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3 protocols using n biotinoyl n iodoacetyl ethylenediamine biam

1

Metabolic Regulation in Cancer Cells

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Unless specified, all reagents were obtained from Sigma and all the antibodies were from Santa Cruz Biotechnology, except for anti-HIF-1α (Becton Dickinson), anti-PKM2 and anti-Src-Tyr416 (Cell Signaling Technology) and anti phospho-Tyr (clone 4G10) (Millipore). HRP-conjugated streptavidin was from Pierce. HIF-1-siRNA and DEC1-siRNA were from Santa Cruz Biotechnology. N-(biotinoyl)-N-(iodoacetyl)ethylenediamine (BIAM) and 2′-7′-dichlorofluoresceindiacetate (H2-DCF-DA) were from Molecular Probe. [U-14C] lactate and [U-14C] glucose were from Perkin Elmer. All the kits used to perform miRNA extraction and quantitative reverse transcriptase PCR were from Qiagen. Lipofectamine 2000 was from Invitrogen. Metformin was obtained by Sigma. The chemical synthesis of the PKM2 activator DASA-58 was kindly performed by Dr. Richichi of the Department of Chemistry (University of Florence). The mitochondrial antioxidant MitoTEMPO was from Santa Cruz Biotechnology. The MCT1 inhibitor, AR-C155858, was from Tocris Bioscience.
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2

Enzymatic Assays for Oxidative Stress

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Purified rat liver TrxR1, recombinant
human Trx1, and glutathione reductase (GR), recombinant E.
coli
Trx1, bovine glutathione peroxidase (GPx), insulin,
NADPH, 5,5′-dithiobis(2-nitrobenzoic acid) (DTNB), APAP, NAPQI,
menadione (2-methyl-1,4-napthoquinone), reduced glutathione (GSH),
oxidized glutathione (GSSG), phosphatase inhibitors (catalog no. P2850,
which contains microcystinLR, cantharidin, and (−)-p-bromotetramisole), and protease inhibitor cocktail (catalog
no. P2714, which contains 4-(2-aminoethyl)benzenesulfonyl fluoride,
E-64, bestatin, leupeptin, aprotinin, and EDTA) were purchased from
Sigma-Aldrich (St. Louis, MO). Sodium aurothiomalate hydrate was from
Aldrich (Milwaukee, WI). Human recombinant TrxR mutant enzyme (Sec498Cys)
was from AbFrontier (Seoul, Korea). Pooled human liver microsomes
(HLM) and recombinant human P450s 1A2, 2E1, and 3A4 were purchased
from BD Genetest (Woburn, MA). N-(Biotinoyl)-N′-(iodoacetyl) ethylenediamine (BIAM) was from Molecular
Probes (Eugene, OR) and horseradish peroxidase (HRP)-conjugated streptavidin
from GE Healthcare (Piscataway, NJ). Enhanced chemiluminescence (ECL)
immunoblot detection reagents were from Thermo Scientific (Rockford,
IL).
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3

Enzyme Kinetics of Redox Regulators

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Purified rat liver TrxR1, recombinant human Trx1 and glutathione
reductase (GR), recombinant E. coli Trx1, bovine glutathione
peroxidase (GPx), insulin, NADPH, 5,5′-dithiobis(2-nitrobenzoic acid)
(DTNB), APAP, NAPQI, menadione (2-methyl-1,4-napthoquinone), reduced glutathione
(GSH), oxidized glutathione (GSSG), phosphatase inhibitors (catalog no. P2850,
which contains microcystinLR, cantharidin, and
(−)-p-bromotetramisole) and protease inhibitor cocktail
(catalog no. P2714, which contains 4-(2-aminoethyl)benzenesulfonyl fluoride,
E-64, bestatin, leupeptin, aprotinin, and EDTA) were purchased from
Sigma-Aldrich (St. Louis, MO). Sodium aurothiomalate hydrate was from Aldrich
(Milwaukee, WI). Human recombinant TrxR mutant enzyme (Sec498Cys) was from
AbFrontier (Seoul, Korea). Pooled human liver microsomes (HLM) and recombinant
human P450s 1A2, 2E1, and 3A4 were purchased from BD Genetest (Woburn, MA).
N-(Biotinoyl)-N′-(iodoacetyl)
ethylenediamine (BIAM) was from Molecular Probes (Eugene, OR) and horseradish
peroxidase (HRP)-conjugated streptavidin from GE Healthcare (Piscataway, NJ).
Enhanced chemiluminescence (ECL) immunoblot detection reagents were from Thermo
Scientific (Rockford, IL).
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