Retinoic acid receptor alpha (RARA) is a protein that plays a crucial role in the body's response to vitamin A. It is part of a larger family of nuclear receptors that regulate gene expression, influencing various biological processes such as cell growth, differentiation, and development. RARA binds to retinoic acid, a metabolite of vitamin A, to activate specific genes that are essential for normal cellular functions. RARA is particularly important in the development of the nervous system and the immune system. Abnormalities in RARA function can lead to various health issues, including certain types of cancer, such as acute promyelocytic leukemia. Understanding RARA's role helps researchers explore potential therapeutic targets for these conditions.