This is a 20朼mino acid Bax BH3 peptide (Bax 1) capable of inducing apoptosis in a variety of cell line models. In addition to disrupting Bax/Bcl-2 and Bax/Bcl-XL, it can promote cytochrome c release from isolated mitochondria. Bax BH3 belongs to the Bcl-2 protein family which consists of both pro-apoptotic and anti-apoptotic members. Bax BH3 acts to regulate apoptosis via governance of the 'intrinsic' pathway of cell death.