Orthologs, styled Brca1 and Brca1, are common in other mammal species. BRCA1 is a human tumor suppressor gene (to be specific, a caretaker gene), found in all humans; its protein, also called by the synonym breast cancer type 1 susceptibility protein, is responsible for repairing DNA.he official symbol (BRCA1, italic for the gene, nonitalic for the protein) and the official name (breast cancer 1, early onset) are maintained by the HGNC.
Two types of lymphocyte are produced in the bone marrow before birth. B lymphocytes, also called B cells, stay within the bone marrow until they are mature. Once mature, they spread throughout the body and concentrate in the spleen and lymph nodes.wo types of lymphocyte are produced in the bone marrow before birth. A large number of lymphocytes can be found in the lymph nodes. Tuberculosis may cause a low lymphocyte count. Lymphocytes are found in the blood, and help defend the body against infection.
That system is made up of tissues and organs (bone marrow, spleen, thymus, and lymph nodes) that produce and store cells that fight infection and disease, along with the clear fluid, lymph, that carries those cells to different parts of the body.ymphocytes: A small white blood cell that plays a large role in defending the body against disease. There are two main types of lymphocytes: B-cells and T-cells. B-cells make antibodies that attack bacteria and toxins.