Human/Mouse/Rat Annexin A7 Antibody

Annexin A7 (ANXA7), also known as Annexin VII and Synexin (SNX), is a 50.3 kDa member of the Annexin protein family. The Annexins are a family of Calcium‑dependent phospholipid-binding proteins that are preferentially located on the cytosolic face of the plasma membrane. The Annexin’s have a molecular weight of approximately 35‑40 kDa and consist of a unique amino terminal domain followed by a homologous C-terminal core domain containing the calcium-dependent phospholipid-binding sites. The C terminal domain is comprised of four 60‑70 amino acid (aa) repeats, known as annexin repeats or an endonexin fold (Annexin A6 contains 8 annexin repeats). The four annexin repeats form a highly alpha-helical, tightly packed disc known as the annexin domain, which binds to phospholipids in the membrane in a calcium-dependent manner. Members of the annexin family play a role in cytoskeletal interactions, phospholipase inhibition, regulation of cellular growth, and intracellular signal transduction pathways. Annexin A7 was identified as a calcium-dependent membrane-binding protein that not only fuses membranes but also acts as a voltage-dependent calcium channel. Identification of alternate mRNA splicing indicates two Annexin A7 isoforms differing in the N-terminal domain. Human Annexin A7 shares 92% identity with mouse and rat Annexin A7.