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3 protocols using ndufs1

1

Mitochondrial Protein Analysis by SDS-PAGE

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Mitochondrial fractions were subjected to sodium dodecyl sulfate–polyacrylamide gel electrophoresis (PAGE). Thirty micrograms of mitochondrial protein was separated on 4%–12% Bis-Tris gradient gels (Life Technologies, Carlsbad, CA) and transferred to polyvinylidene fluoride membranes as described.27 (link) The membranes were incubated with primary antibodies against IBA57 (Sigma, St. Louis, MO), VDAC1 (Abcam, Cambridge, UK), LA (Calbiochem, San Diego, CA), NDUFS1, NDUFS8, NDUFV1, SDHB, and UQCRFS1 (all from GeneTex, Irvine, CA). Protein levels of IBA57 and ISC were quantified with ImageJ software (National Institutes of Health, Bethesda, MD).
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2

Comprehensive Western Blot Analysis

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Western blot was performed using primary antibodies raised against COX7A2L (ProteinTech), Myc (Origene), turbo-GFP (Origene), HA (Roche), β-actin (Sigma), and against the following human OXPHOS subunits: NDUFS1 (GeneTex); NDUFA9, NDUFB8, CORE2, RISP, CYC1, UQCRB, UQCRQ, COX1, COX4, COX5A, COX6C, SDHA, SDHB (Mitosciences); and COX5B (Santa Cruz). Peroxidase-conjugated anti-mouse and anti-rabbit IgGs were used as secondary antibodies (Molecular Probes). Immunoreactive bands were detected with an ECL prime Western Blotting Detection Reagent (Amersham) in a ChemiDoc™ MP Imager (Biorad). Optical densities of the immunoreactive bands were measured using the ImageLab™ (Biorad) and ImageJ analysis softwares.
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3

OXPHOS Protein Expression Analysis

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Cells were treated with MO as indicated concentrations for 48 h. The protein expression level of OXPHOS complexes were determined by western blot following the procedures described previously [11 (link)], without heating up the samples. The total OXPHOS human WB antibody cocktail was purchased from Abcam (ab110411). NDUFS1 was purchased from Genetex (GTX113787).
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