The article focuses on the purification of the breast cancer type 2 susceptibility proteins (BRCA2). It claims that the purification which is crucial for deoxyribonucleic acid (DNA) repair sets the stage for future studies in revealing the complete function of the large protein in homologous recombination. It adds that BRCA2 is a suppressor protein of ovarian and breast tumors, wherein the encoding gene mutated frequently in familial breast cancer patients and with Fanconi anemia.