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4 protocols using ab94571

1

Comprehensive Protein Expression Analysis

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Confluent cells were lysed in 50 mM Tris-HCl (pH 8.0), 150 mM NaCl, 1 mM EDTA, 1% Igepal (MP Biomedicals), 0.5% deoxycholate (Sigma Aldrich), and 0.1% SDS with Complete Mini protease inhibitor cocktail and phosphatase inhibitor cocktail (Roche) and stored at −80°C until analyzed. A431 control cell lysate (ab7909) was purchased from Abcam. Aliquots were run on 10% sodium dodecyl sulfate polyacrylamide gel electrophoresis gels and blotted to Hybond-ECL membranes (GE Healthcare). Proteins were detected with primary antibodies against CAR (1:500, H-300, Santa Cruz Biotechnology Inc.), CD46 (1:500), DSG-2 (1:500), S100 (1:500, ab868, Abcam), p53 (1:500, ab131442, Abcam), EGFR (1:200, ab2430, Abcam), isocitrate dehydrogenase (wild-type IDH1, 1:600, ab94571, Abcam), IDH1 R132H (the most common IDH1 mutant, 1:500, DIA-H09, Dianova, USA), MGMT (1:1000, ab108630, Abcam), and β-actin (1:2500, C4, Santa Cruz Biotechnology). Blots were developed with anti-rabbit-Cy5 and anti-mouse-Cy3 secondary antibodies of Amersham ECL Plex Western blotting system (GE Healthcare).
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2

Quantifying Metabolic Enzyme Profiles

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Whole cells/spheroids or mitochondrial lysates were prepared in RIPA buffer and quantified using the BCA Protein Assay (Thermo Scientific). Proteins were separated on 4–20% SDS-PAGE gels, transferred to PVDF membranes, and probed with antibodies against IDH1 (ab94571), IDH2 (ab55271), IDH3 (ab58641) from Abcam, PDHα (#459400, Theromo), PDHα-pSer293 (AP1062), GAPDH (AB2302) from Millipore, PDK1 (#3820), Hif1α(#3716) from Cell Signaling, CTP (sc-86392), AIF (sc-13116) from Santa Cruz Biotechnology and Actin (A3853, Sigma).
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3

Metabolic Enzyme Profiling in Cellular Systems

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Antibodies to citrate synthetase (ab96600), GAPDH (ab8245), IDH1 (ab94571), and IDH2 (ab55271) were from Abcam. Anti-Tubulin Antibody (MAB1637) was from EMD Millipore. IRDye 680RD goat anti-rabbit (926–68071) and IRDye 800CW goat anti-mouse (926–32210) secondary antibodies were from LI-COR. Primary and secondary antibodies were used at 1:1000 and 1:15,000 dilutions, respectively. Digitonin (D141), α-ketoglutaric acid (K3752), citric acid (C7129), malic acid (M1000), and sodium dichloroacetate (347795) were purchased from Sigma; glutamic acid (41–217–25)—from Biological Industries. [U-13C]-glutamine (CLM-1822-H-0.1), [1-13C]-glutamine (CLM-3612), and [U-13C]-glucose (CLM-1396-1) were purchased from Cambridge Isotope Laboratories.
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4

Quantifying Metabolic Enzyme Profiles

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Whole cells/spheroids or mitochondrial lysates were prepared in RIPA buffer and quantified using the BCA Protein Assay (Thermo Scientific). Proteins were separated on 4–20% SDS-PAGE gels, transferred to PVDF membranes, and probed with antibodies against IDH1 (ab94571), IDH2 (ab55271), IDH3 (ab58641) from Abcam, PDHα (#459400, Theromo), PDHα-pSer293 (AP1062), GAPDH (AB2302) from Millipore, PDK1 (#3820), Hif1α(#3716) from Cell Signaling, CTP (sc-86392), AIF (sc-13116) from Santa Cruz Biotechnology and Actin (A3853, Sigma).
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