BRCA1, which functions as a tumor suppressor in human breast cancer cells, is a nuclear phosphoprotein which associates with RNA polymerase II holoenzyme. Mutations in BRCA1 are predicted to be responsible for approximately 45% of inherited breast cancer and more than 80% of inherited breast and ovarian cancer. BRCA1 may function as a transcriptional regulator, due to an amino terminal DNA-binding ring finger motif, nuclear localization signals, and an acidic carboxy terminal domain. BRCA1 is also a granin-like protein that functions as a secreted growth inhibitory protein. BRCA1 may normally serve as a negative regulator of mammary epithelial cell growth. This function is compromised in breast cancer either by direct mutation or by alterations in gene expression.1) Mark, W.Y., et al., (2005) J. Mol. Biol. 345 (2), 275-287.
Immunogen
Antibody produced in rabbits immunized with a synthetic peptide corresponding a region of human BRCA1.
For short periods of storage (days) store at 4˚C. For longer periods of storage, store BRCA1 antibody at -20˚C. As with any antibody avoid repeat freeze-thaw cycles.
Storage Buffer
Antibody is lyophilized in PBS buffer with 2% sucrose.. Final antibody concentration is 1 mg/mL.