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2 protocols using ab157106

1

Immunoblotting Procedure for Protein Expression

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Immunoblotting was performed as described (60 (link)). Briefly, cultured cells were lysed using radioimmunoprecipitation assay buffer supplemented with a protease inhibitor cocktail (Roche). Proteins were resolved with SDS–polyacrylamide gel electrophoresis, and after transfer to a nitrocellulose membrane were blocked in Odyssey blocking buffer (LI-COR). The following primary antibodies were used: human NAF1 (rabbit, ab157106, 1:1000; Abcam), mouse Naf1 (rabbit, Naf1 394, 1:250; Prosci), Myc (mouse, clone 4A6, 1:1000; Millipore), human dyskerin (rabbit, sc-48794, 1:250; Santa Cruz Biotechnology), and green fluorescent protein (mouse, 7.1 and 13.1, 1:1000; Roche) with loading controls actin (mouse, ab8226, 1:2000; Abcam), tubulin (rabbit, ab6046, 1:5000; Abcam), PARP (rabbit, 9542S, 1:1000; Cell Signaling Technology), or GAPDH (mouse, mAbcam9498, 1:1000; Abcam). Secondary antibodies were conjugated to dyes IR680 or IR800 (donkey, 1:10,000; LI-COR), and blots were visualized using an Odyssey scanner (LI-COR), with exception of the mouse Naf1 antibody that was visualized by horseradish peroxidase–linked antibody (rabbit, 7074, 1:10,000; Cell Signaling Technology) and enhanced chemiluminescent substrate (Thermo Scientific). Cell fractionation was performed using NE-PER Nuclear and Cytoplasmic Extraction Reagents (Thermo Scientific).
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2

Western Blot Analysis of Protein Signaling

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Total cell and tissue lysates were prepared in 1× sodium dodecyl sulphate (SDS) buffer. Identical quantities of protein were separated by SDS gel electrophoresis and transferred onto nitrocellulose filter membranes. After incubating with antibodies specific for QPCT (ab201172, Abcam, CA, USA) and GAPDH (sc-25778; Santa Cruz, CA, USA), the blots were incubated with IRDye 800-conjugated goat anti-rabbit IgG, and bands were detected using an Odyssey infrared scanner (Li-Cor). GAPDH was used as the loading control. The other antibodies used for western blot were against IRS1 (ab52167, Abcam, CA, USA), NF-κB (p65) (8242, Cell Signalling Technology), HRAS (ab32417, Abcam, CA, USA), CBL (ab32027, Abcam, CA, USA), GAB1 (ab59362, Abcam, CA, USA), NAF1 (ab157106, Abcam, CA, USA), MAPK8 (ab199380, Abcam, CA, USA), MAPK10 (ab126591, Abcam, CA, USA), FAK (PTK2) (ab40794, Abcam, CA, USA), p-FAK (ab81298, Abcam, CA, USA), ERK1/2 (4695, Cell Signaling Technology), p-ERK1/2 (4370, Cell Signaling Technology), AKT (4691, Cell Signaling Technology), p-AKT (4060, Cell Signaling Technology), Stat3 (9139, Cell Signaling Technology), p-Stat3 (9145, Cell Signaling Technology), and ubiquitin (3936, Cell Signaling Technology).
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