ACVRL1 antibody, vgb antibody, alk1 antibody, zehn1109 antibody, hm:zehn1109 antibody, ACVRLK1 antibody, ALK-1 antibody, ALK1 antibody, HHT antibody, HHT2 antibody, ORW2 antibody, SKR3 antibody, TSR-I antibody, R-3 antibody, R3 antibody, SETHKIR antibody, AI115505 antibody, AI427544 antibody, Acvrlk1 antibody, Alk1 antibody, activin A receptor like type 1 antibody, activin A receptor type II-like 1 antibody, activin A receptor, type II-like 1 antibody, ACVRL1 antibody, acvrl1 antibody, Acvrl1 antibody
Background
ALK-1 or Activin receptor-like kinase-1 is a type I cell surface receptor for the TGF-beta (transforming growth factor-beta) super family of proteins. It is expressed predominantly in endothelial cells with moderate expression in smooth muscle cells, myofibroblast, hepatic stellate cells, chondrocytes, monocytes, myoblasts, macrophages and fibroblasts. ALK-1 plays a pivotal role in vascular remodelling and angiogenesis. More specifically its key function is in arterial/venous differentiation during embryonic vascular development. Mutations in ALK-1 gene (12q11-14) causes HHT2 (Hereditary Haemorrhagic Telangiectasia type 2), an autosomal dominant multisystem vascular dysplasia caused by a haploinsufficiency mechanism.