The inhibitor of apoptosis protein (IAP) family consists of a group of structurally related proteins with antiapoptotic properties.

• 细胞凋亡抑制因子（inhibitor of apoptosis，IAP）家族是一类分布广泛、结构相关的抗凋亡蛋白，存在于病毒、酵母和哺乳动物细胞中，具有高度保守性。