Noxa BH3, Peptide 1

This peptide belongs to the Bcl-2 family of proteins. Noxa gene encodes a Bcl-2 homology 3 (BH3)-only member of this family; it contains the BH3 region, not other BH domains. When ectopically expressed, Noxa undergoes BH3 motif-dependent localization to mitochondria, it interacts with anti-apoptotic Bcl-2 family members resulting in the activation of caspase-9.