>2OPZ_1|Chains A, B, C, D|Baculoviral IAP repeat-containing protein 4|Homo sapiens (9606) NFPNSTNLPRNPSMADYEARIFTFGTWIYSVNKEQLARAGFYALGEGDKVKCFHCGGGLTDWKPSEDPWEQHAKWYPGCKYLLEQKGQEYINNIHLTHSLEECLVRTTE >2OPZ_2|Chains E, F, G, H|AVPF (Smac homologue, N-terminal tetrapeptide)| AVPF