BRCA1. Definition

Medical Definition: BRCA1

Tumor suppressor gene located on chromosome 17 that normally helps to suppress cell growth. He is responsible for the disease in 45% of families with breast cancer, and over 80% of families with breast and ovarian cancer, so a person who inherits certain mutations (changes) in a BRCA1 gene has a increased risk of breast cancer, ovarian, prostate and other cancers.

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