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3 protocols using mouse hsc70

1

Western Blot Analysis of APC and HSC70

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Cells were lysed in RIPA buffer (Sigma-Aldrich) supplemented with Complete Protease Inhibitor Cocktail (Roche). Equal amounts of proteins were prepared with NuPAGE LDS Sample Buffer and Reducing Agent (Life Technologies), separated on NuPAGE Novex 3–8% Tris-Acetate Gels (Life Technologies), and transferred on nitrocellulose membranes (Bio-Rad Laboratories, Inc.). After blocking in 5% milk and 0.1% Tween-20/TBS, membranes were incubated with primary antibodies overnight and then with HRP-conjugated secondary antibodies for 1 h. Specific signals were detected with a chemiluminescence system (GE Healthcare). The following primary antibodies were used: rabbit APC (provided by K. Neufeld, University of Kansas, Lawrence, KS) and mouse HSC70 (Santa Cruz Biotechnology, Inc.).
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2

Immunoblotting analysis of mitotic regulators

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Cell lysis, SDS-PAGE, and Western blotting were as previously described (Hames et al., 2005 (link)). For Western blotting, primary antibodies used were 1 µg/ml rabbit Nek6 (O’Regan and Fry, 2009 (link)), 1 µg/ml rabbit Nek7 (O’Regan and Fry, 2009 (link)), 0.3 µg/ml mouse α-tubulin (Sigma-Aldrich), 0.5 µg/ml mouse Flag (Sigma-Aldrich), 0.5 µg/ml mouse Hsp70 (Santa Cruz Biotechnology, Inc.), 0.5 µg/ml mouse Hsp72 (Enzo Life Sciences), 0.5 µg/ml mouse Hsc70 (Santa Cruz Biotechnology, Inc.), 1 µg/ml rabbit pHsp70 (this study), 0.8 µg/ml goat Nek9 (Santa Cruz Biotechnology, Inc.), 1 µg/ml rabbit GAPDH (Cell Signaling Technology), 1 µg/ml mouse phospho–histone H3 (EMD Millipore), 0.2 µg/ml rabbit γ-tubulin (Sigma-Aldrich), 0.4 µg/ml mouse TACC3 (Abcam), 0.5 µg/ml rabbit ch-TOG (Bethyl Laboratories, Inc.), and 1 µg/ml mouse Cep55 (Santa Cruz Biotechnology, Inc.). Nek7 antibodies were raised against a peptide corresponding to amino acid residues 12–28 conjugated to keyhole limpet hemocyanin via an N-terminal cysteine (C-OVPQFQPQKALRPDM). Secondary antibodies were HRP-labeled anti–mouse, anti–rabbit, or anti–goat IgGs (1:1,000; Sigma-Aldrich) or alkaline phosphatase–conjugated IgGs (1:7,500; Promega). HRP-labeled blots were detected by enhanced chemiluminescence (Thermo Fisher Scientific).
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3

Renal Cortex Protein Extraction and Analysis

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Homogenates from the frozen renal cortex were prepared in 500 µL lysis buffer containing 0.1% sodium dodecyl sulfate (SDS), 0.5% sodium deoxycholate, 150 mM sodium chloride, 50 mM Tris-hydrochloride, 100 mM EDTA, 1% Tergitol (NP40), 100 mM PMSF, 1× of protease inhibitor cocktail containing aprotinin and leupeptin and phosphatase inhibitors cocktail (Bio-world). Homogenates were incubated for 1 h at 4 °C and centrifuged at 10,000× g for 30 min at 4 °C. Proteins concentrations in the supernatants were measured using the Lowry quantification method (Bio-rad Laboratory, Hercules, CA, USA). For immunoblotting, proteins (40 μg) were separated on 12.5% polyacrylamide SDS-gel electrophoresis and transferred to nitrocellulose membranes. Blots were incubated with rabbit anti-CYP4A (1:500; Abcam, Cambridge, UK), and Mouse HSC-70 (1:1000; Santa Cruz Biotechnology, Dallas, TX, USA) was used as a loading control. The primary antibodies were detected using horseradish peroxidase-conjugated IgG. Enhanced chemiluminescence helped in visualizing the bands. Densitometric analysis was performed using Image J software (1.53 e, U.S. National Institutes of Health, Bethesda, MD, USA).
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