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.
The immune system is made up of a complex network of cells and organs that protect the body from infection. The Immune System-Click to Enlarge. Lymph nodes are part of the immune system. They release lymphocytes, a certain type of white blood cell that fights infection.The blood vessels and lymph vessels carry the lymphocytes to and from different areas in the body. Each lymphoid organ plays a role in the production and activation of lymphocytes.ymph nodes are part of the immune system. They release lymphocytes, a certain type of white blood cell that fights infection. The blood vessels and lymph vessels carry the lymphocytes to and from different areas in the body.