BRCA1 is a tumor suppressor gene that is associated with an increased risk of breast and ovarian cancer when mutated. Research in the BRCA1 field focuses on understanding the functions of the gene, how mutations in the gene lead to cancer development, and potential treatment options for individuals with BRCA1 mutations. Studies also explore the role of BRCA1 in DNA repair mechanisms and its interactions with other proteins involved in cancer development. Overall, research in the BRCA1 field aims to improve early detection, prevention, and treatment of hereditary breast and ovarian cancer.