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3 protocols using ap1062

1

AMPK Activation Pathway Analysis

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Samples were lysed in Laemmli buffer, separated by polyacrylamide gel electrophoresis (SDS-PAGE), and transferred to an Immobilon polyvinylidene fluoride membrane (Millipore). Antibodies against adenosine monophosphate-activated protein kinase (AMPK, Cell Signaling, 2532S), phosphorylated AMPK (pAMPK, Cell Signaling, 2532S), Phosphorylated E1α (Cal Biochem, AP1062) and actin (Abcam, ab6276) were used.
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2

Western Blot Quantification Protocol

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Protein concentrations were determined using a Pierce MicroBCA kit (ThemoFisher), and 40 μg of protein was loaded into the lanes of precast criterion 4–15% tris-glycine gels (Bio-Rad) and electrophoresed. Proteins were then transferred to Immobilon PVDF membranes (MilliporeSigma). Membranes were blocked with 5% BSA in TBS-T for at least 1 h at room temperature. Primary antibodies were used at 1:1000 dilution in 5% BSA-TBS-T overnight; then, membranes were washed 3× in TBS-T and subjected to LiCor near-IR secondary antibodies at 1:10,000 dilution in 5% BSA-TBS-T for 1 h. After washing 3× in TBS-T, membranes were developed using a LiCor Odyssey imaging system. Antibodies used were anti-mCherry (Cell Signaling 43590S), anti-MPC2 (Cell Signaling 46141S), anti-phosphorylated PDH E1α S232, S293, and S300 (MilliporeSigma AP1062, AP1063, AP1064), anti-PDH Cocktail (Abcam ab110416), and anti-αTubulin (Sigma T5168); secondary antibodies used were anti-rabbit or anti-mouse IRDYE donkey 800CW (LiCor 926-32213 or 92632212). Full, un-cropped western blot images are provided in Supplemental Figure S1.
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3

Immunoblot Analysis of PDK and PDH

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Immunoblots were performed with SDS-polyacrylamide gel electrophoresis as previously described and analyzed using ImageJ (National Institutes of Health) (12, 25) . Antibodies used were as follows: PDK1 (Abcam, ab110025; detected at 49 kDa), PDK2 (Abcam, ab68164; detected at 46 kDa), PDH-E1a (Abcam, ab168379; detected at 43 kDa), phospho-Ser 293 -PDH-E1a (EMD Millipore, AP1062; detected at 44 kDa), and actin (Abcam, ab3280; detected at 42 kDa). The PDK-PDH antibodies have been validated in a recent publication (52) .
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