treatment throughout infection (MOI = 0.1 pfu/cell). Cell-associated virus was collected at 6 or 12 h.p.i. and virus titers were determined by plaque assay. * p<0.05, ** p<0.01, *** p<0.0001.
TBL1 controls pancreatic cancer cell growth and metabolic adaptations.Figure 2Left panel: EdU incorporation in siRNA-transfected Capan-1 cells (72 h post-transfection), n = 6 cell culture wells per group; significantly different (P < 0.05) from control (no siRNA) *, siNC #1 #, siNC #2 $; P-values: siTBL1#1 8.24 × 10−4 (*), 5.43 × 10−4 (#), 7.93 × 10−6 ($); siTBL1 #2 1.66 × 10−11 (*), 1.27 × 10−11 (#), 8.79 × 10−13 ($), one-way ANOVA with Bonferroni post-test. Right panel: EdU incorporation of Panc02 cells with stable expression of shRNA; n = 6 cell culture wells per group; significantly different (P < 0.05) from control (shNC) #P = 0.0398; Welch's t-test. Cellgrowth of siRNA-transfected Capan-1 or Panc8680 cells; n = 3 cell culture wells per group; significantly different (P < 0.05) from control (no siRNA) *, siNC #1 #, siNC #2 $; P-values: Capan-1 cells 48 h time-point: 0.0408 (*) for siTBL1 #1 / 0.0464 for siTBL1 #2, Capan-1 cells 72 h time-point: 8.60 × 10−5 (*), 1.82 × 10−3 (#), 3.24 × 10−5 ($) for siTBL1 #1 / 2.39 × 10−10 (*), 3.34 × 10−9 (#), 1.08 × 10−10 ($) for siTBL1 #2; Panc8680 72 h time-point: 1.55 × 10−4 (*), 2.73 × 10−5 ($); two-way ANOVA with Bonferroni post-test. Uptake of radio-labeled 3H-2-deoxyglucose in siRNA-transfected Capan-1 cells (48 h post-transfection); n = 6 cell culture wells per group; statistically different (P < 0.05) from control (siNC #2) $P = 0.03; Welch's t-test. Extracellular flux measurement of siRNA-transfected Capan-1 cells with glycolysis stress test assay (48 h post-transfection); 2-DG: 2-deoxyglucose; ECAR: extracellular acidification rate. n = 6-8 cell culture wells per group; significantly different (P < 0.05) from control (no siRNA) *, siNC #1 #, siNC #2) $. Upper symbols: statistics for siTBL#1, P-values: 2.18 × 10−3 (*) time-point 8, 9.83 × 10−3 (*) time-point 9, 0.0102 (*) time-point 10, 0.044 (*) time-point 11; 2.42 × 10−6 (#) time-point 8, 1.47 × 10−4 (#) time-point 9, 3.17 × 10−4 (#) time-point 10, 0.0277 (#) time-point 11; 9.44 × 10−7 ($) time-point 8, 1.23 × 10−6 ($) time-point 9, 1.33 × 10−6 ($) time-point 10, 7.14 × 10−5 ($) time-point 11. Lower symbols: statistics for siTBL#2, P-values: 3.94 × 10−3 (*) time-point 5, 0.0143 (*) time-point 6, 0.0342 (*) time-point 7, 1.45 × 10−3 (*) time-point 8, 1.27 × 10−3 (*) time-point 9, 2.38 × 10−3 (*) time-point 10; 0.01 (#) time-point 5, 0.0362 (#) time-point 6, 1.22 × 10−6 (#) time-point 8, 1.28 × 10−5 (#) time-point 9, 5.84 × 10−5 (#) time-point 10; 0.0118 ($) time-point 5, 0.0208 ($) time-point 6, 0.0291 ($) time-point 7, 4.52 × 10−7 ($) time-point 8, 6.04 × 10−8 ($) time-point 9, 1.43 × 10−7 ($) time-point 10, 4.83 × 10−3 ($) time-point 11. Two-way ANOVA with Bonferroni post-test.
S100A9 expression in human epidermal LC (eLC) restricts HIV-derived LV transduction(A) MoLC, dermal and epidermal cells were subjected to confocal immunofluorescence microscopy for langerin and S100A9 expression analysis.Figure 4MoLC, dermal and epidermal cells were subjected to confocal immunofluorescence microscopy for langerin and S100A9 expression analysis. Scale bar: 5µm. Representative experiment of human epidermal cells analysed by flow cytometry for the expression of langerin, CD1a and S100A9 (Skin samples from n=2 donors). The enriched CD1a+/langerin+ population representing human eLC is shown (black circle). Lysates from CD1a+ and CD1a- cells from human skin dermis or epidermis (Epi) were subjected to immunoblotting for the expression of S100A9 proteins. Loading control was done with anti-actin (n=2). RT-qPCR analysis of S100A9 expression in human CD1a+ epidermal cells transfected with siCTR or siS100A9 (skin samples from n=2 donors). RT-qPCR data were represented as means ± SD. Human epidermal cells treated as before were challenged for 48h with 20 and 200ng of p24 of HIV-Luc. When indicated cells were pre-treated with 10μM Nevirapine for 30 min before viral challenge. Luciferase activities measured in duplicates for each condition from two (infection with 20 ng P24) or three (infection with 200 ng P24) different skin samples were represented on a graph as means of relative luminescence units (RLU) ± SD.
FBXO2 targets intracellular GAS through sugar-binding motifs.Figure 4A Schematic representation of wild-type FBXO2 and domain deletion mutants of FBXO2. Numbers above the constructs represent the amino acid positions of FBXO2. PEST (residues 1-54) and F-box domains (residues 55-95), linker sequence (residues 96-124), and sugar-binding domain (residues 125-297) are indicated by P, FBD, linker, and SBD, respectively. B, HeLa cells transfected the indicated GFP-FBXO2 mutants (green) were infected with WT GAS for 4 h; scale bar, 10 μm. Representative confocal images (B) C HeLa cells transfected the indicated GFP-FBXO2 mutants (green) were infected with WT GAS for 4 h; scale bar, 10 μm. percentages of each FBXO2 mutants localized to GAS (C). D EmGFP intensities bound to GAS cells in vitro. GAS cells were incubated cell lysate expressing EmGFP, EmGFP-FBXO2, or EmGFP-FBXO2Y279A/W280A, and precipitated EmGFP with GAS cells. E, F Recruitment of FBXO2 to intracellular GAS in SKP1/CUL1/ROC1 knockdown cells. HeLa cells transfected with GFP-FBXO2 (green) and the indicated siRNAs were infected with GAS, fixed at 4 h; scale bar, 10 μm. Representative confocal images (E) and percentages of FBXO2 localized to GAS (F).
Figure 3(A) Immunoblot of brain tubulin with or without carboxypeptidase A (CPA). Note CPA specifically removes the α-tubulin C-terminal tyrosine without affecting other PTMs. (B) TIRF image of TMR-labeled DDB molecules (green) on either WT (red) or CPA-treated (blue) pig brain MTs. Standard deviation map of the entire time sequence shows DDB preference for WT MTs and kymographs from either WT or CPA-treated are shown. Scale bars are 5 μm and 25 sec. (C) Quantification of the number of processive DDB complexes per μm MT per sec on the CPA-treated MTs, relative to WT MTs in the same chamber (n ≥ 7 MTs of each type quantified from at least three independent experiments). Error bars represent SD. (D) TIRF images of 0.3nM TMR-labeled p150 (top) or 1nM TMR-labeled GST-hDyn (bottom) molecules (green) bound to either WT (red), or CPA-treated MTs (blue). Right, standard deviation maps of protein binding over an entire time sequence and kymographs from either WT or CPA-treated are shown. Scale bars are 5 μm and 25 sec for p150, and 5 μm and 12 sec for GST-hDyn (E) Quantification of mean fluorescence intensity (arbitrary units) per μm MT for TMR-labeled GST-hDyn (2mM ATP) or p150 bound to CPA-treated MTs relative to WT MTs in the same chamber. The intensity of GST-hDyn was quantified from maximum intensity projections of the entire time sequence due to transient binding of GST-hDyn to the MT (n ≥ 10 MTs quantified for each condition from at least three independent experiments). Error bars represent SD.
a suppresses IgH/c-Myc translocation.Figure 2(A) Schematic representation of the IgH and c-Myc chromosomal loci before and after translocation. Arrows and black bar indicate the positions of the PCR primers used to amplify the rearranged region and the probe for Southern hybridization, respectively. (B) Southern blots of the IgH/c-Myc translocation assay using genomic DNA extracted from CIT-stimulated CH12F3-2A cells treated with the siRNAs shown at the bottom of each panel. Numbers on the top indicate gel lanes. (C) Frequency of IgH/c-Myc chromosomal translocations derived from the number of translocations detected in the total number of PCR reactions per sample (Boboila et al., 2012b). The values are presented as mean ± sd (n=3). Statistical significance was assessed by two tailed unpaired Student's t-test (** p ≤ 0.01, *** p ≤ 0.001).
Figure 3 A Representative microCT images of trabecular bone from the femoral metaphysis of male Sp7-Cre;Usp34f/f and littermate control mice. Scale bar, 500 μm B, C Von Kossa stainin histomorphometric analyses of male femurs. Scale bar, 500 μm. Results are shown as mean ± SEM; n=8; *: p<0.05, **: p<0.01 and ***: p<0.001 by t test  D Representative microCT images of trabecular bone from the femoral metaphysis of female Sp7-Cre;Usp34f/f and littermate control mice. Scale bar, 500 μm. E, F Von Kossa stainin histomorphometric analyses of female femurs. Scale bar, 500 μm. Results are shown as mean ± SEM; n=8; *: p<0.05 by t test  G Representative images of ALP, ARS and Van Gieson's staining of MSCs obtained from Sp7-Cre;Usp34f/f and littermate control mice  H, I Quantitative analyses of the ALP activity and calcium mineralization. Results are shown as mean ± SEM; n=6; *: p<0.05 and **: p<0.01 by t test  J Quantitative RT-PCR analyses of the transcription of osteogenic markers. Cells were differentiated in osteogenic medium for 5 days. Results are shown as mean ± SEM; n=3; *: p<0.05 and **: p<0.01 by t test
Multi-omic functional investigation of Pyk1 variants.Figure 2(A) PCA of metabolite data based on concentrations of 27 central-carbon metabolism intermediates. To visualise this high-dimensional data set, we divided the concentration of each metabolite by the median concentration of the T-strain. This normalisation corrects for the large differences in concentrations observed between metabolites but maintains the relative variance within each metabolite. Biological replicates of the T- and A-strains show distinct profiles, largely driven by concentrations of phosphoenolpyruvate, 2-/3-phosphoglyceric acid, NADH and NADPH, as indicated by top loading vectors for each principal component. The biological repeats for the three edited A-strains (circles, squares and triangles) behave similarly, with a variance comparable to that of the biological replicates of the single T-strain. (B) Left boxplot: two glycolytic intermediates directly upstream of PYK were strongly depleted in the A-strain (nT-strain=9, nA-strain=8). Right barplot: PYK activity was directly measured using a lactate dehydrogenase-coupled colorimetric enzyme activity assay, showing the mean and standard deviation of substrate conversion rate for 3 biological replicates, each measured in technical duplicates. Data information: Significance keys: * p<0.05, ** p<0.005, *** p<0.0005 (Welch's t-test) (C) Concentrations of fructose-1,6-bisphosphate, which correlate with glycolytic flux, are significantly higher in A-strain (ratio = 1.35, nT-strain=9, nA-strain=8). Data information: Significance keys: * p<0.05, ** p<0.005, *** p<0.0005 (Welch's t-test) (D) Boxplots for selected metabolomics data indicate differences in energy and redox status between T- and A-strains (nT-strain=9, nA-strain=8). Data information: Significance keys: * p<0.05, ** p<0.005, *** p<0.0005 (Welch's t-test) (E) Heatmap of the 432 genes that are differentially expressed at the RNA level between the T- and A-strains (FDR <10%) and are measured in all four conditions (columns). First column: genes ordered by increasing fold-changes for RNAs (computed as log2[T]-log2[A]). Second column: fold-changes for proteins (computed as log2[T]-log2[A]). Third column: fold-changes for RNAs in cells treated with rapamycin & caffeine (TORC1 inhibition; computed as log2[treatment]-log2[control]) (data from ref. (Rallis et al, 2013)). Fourth column: fold-changes for RNAs in cells treated with H2O2 (oxidative stress; computed as log2[treatment]-log2[control]) (data from Chen et al, 2003). Log2 fold-changes are capped at absolute values of 1 for all columns. (F) Gene Ontology (GO) enrichment analysis of differentially expressed transcripts (using all measured transcripts as background). Shown are Biological Process terms only The length of the bar represents the significance of the enrichment, while its color reflects the direction and magnitude of differential expression (A- vs T-strain) of individual genes annotated to this term.
Figure 2Schematic view showing the location of putative cyclin F recognition motifs (RxL or RxI) on murine E2F7 and E2F8 proteins. C-terminus motifs at parallel positions on E2F7 and E2F8 are essential for binding to cyclin F. The residues on each motif were mutated to alanines (R to A, I/L to A) with site-direct mutagenesis PCR. HEK293 cells were transfected with either EGFP-tagged empty vector (EGFP), wild-types E2F7/8 (WT) or alanine mutants. Nocodazole (50 ng/ml) was added 32 hours after transfection, and MG132 (1 μg/ml) was added 5 hours before harvesting at 48 hours post transfection. Cells were harvested and lysed for immunoprecipitation using anti-EGFP resin followed by immunoblotting with antibodies against cyclin F and EGFP. Schematic view showing the truncated mutants and ML/AA mutant of cyclin F (Left). HEK cells were transfected with indicated constructs and co-immunoprecipitation was performed using Flag resin (Right).
WT and dnm1Δ cells expressing integrated Hsp78-GFP and plasmid-borne mtRFP were grown on lactate medium for 3 days.f7WT and dnm1Δ cells expressing integrated Hsp78-GFP and plasmid-borne mtRFP were grown on lactate medium for 3 days. Cells were imaged daily and the images were analysed using ImageJ as described in Methods. Graphs illustrate the distribution of pixels associated with specific values of RFP and GFP channel intensities, respectively. Diagonal concentrations of dots indicate spatial correlation between the signals. The coloured photographic panels at the bottom illustrate the increased intensity correlation of the two channels at the 3-day time point in the dnm1Δ mutant, relative to the WT cells. Scale bar, 5 μm.
TIP60 S90 phosphorylation regulates its affinity to chromatin (A) Localization of TIP60 was analysed employing U2OS cells stably expressing FLAG- TIP60WT, FLAG-TIP60S90A or FLAG-TIP60S86A.Figure 2 (A) Localization of TIP60 was analysed employing U2OS cells stably expressing FLAG- TIP60WT, FLAG-TIP60S90A or FLAG-TIP60S86A. Nucleoplasm (nuc.) and chromatin (chr.) fractions were generated and were subjected to Western blot analysis  (B) The experiment as described in (A) was repeated twice with U2OS cells and twice with Ba/F3 cells and the blots were quantified. Each dot represents the ration of FLAG-TiIP60 to H4 in the chromatin fraction of altogether four individual experiments as shown in (A)  (C) Nuclear extracts of U2OS cells stably expressing FLAG-tagged TIP60WT or TIP60S90A, or FLAG-tagged chromodomain mutants TIP60F50A, TIP60Y47A, TIP60Y44F or the empty vector (vec) were subjected to fractionation into nucleoplasm (nuc.) and chromatin (chr.) fraction. Both fractions were analysed by Western blotting  (D) Nuclear extracts of U2OS cells stably expressing FLAG-tagged TIP60WT, TIP60S90A, TIP60S90E, TIP60S90D or the empty vector (vec) were subjected to fractionation into nucleoplasm (nuc.) and chromatin (chr.) fraction. Both fractions were analysed by Western blotting  (E) U2OS cells stably expressing FLAG-tagged TIP60WT, TIP60S90A or empty vector (vec) were treated with 2 µM SNS-032 (SNS) for 3 hours as indicated. The nucleus was fractionated into nucleoplasm and chromatin. Both fractions were analysed by Western blotting