EMBO/SourceData huggingface dataset:
Figure 3Signalling downstream of VEGF-A/VEGFR2 assessed in HDMEC, untreated (NT, non-transfected), transfected with non-targeting siRNA (c/cntrl), or with two different PALD1-targeting siRNAs (KD#1 and KD#2), and treated with VEGF-A for 0-10 and 0-20 min, respectively. Immunoblotting of cell lysates for phosphorylated (p) VEGFR2 (pY1175), total VEGFR2 Actin served as loading control (a PALD1 knockdown was verified by blotting for Paladin. Quantification of pVEGFR2 (normalized to total VEGFR2) (b) Mean±SEM, two-way ANOVA, n=3 biological replicates. Data information: *p < 0.05, **p < 0.01.Signalling downstream of VEGF-A/VEGFR2 assessed in HDMEC, untreated (NT, non-transfected), transfected with non-targeting siRNA (c/cntrl), or with two different PALD1-targeting siRNAs (KD#1 and KD#2), and treated with VEGF-A for 0-10 and 0-20 min, respectively. Immunoblotting of cell lysates for phosphorylated Erk1/2 (pT202 and pY204), and total Erk. Actin served as loading control c). PALD1 knockdown was verified by blotting for Paladin. Quantification of pErk1/2 (normalized to total Erk1/2) (d). Mean±SEM, two-way ANOVA, n=3 biological replicates. Data information: *p < 0.05, **p < 0.01.(e-f) Immunoblotting on total heart lysates from adult Pald1+/+ and Pald1-/- mice, tail-vein injected with VEGF-A (0.25µg/g body weight) or PBS for the indicated time points, for Paladin, phosphorylated and total levels of VEGFR2, Erk1/2 and β2-microglobulin (β 2-MG, loading control). (f) Quantification of pVEGFR pY1173 normalized to total VEGFR2 (n=3), total VEGFR2 levels normalized to total loading control (n=4), pT202/pY204 Erk1/2 normalized to Erk1/2 (n=5). Mean±SEM, multiple t-test with Holm-Sidak correction (total VEGFR2), two-way ANOVA (others). Data information: *p < 0.05, **p < 0.01.
Figure 4(a, b) Delayed vascular outgrowth and hyperdense vascular front in isolectinB4-stained P5 retina from Pald1-/- mouse compared with Pald1+/+ (a). Orange arrow indicates radial expansion of the vascular plexus in the Pald1+/+ retina. Scale bar: 1 mm. Quantification of radial expansion (b) as shown in (a) normalized to wild type litter mates. Mean±SEM, unpaired t-test. n=14 litters, 18 wild type and 23 knock-out pups. Data information: *p < 0.05, **p < 0.01, ***p < 0.001.(c, d) Increased filopodia number in Pald1-/- mouse retina at vascular front, visualized by isolectinB4 staining (c). Scale bar: 50 μm. Quantification of filopodia per 100 µm at the vascular front (d). Mean±SEM, unpaired t-test. n=3 litters, 7 wild type and 5 knock-out pups. Data information: *p < 0.05, **p < 0.01, ***p < 0.001.(e, f) P5 retina vascular front (isolectinB4, green) and endothelial nuclei (Erg, red) (e). Scale bar: 100 μm. Magenta stippled square area quantified in (f). Vascular density was determined in the capillary bed (left) (11 wild type, 12 knock-out) and in area around veins (right) (10 wild type, 9 knock-out, biological replicates). Mean±SEM, unpaired t-test. Data information: *p < 0.05, **p < 0.01, ***p < 0.001.(g, h) pT202/pY204 Erk1/2 immunostaining (black) in Pald1+/+ and Pald1-/- P5 pups. IsolectinB4 (white) visualizes the entire vasculature. Scale bar: 100 μm. Quantification of pT202/pY204 Erk1/2 area (h) as in the black stippled square in (g) (400 µm from the retina rim), normalized to isolectinB4 area. Mean±SEM, unpaired t-test. n=5 litters, 14 wild type and 10 knock-out retinas per genotype. Data information: *p < 0.05, **p < 0.01, ***p < 0.001.(i) Quantitative real-time PCR analysis of P4-P5 retinas from Pald1+/+ and Pald1-/- pups. Ccnd1 transcript levels, normalized to Gapdh. Mean±SEM, unpaired t-test. n=10 Pald1+/+ and 14 Pald1-/- pups. Data information: *p < 0.05, **p < 0.01, ***p < 0.001.(j) Cyclin D1 (black) and isolectinB4 (white) staining of P5 retinas from Pald1+/+ and Pald1-/-pups. Scale bar: 100 µm.(k) Quantification of number of Cyclin D1 positive nuclei normalized for isolectinB4 area in retinas from Pald1+/+ and Pald1-/ P5 pups. Mean±SEM, unpaired t-test. n=7 Pald1+/+ and 6 Pald1-/- pups. Data information: *p < 0.05, **p < 0.01, ***p < 0.001.(l) Quantification of relative radial expansion in vehicle (n=2 litters, 5 Pald1+/+ and 4 Pald1-/- pups) and MEK inhibitor (U0126)-treated pups (n=4 litters, 7 Pald1+/+ and 5 Pald1-/- pups). MEK inhibitor/vehicle was administered twice at 12h interval at P4 and eyes collected at P5. Each dot is one mouse. Mean±SEM, one-way ANOVA, n=4-7. Data information: *p < 0.05, **p < 0.01, ***p < 0.001.(m) Quantification of the tip cell number in vehicle- (n=3 litters, 5 Pald1+/+ and 5 Pald1-/- pups) and MEK inhibitor (U0126)-treated pups (n=3 litters, 5 Pald1+/+ and 4 Pald1-/- pups). MEK inhibitor/vehicle administered twice at P5 at 2-h intervals, and eyes collected 2 h after the second injection. Each dot is one mouse. Mean±SEM, one-way ANOVA. Data information: *p < 0.05, **p < 0.01, ***p < 0.001.
Figure 5(a) Eyes from Pald1+/LacZ mice collected at P17 from untreated animals or animals with oxygen-induced retinopathy (OIR). Pald1-promoter driven LacZ expression and X-gal staining generated signals in capillaries, veins and arteries in the OIR retina at P17 compared to the normoxia control with predominantly arterial LacZ expression. Scale bar: 1 mm.(b) Paladin levels in primary human umbilical vein endothelial cells (HUVEC) untreated or treated for 24 h with VEGF-A (50 ng/ml), FGF2 (50 ng/ml), or SDF1α (30 ng/ml), quantified by immunoblotting for Paladin and β-actin (loading control). Mean±SEM, one way-ANOVA, n=5 biological replicates. Data information: *p < 0.05, **p < 0.01.(c) Eyes from adult Pald1LacZ/+ mice collected at 72 h after single-bolus intravitreal injection of 1 μg VEGF-A, and PBS in the contralateral eye, followed by X-gal staining. Arrow indicates Pald1 promoter activity in veins (outlined by dashed line) specifically after VEGF-A treatment. A, artery; V, vein. Scale bar: 100 μm.(d-f) Representative images of isolectinB4-stained P17 retinas from OIR-challenged Pald1+/+ and Pald1-/- mice (detailed view in the insets) (d). Scale bar: 1 mm (inset 250 µm). Quantification of neovascular tuft area (e) and avascular area (f). Each dot represents the mean of both retinas per mouse. Mean±SEM, unpaired t-test, n=3 litters, 4 Pald1+/+ and 3 Pald1-/- pups. Data information: *p < 0.05, **p < 0.01.g) Representative images of retina vasculature immunostained for isolectinB4 and pT202/pY204 Erk1/2 (pErk1/2). pErk1/2 staining within the vessels is also visualized using a 16-color heatmap to display staining intensity. Scale bar: 30 µm (inset 10µm). (h) Quantification of pErk1/2 immunostaining as shown in (g) within isolectinB4-positive vessels, as fold-change of pErk1/2 stained area. Each dot represents the mean of both retinas per mouse. Mean±SEM, unpaired t-test, n=3 litters, 5 Pald1+/+ and 5 Pald1-/- pups. Data information: *p < 0.05, **p < 0.01.
Figure 2A) Time course of biomass concentration. B) Time course of glucose concentration. Data information: The means for n = 3 biologically independent samples are shown. The error bars represent ± SD.. Note: although no nitrogen source was present in the medium, some minor growth (especially of the control and wild type strains) remained (A), which is a known phenomenon within the first hours of cultivation after nitrogen depletionC) Specific glucose (Glc) uptake rate and specific productivity for ethanol (Eth), acetate (Ace), formate (For), lactate (Lac), and succinate (Suc). Data information: The reaction rates in C were calculated from the beginning of cultivation until the last sampling time point where glucose was still present in the medium. The means and individual data for n = 3 biologically independent samples are shown. The error bars represent ± SD..
Figure 3For all growth regimes tested, the glucose uptake rate shows a biphasic response curve to increasing ATPase levels. Data information: The means for n = 3 biologically independent samples are shown. The error bars represent ± SD.
Figure 4Simulation of the PFK rate with varying ADP/(ATP+ADP) ratios. Data information: The PFK flux was simulated as single (isolated) reaction with the following fixed metabolite concentrations relevant for the kinetic rate law of the PFK PEP: 0.27 µmol/gDW; F6P: 0.91 µmol/gDW; FBP: 9.74 µmol/gDW ; total concentration ATP+ADP: 2.67 µmol/gDW.
Figure 5A) Comparison of the simulations of the kinetic model version 1 and version 2 with the measured exchange fluxes. Data information: For the measurements, the means for n = 3 biologically independent samples are shown and the error bars represent ± SD.B) Comparison of the simulations of the kinetic model version 1 and version 2 with the measured metabolite concentrations. Data information: For the measurements, the means for n = 3 biologically independent samples are shown and the error bars represent ± SD.
Figure 7A) Time course of biomass concentration. B) Time course of glucose concentration. C Data information: The means for n = 3 biologically independent samples are shown. The error bars represent ± SD. C) Specific glucose (Glc) uptake rate and specific productivity for ethanol (Eth), acetate (Ace), formate (For), lactate (Lac), and succinate (Suc). D) Yield of Eth, Ace, For, Lac, and Suc. Data information: The reaction rates in C were calculated for the exponential phase under assumption of quasi-steady state. The means ( and the means and individual data for n = 3 biologically independent samples are shown. The error bars represent ± SD.
Figure 2(A) Biochemical analyses of peptide interaction with TLR. BM-derived macrophages were incubated with 1µM fluorescently labeled rhodamine (Rho)-TLR2-p or its mutant Rho-ScrTLR2-p peptide. After 1h of incubation at 370C the cells were lysated. Soluble fraction was used for immunoprecipitation with the indicated TLR antibodies. Proteins samples were resolved by SDS-PAGE and the presence of the labeled peptide was detected with a fluorescent scanner. Subsequently, the gel was transferred to a membrane and subjected to Western blotting for TLR6,1,2 and 4 in the appropriate samples. Equal loading was measured by detecting of anti-tubulin in the cell lysate. The results are presented as the mean of fluorescent intensity from two independent experiments. Non-specific binding of the peptides to G protein beads was subtracted. The results are mean± S.E.M of at least two independent experiments.(B) Proteins analysis of secreted pro-inflammatory cytokines, IL-6 and TNF-α from primary CD115+ cells. Cells were incubated with 20µM of TLR2-p or scrTLR2-p peptide for 0.5h, then washed and incubated with LTA (5μg/ml), PAM3CSK (0.5μg/ml) or LPS (0.2μg/ml) at 370C for 5h (for TNF-α detection) and 22h (for IL-6 detection). The results are mean± S.E.M of two independent experiments (n=8).
Figure 3(B-C) Represented images of cellular interaction between TLR2 and TLR6 (A) and between F4/80 and TLR2 (B) in BM-derived macrophages with the indicated treatments were observed by Fluorescence Resonance Energy Transfer (FRET) using ImageStreamX. Scale bars 10μm. Cells were incubated with 20µM of TLR2-p or scrTLR2-p peptide for 0.5h, then washed and incubated with 500ng/ml LTA for another 0.5h at 370C. Cells were probed with anti TLR6-PE or anti F4/80-PE conjugated antibody (donor) and anti TLR2 antibody following by staining with APC-labeled secondary antibody (acceptor). PE intensity (middle panel) and FRET intensity (right panel) were measured via ImageStreanX imaging flow cytometer. The FRET intensity shown are mean ± S.E.M of two independent experiments (n=2579-15567).(D) Represented image of ERK1,2 phosphorylation levels in CD115+BM monocytes cells upon LTA exposure. Cells were pre-treated for 0.5h with 20µM of TLR2-p peptide, scrTLR2-p peptide or untreated, then washed and incubated with 500ng/ml LTA for the indicated times. ERK1,2 phosphorylation levels and total ERK1,2 levels were detected by western blotting. Equal loading was detected by measuring anti tubulin. Results are representative data of 2 independent experiments. The bands intensity was quantified for p-ERK levels after 15min of LTA exposure. Results are normalized to tubulin levels and are the mean of 2 experiments ± S.D.M.
Figure 4(B) Representative colonoscopy images of the indicated treatments (day 7). C57BL mice were treated with 2% of dextran sulfate sodium (DSS) in drinking water for 7 days. An amount of 5mg/Kg of TLR2-p and scrTLR2-p peptides were injected IP every following day from day one.(C) A graphical summary of endoscopic colitis grades assessed on day 7 after treated with DSS only, DSS with TLR2-p peptide, DSS with scrTLR2-p peptide and untreated mice (n= 19, 21, 22 and 19 respectively). Results represent 3 independent experiments, scale bars 100µm and 1000μm.(D) A graphical summary of changes in body weight (day 6) of the indicated groups.(E) Representative H&amp;amp;E histological images for distal colon section (day 7) of 9-10 sections from 2 independent experiments. Black asterisk indicates on large collection of blood in the lumen, arrowheads indicate on widespread mucosal collapse and ulceration and arrows indicates on edema in the sub mucosa.(F) A graphical summary of histological severity score of the indicated treatments.
Figure 5(A-B) Proteins and RNA samples of colon tissue were extracted from mice with the indicated treatments. (A) Cytokine levels of IL-6, IL-1β and INF-λ were determined by ELISA (n=4-7). Results represent two or more independent experiments.(A-B) Proteins and RNA samples of colon tissue were extracted from mice with the indicated treatments. (B) mRNA expression levels of IL-6, IL-12p35 and IL-23p19 were assessed by quantitative RT-PCR and normalized to TBP (n=4-6). Results represent two or more independent experiments.
Figure 7(B) Weight loss of DSS challenged mice on day 6.(C) Real-time PCR analysis showing mRNA expression levels of IL-6, IL-12p35 and IL-23p19 of FACS isolated monocytes collected from mice with the indicated treatments. Data are obtained from two to three independent experiments (n=6-7 mice pooled per group).
Figure 1E, F: EM images of negatively stained Dam1c alone (E) and in the presence of Bim1 (F), at low salt conditions. The final concentrations of Dam1c and Bim1 were 0.3 µM and 0.1 µM, respectively. The scale bars are 100 nm, boxes mark representative complexes shown as magnified inserts.
Figure 2B: Chromatogram and SDS-PAGE of elution fractions from gel filtration. Binding of Bim1 to Dam1∆SxIPc lacking the SxIP motif in the C-terminus of Duo1 was examined by analytical size exclusion chromatography. Elution fractions were analyzed by SDS-PAGE.C: Solid phase binding assay to test for binding of different Dam1 complexes to Bim1. Recombinant GST-Bim1185-344 was immobilized on glutathione sepharose beads and incubated with either recombinant Dam1WTc or Dam1∆SxIPc. Input and pull down samples were analyzed by SDS-PAGE.D: Pull down assay to compare binding of Dam1WTc and Dam1∆SxIPc to immobilized GST-Bim1185-344. Soluble cell lysates from yeast strains expressing the respective Duo1-6xFlag alleles were incubated with GST-Bim1185-344 immobilized on beads. Duo1-6xFlag bound to GST-Bim1185-344 was analyzed by western blot. An anti-Pgk1 antibody was used to confirm equal protein amounts in input samples.
Figure 3C: Representative images from fluorescence live cell microscopy of Dad1-GFP strains with Duo1WT-6xFlag or Duo1∆SxIP-6xFlag. Displayed cells are in either metaphase (left) or anaphase (right). Scale bar: 2 μm. D: Quantification of signal intensities of Dad1-GFP at metaphase and anaphase kinetochore clusters of Duo1WT-6xFlag and Duo1∆SxIP-6xFlag strains. Bars represent the mean +/- standard deviation. Each spot represents the value measured for a single kinetochore cluster. Values were normalized to the mean value of metaphase clusters of the Duo1WT-6xFlag strain. A one-way ANOVA test with Sidak's multiple comparisons test was used to calculate p values. n ≥ 76 kinetochore clusters.F: Analysis of cell cycle progression of yeast strains with different Duo1 alleles. Accumulation and degradation of Pds1 after release from α factor arrest was analyzed by western blot (left). An antibody against Pgk1 was used to confirm equal protein amounts in samples. The DNA content of the cell population at indicated time points after release from α factor arrest was analyzed by FACS (right). Cells in G1 phase and mitosis are characterized by a 1C and 2C DNA content, respectively. An intermediate DNA content is detected for cells in S phase.
Figure 4B: Representative images from live cell microscopy of Dam1WT and dam1-19 strains with Dad1-GFP. Displayed cells are in metaphase (left) or anaphase (right). Scale bar: 2 μm. C: Quantification of Dad1-GFP signal intensities at metaphase and anaphase kinetochore clusters of Dam1WT and dam1-19 strains. Bars represent the mean +/- standard deviation. Each spot represents the value measured for a single kinetochore cluster. Values were normalized to the mean value of metaphase clusters of the Dam1WT strain. p-values were obtained by a one-way ANOVA test with Sidak's multiple comparisons test. n ≥ 86 kinetochore clusters.E, F: GST-Bim1185-344 pull down assays. Binding of immobilized GST-Bim1185-344 to Duo1-6xFlag was analyzed in context of (E) selective inhibition of Mps1 (mps1-737) or overexpression of Mps1 from a galactose-inducible promotor (F). For inhibition of Mps1, cells were grown at the restrictive temperature of 37 °C. Overexpression of Mps1 was achieved by growing cells in medium containing galactose. GST-Bim1185-344 immobilized on glutathione sepharose beads were incubated with soluble cells lysates of the respective strains grown under the mentioned conditions. Binding of Duo1 was analyzed by western blot. Pgk1 indicates equal protein amounts in all samples.G: Live cell microscopy of a Dad1-GFP strain under conditions of Mps1 overexpression. The localization of Dam1c was visualized by Dad1-GFP in either an Mps1WT or Mps1 overexpression setup (pGal-Mps1). Ndc80-mRuby2 was used as reference point for the localization of kinetochores. Images show representative metaphase cells from both strains. The area in the white dashed box is shown as magnification in the lower left corner. White arrowheads point at nuclear microtubules decorated by Dad1-GFP. Please note that brightness and contrast of the Dad1-GFP image in the lower row were optimized to make the nuclear microtubules clearly visible. Scale bar: 2 μm.
Figure 5A, B: 5 µM, 7.5 µM or 10 µM Dam1WTc alone or in combination with respective concentrations of Bim1-Bik1 complex were analyzed by size exclusion chromatography. SDS-PAGE analysis of elution fractions is shown in B. High molecular weight species of Dam1WTc were eluted after 0.9 - 1.0 ml (see chromatogram in A).
Figure 6B: Pull down assay for analysis of Dam1c-Bim1 binding to Ndc80c. Ndc80c immobilized on beads was incubated with either Dam1c or Bim1 alone or with pre-formed Dam1c-Bim1 complex with increasing amounts of Bim1. Input and elution samples were analyzed by SDS-PAGE. LC and HC denote the light and heavy chains of the M2 anti-Flag antibody used for immobilization of Ndc80c on beads. Protein names in blue, red and green refer to Dam1c, Ndc80c and Bim1, respectively.D: Serial dilution assay of yeast strains with different Duo1 and Ndc80 alleles in an Ndc80-FRB-GFP background. Ndc80WT or Ndc80∆490-510 integration constructs were integrated at the LEU2 locus and combined with either the Duo1WT or Duo1∆SxIP allele (at DUO1 locus). Cells were spotted on YEPD medium without and with 1 µg/ml Rapamycin and incubated at the indicated temperatures.
Figure 7B: Serial dilution assay of yeast strains with 6xFlag-tagged Duo1WT or Duo1∆SxIP and Ask1WT, Ask12A or Ask12D. Cells were grown at the indicated temperatures and images were taken two days (25 °C, 30 °C and 37 °C) or four days (16 °C) after spotting.
f1a, alpha-KG extends the lifespan of adult worms in the metabolite longevity screen. All metabolites were given at a concentration of 8 mM.c, Dose-response curve of the α-KG effect on longevity.d, e, α-KG extends the lifespan of worms fed bacteria that have been ampicillin arrested, mean lifespan (days of adulthood) with vehicle treatment (mveh) = 19.4 (n = 80 animals tested), mα-KG = 25.1 (n = 91), P  0.0001 (log-rank test) (d); or γ-irradiation-killed, mveh = 19.0 (n = 88), mα-KG = 23.0 (n = 46), P  0.0001 (log-rank test) (e). OP50, E. coli OP50 strain.f alpha-KG does not further extend the lifespan of ogdh-1 RNAi worms, mveh = 21.2 (n = 98), mα-KG = 21.1 (n = 100), P = 0.65 (log-rank test).
f2a, DARTS identifies ATP5B as an alpha-KG-binding protein. Red arrowhead, protected band.b, DARTS confirms alpha-KG binding specifically to ATP5B. IB, immunoblot.c, Inhibition of ATP synthase by alpha-KG (released from octyl alpha-KG; Supplementary Notes). This inhibition was reversible (data not shown).d, e, Reduced ATP levels in octyl alpha-KG-treated normal humanfibroblasts (**P = 0.0016, ****P  0.0001; by t-test, two-tailed, two-sample unequal variance) (d)d, e, Reduced ATP levels in octyl alpha-KG-treated worms (day 2, P = 0.969; day 8, *P = 0.012; by t-test, two-tailed, two-sample unequal variance) (e). RLU, relative luminescence units.f, g, Decreased oxygen consumption rate (OCR) in octyl alpha-KG-treated cells (***P = 0.0004, ****P  0.0001; by t-test, two-tailed, two-sample unequal variance) (f)f, g, Decreased oxygen consumption rate (OCR) in octyl alpha-KG-treated worms (P  0.0001; by t-test, two-tailed, two-sample unequal variance) (g).h, alpha-KG, released from octyl alpha-KG (800 µM), decreases state 3, but not state 4o or 3u (P = 0.997), respiration in mitochondria isolated from mouse liver. The respiratory control ratio is decreased in the octyl alpha-KG- (3.1 ± 0.6) versus vehicle-treated mitochondria (5.2 ± 1.0) (*P = 0.015; by t-test, two-tailed, two-sample unequal variance). Oligo, oligomycin; FCCP, carbonyl cyanide-4-(trifluoromethoxy)phenylhydrazone; AA, antimycin A.i, Eadie-Hofstee plot of steady-state inhibition kinetics of ATP synthase by alpha-KG (produced by in situ hydrolysis of octyl alpha-KG). [S] is the substrate (ADP) concentration, and V is the initial velocity of ATP synthesis in the presence of 200 µM octanol (vehicle control) or octyl alpha-KG. alpha-KG (produced from octyl alpha-KG) decreases the apparent Vmax (53.9 to 26.7) and Km (25.9 to 15.4), by nonlinear regression least-squares fit. c-i, Results were replicated in two independent experiments. Mean ± standard deviation (s.d.) is plotted in all cases.
f3a-g, Effect of alpha-KG on the lifespan of mutant or RNAi worms. a, atp-2 RNAi, mveh = 22.8 (n = 97), mα-KG = 22.5 (n = 94), P = 0.35; or RNAi control, mveh = 18.6 (n = 94), mα-KG = 23.4 (n = 91), P  0.0001. b, daf-2(e1370), mveh = 38.0 (n = 72), mα-KG = 47.6 (n = 69), P  0.0001. c, eat-2(ad1116), mveh = 22.8 (n = 59), mα-KG = 22.9 (n = 40), P = 0.79. d, let-363 RNAi, mveh = 25.1 (n = 96), mα-KG = 25.7 (n = 74), P = 0.95; or gfp RNAi control, mveh = 20.2 (n = 99), mα-KG = 27.7 (n = 81), P  0.0001. e, daf-16(mu86), mveh = 13.4 (n = 71), mα-KG = 17.4 (n = 72), P  0.0001; or N2, mveh = 13.2 (n = 100), mα-KG = 22.3 (n = 104), P  0.0001. f, pha-4(zu225), mveh = 14.2 (n = 94), mα-KG = 13.5 (n = 109), P = 0.55. g, hif-1(ia4), mveh = 20.5 (n = 85), mα-KG = 26.0 (n = 71), P  0.0001; or N2, mveh = 21.5 (n = 101), mα-KG = 24.6 (n = 102), P  0.0001. P values were determined by the log-rank test. Number of independent experiments: RNAi control (6), atp-2 (2), let-363 (3), N2 (5), daf-2 (2), eat-2 (2), pha-4 (2), daf-16 (2), hif-1 (5).
f4a, Decreased phosphorylation of mammalian TOR substrates in U87 cells treated with octyl alpha-KG or oligomycin. Similar results were obtained in HEK-293 cells, normal human fibroblasts and mouse embryonic fibroblasts (data not shown). P, phospho.b, Increased autophagy in animals treated with alpha-KG or RNAi for atp-2 or let-363. Photographs were taken at ×100 magnification. c, GFP::LGG-1 puncta quantified using ImageJ (Methods). Data show results of 2-3 independent experiments. Bars indicate the mean. ****P  0.0001; NS, not significant (t-test, two-tailed, two-sample unequal variance).d, alpha-KG levels are increased in starved worms. **P  0.01 (t-test, two-tailed, two-sample unequal variance). Mean ± s.d. is plotted.