Annexin A5 (ANXA5),is a member of the structurally related family of annexin proteins some of which have been implicated in membrane-related events along exocytotic and endocytotic pathways. Annexin 5 is a phospholipase A2 and protein kinase C inhibitory protein with calcium channel activity and a potential role in cellular signal transduction,inflammation,growth and differentiation. Annexin 5 has also been described as placental anticoagulant protein I,vascular anticoagulant-alpha,endonexin II,lipocortin V,placental protein 4 and anchorin CII.