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4 protocols using pampkα1 α2

1

Metformin Regulates AMPK and SIRT1

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Metformin was obtained from Enzo Life Sciences (Farmingdale, NY) Primary antibodies for AMPKα1/α2 and pAMPKα1/α2 were obtained from Cell Signaling Technology (Danvers, MA). Primary antibodies for SIRT1, GAPDH and PGC1-α were obtained from Abcam (Cambridge, MA). The Odyssey blocking buffer, LI-COR goat anti-rabbit IR-800 and goat anti-mouse IR-680 antibodies, and the 4X Protein Sample Loading Buffer were obtained from LI-COR Biotechnology (Lincoln, NE). The NuPAGE® LDS Sample Buffer (4X), and Western blot gels were purchased from Life Technologies (Grand Island, NY). All other chemicals were obtained from Sigma-Aldrich (St. Louis, MO).
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2

Quantitative Immunoblotting of AMPK Signaling

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Primary antibodies were used in the indicated dilutions: PARP (#9542, Cell Signaling) 1:1000, α-Tubulin (#B-5-1-2, Santa Cruz) 1:2500, pACC (#3661, Cell Signaling) 1:2000, tACC (#3676, Cell Signaling) 1:2000, pRAPTOR (#2083, Cell Signaling) 1:1000, tRAPTOR (#2280, Cell Signaling) 1:1000, pAMPKα1α2 (#2531, Cell Signaling) 1:1000, AMPKα1α2 (#2532, Cell Signaling) 1:1000, AMPKα2 (#AF2850, R&D systems) 1:1000, and AMPKα1 (#2795, Cell Signaling) 1:1000. Anti-mouse, and anti-rabbit secondary antibodies conjugated to Alexa Fluor 680 (Invitrogen, Carlsbad, CA) or IRDye800, and IRDye680LT were used at 1:5000-1:10,000 dilutions. Additional reagents included recombinant AMPKα1β1γ1 (#P47-10H, SignalChem) and AMPKα2β1γ1 (#P48-10H, SignalChem), SAMS peptide (S07-58, Cquential Solutions), and radioactive α-32P-ATP (64014, MPBIo).
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3

Metformin Regulation of AMPK Signaling

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Metformin was obtained from Enzo Life Sciences (Farmingdale, NY). Primary antibodies for AMPKα1/α2 and pAMPKα1/α2 were obtained from Cell Signaling Technology (Danvers, MA). Primary antibodies for LKB1, pLKB1 and β-actin were obtained from Santa Cruz Biotechnology (Dallas, TX). Primary antibody for PGC1-α was obtained from Abcam (Cambridge, MA). The Odyssey blocking buffer, LI-COR goat anti-rabbit IR-800 and goat anti-mouse IR-680 antibodies, and the 4× Protein Sample Loading Buffer were obtained from LI-COR Biotechnology (Lincoln, NE). The Multiplex Luminex Array kit, the NuPAGE® LDS Sample Buffer (4×), and Western blot gels were purchased from Life Technologies (Grand Island, NY). All other chemicals were obtained from Sigma-Aldrich (St. Louis, MO).
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4

AICAR Signaling Pathway Analysis

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The AMP analog, AICAR, was obtained from LC Laboratories (Woburn, MA). Primary antibodies for AMPKα1/α2, pAMPKα1/α2, and LC3B-I and LC3B-II were obtained from Cell Signaling Technology (Danvers, MA). Primary antibodies for GAPDH and for PGC1-α were obtained from Abcam (Cambridge, MA). The Odyssey blocking buffer, LI-COR goat anti-rabbit IR-800 and goat anti-mouse IR-680 antibodies, and the 4× Protein Sample Loading Buffer were obtained from LI-COR Biotechnology (Lincoln, NE). The NuPAGE® LDS Sample Buffer (4×), and Western blot gels were purchased from Life Technologies (Grand Island, NY). All other chemicals were obtained from Sigma-Aldrich (St. Louis, MO).
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