Detailed Instructions: Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.
Q: BRCA1 and BRCA1 ( / brkwn / ) are a human gene and its protein product , respectively . The official symbol ( BRCA1 , italic for the gene , nonitalic for the protein ) and the official name ( breast cancer 1 ) are maintained by the HGNC . 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 .
A:
BRCA1