Annexin V (ANXA5) Antibody – Rabbit Polyclonal

The protein encoded by this gene belongs to the annexin family of calcium-dependent phospholipid binding 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. The gene spans 29 kb containing 13 exons, and encodes a single transcript of approximately 1.6 kb and a protein product with a molecular weight of about 35 kDa. [provided by RefSeq, Jul 2008]

ANXA5: a calcium/phospholipid-binding protein and an anticoagulant protein that acts as an indirect inhibitor of the thromboplastin-specific complex, which is involved in the blood coagulation cascade. The binding of labeled ANXA5 to phosphatidylserine is used as a marker of apoptosis. Annexins are a family of structurally related proteins whose common property is calcium-dependent binding to phospholipids. There are at least ten different annexins in mammalian species. Annexins do not contain signal peptides, yet some annexins (A1, A2 and A5) appear to be secreted in a physiologically regulated fashion.

Protein type: Calcium-binding; Lipid-binding; Apoptosis; Inhibitor

Chromosomal Location of Human Ortholog: 4q27

Cellular Component: focal adhesion; membrane; cytoplasm; intracellular; external side of plasma membrane

Molecular Function: phospholipase inhibitor activity; calcium-dependent phospholipid binding; phospholipid binding; calcium ion binding

Biological Process: response to organic substance; negative regulation of catalytic activity; blood coagulation; signal transduction; negative regulation of coagulation; negative regulation of apoptosis

Disease: Pregnancy Loss, Recurrent, Susceptibility To, 3