Detection of Human Phospho-BRCA1 (S1423) by Western Blot. Western blot shows lysates of U2OS human osteosarcoma cell line mock treated or exposed to 10 Gy IR for 1 hour. PVDF membrane was probed with 0.5 µg/mL Rabbit Anti-Human Phospho-BRCA1 (S1423) Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1386) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band for Phospho-BRCA1 (S1423) was detected at approximately 220 kDa (as indicated). The phospho-specificity of this antibody was supported by decreased labeling following treatment with 600 U lambda -phosphatase ( lambda -PPase) for 1 hour. This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
The BRCA1 (BReast CAncer gene 1) tumor suppressor protein has many reported functions. In addition to mediating signal transduction in DNA damage and repair responses, BRCA1 regulates transcriptional activity and assists in the preservation of chromosomal stability. BRCA1 is phosphorylated at S1423 by the ATM (Ataxia‑Telangiectasia Mutated) and ATR (ATM-and Rad3-related) protein kinases in response to genotoxic stress.
Breast Cancer 1
Entrez Gene IDs:
672 (Human); 12189 (Mouse); 497672 (Rat)
BRCA1; BRCAI; breast and ovarian cancer susceptibility protein 1; breast and ovarian cancer sususceptibility protein; breast cancer 1, early onset; breast cancer type 1 susceptibility protein; EC 6.3.2; EC 6.3.2.-; IRIS; PNCA4; PSCP; subunit 1
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