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6 protocols using anti gh2ax

1

Comprehensive Immunoblotting Methodology

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Immunoblotting was performed as described previously (35 (link)). The following antibodies were used at a concentration of 0.1 to 0.5 μg/ml: anti-pMCM2 (3378-1; Epitomics Inc.), anti-MCM2 (sc-9839; Santa Cruz Biotechnology), anti–pPOL II (04-1571; Millipore), anti–POL II (05-952; Millipore), anti-Lamin B1 (ab16048; Abcam), anti-FANCD2 (sc-20022; Santa Cruz Biotechnology), anti-pCDC6 (ab76422; Abcam), anti-CDC6 (ab109315; Abcam), pChk1 (#2348; Cell Signaling Technology), anti-Chk1 (#2345; Cell Signaling Technology), anti-pCDK1 (#9111; Cell Signaling Technology), anti-CDK1 (sc-954; Santa Cruz Biotechnology), anti-gH2AX (#2577; Cell Signaling Technology), anti-PARP1 (#9542; Cell Signaling Technology), anti–cyclin B1 (sc-752; Santa Cruz Biotechnology), anti-CDC7 (sc-56274; Santa Cruz Biotechnology), anti-DBF4 (ab124707; Abcam), and anti-GAPDH (MAB374; Chemicon). Immunoblotted proteins were visualized by chemiluminescence.
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2

Western Blotting of Cell Extracts

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For Western blotting, cells were washed in PBS, scraped in SDS gel-loading buffer, and boiled for 5 min. Proteins of total extracts were separated by SDS-PAGE and transferred to nitrocellulose membranes. Monoclonal antibody against HA was purchased from BioLegend. Anti-HA goat was from Bethyl Laboratories. Anti-emerin and anti-lamin A/C antibodies were from Abcam and Cell Signaling. Anti-tubulin, anti-gH2AX, and anti-ERK were from Cell Signaling. Anti-GAPDH, anti-actin, anti-lamin B, anti-RanGAP, anti-RanBP, and anti-phospho-ERK antibodies were from Santa Cruz Biotechnology. Anti-VP24 was from Biorbyt. Anti-VP35 and anti-NP were from Genetex. Anti-BAF antibody was from Abcam.
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3

Immunoblotting of Cell Signaling Proteins

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Immunoblotting was performed as described previously (44 (link)). The following antibodies were used at 0.1 to 0.5 μg/ml: anti-pMCM2 (3378-1; Epitomics Inc.), anti-MCM2 (sc-9839; Santa Cruz Biotechnology), pChk1 (#2348; Cell Signaling Technology), anti-Chk1 (#2345; Cell Signaling Technology), anti-pCDK1 (#9111; Cell Signaling Technology), anti-CDK1 (sc-954; Santa Cruz Biotechnology), anti-pBRCA1 (#9009; Cell Signaling Technology), anti-pp53 (#9286; Cell Signaling Technology), anti-pATM (2152-1; Epitomics Inc.), anti-p21 (#2947; Cell Signaling Technology), anti-gH2AX (#2577; Cell Signaling Technology), anti-p53 (sc-126; Santa Cruz Biotechnology), anti-PARP1 (#9542; Cell Signaling Technology), anti-BRCA1 (sc-6954; Santa Cruz Biotechnology), anti-CDC7 (sc-56274; Santa Cruz Biotechnology), anti-DBF4 (ab124707; Abcam), and anti-GAPDH (glyceraldehyde-3-phosphate dehydrogenase) (MAB374; Chemicon). Immunoblotted proteins were visualized using chemiluminescence.
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4

Comprehensive Western Blot and Immunofluorescence Analysis of DNA Damage Response Proteins

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For western blot of endogenous proteins, anti-gH2AX (Cell Signaling Technology (CST), MA #9718, 1:1000), anti-Actin B (CST, MA #4970, 1:1000), anti-p-ATM S1981 (CST, MA #13050, 1:1000), anti-total ATM (CST, MA #2873, 1:1000), anti-total H2AX (CST, MA #2595, 1:1000), anti-RING1A (CST, MA #13069, 1:1000), anti-RING1B (Santa Cruz (SC), CA sc-101109, 1:1000), anti-H2AK119ub1 (CST, MA #8240,1:1000), anti-XPC ( SC, CA sc-74410, 1:1000), anti-lamin B (SC, CA sc-6216, 1:1000 ; SC, CA sc-374015, 1:1000), anti-XPA (SC, CA sc-28353, 1:1000), anti-pRPA32 S33 (Bethyl Laboratories, TX A300-246A-M, 1:1000), anti-RPA32 (CST, MA #2208,1:1000), antiphospho-Chk1 S345 (CST, MA #2348, 1:1000) and anti-total Chk1 (CST, MA #2360, 1:1000) antibodies were used. For immunofluorescence, anti-gH2AX (CST,MA #9718, 1:100), anti-RING1A (Abcam, CA ab175149, 1:100), anti-RPA32 (CST, MA #2208, 1:100), anti-Rad51 (Novus biological, CO NB100-148, 1:100), anti-H2AK119ub1 (Millipore Sigma, MA 05-678,1:100) and secondary Alexa Conjugate (CST, MA rat #4416, 1:1000, mouse #8890, 1:500, rabbit #4412, 1:1000 and, rabbit #8889,1:500) antibodies were used.
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5

DNA Damage Assessment by γ-H2AX Foci

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The cells were seeded on coverslips in 24-well plates and treated with cisplatin. After incubation with a drug-free medium for the indicated time, cells were fixed with 4% paraformaldehyde and permeabilized with 0.5% Triton X-100. Then, the cells were blocked with 3% bovine serum albumin and immunostained overnight with antig-H2AX (Cell Signaling Technology, 9718). Subsequently, the cells were incubated with a Cy3-conjugated secondary antibody and counterstained with DAPI (Roche). Images were captured using an A1-Si Nikon confocal laser scanning microscope. Only those cells with five or more foci were considered g-H2AX foci positive.
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6

Antibody detection of apoptosis markers

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Antibodies against IGFBP3 (sc-9028) and b-actin (sc-47778) were purchased from Santa Cruz Biotechnology. Anti-caspase-3, anti-poly (ADP-ribose) polymerase (anti-PARP), and anti-gH2AX antibodies were purchased from Cell Signaling Technology.
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