The BRCA-1 antibody gene codes for a nuclear phosphoprotein that plays a role in maintaining genomic stability and acts as a tumor suppressor. Findings suggest that BRCA-1 antibody plays a protective role in epithelial cells undergoing high levels of proliferation in association with differentiation. Additional studies have shown that the complete loss of BRCA-1 nuclear expression and the correlation with poor prognostic markers in breast cancer imply that the altered BRCA-1 phenotype may provide an added prognostic parameter for breast cancer and could be applied as a potential rapid screening technique for BRCA-1 mutations.
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