ALK1: a kinase of the STKR family. A type I cell-surface receptor for the TGF-beta superfamily of ligands including Activin A. Highly expressed in human placenta and lung. Deficiency causes hemorrhagic telangiectasia type 2 also known as Rendu-Osler-Weber syndrome 2.
Protein type: Membrane protein, integral; Kinase, protein; Protein kinase, Ser/Thr (receptor); EC 2.7.11.30; Protein kinase, TKL; TKL group; STKR family; Type1 subfamily
Chromosomal Location of Human Ortholog: 12q13.13
Cellular Component: cell surface; cell soma; integral to plasma membrane; dendrite
Molecular Function: transforming growth factor beta receptor activity; protein serine/threonine kinase activity; protein binding; activin receptor activity, type I; transforming growth factor beta binding; transforming growth factor beta receptor activity, type I; metal ion binding; activin binding; SMAD binding; protein kinase binding; ATP binding; transmembrane receptor protein serine/threonine kinase activity; receptor signaling protein serine/threonine kinase activity
Biological Process: blood circulation; protein heterooligomerization; positive regulation of transcription, DNA-dependent; activin receptor signaling pathway; negative regulation of cell adhesion; signal transduction; regulation of blood vessel endothelial cell migration; protein amino acid phosphorylation; BMP signaling pathway; negative regulation of cell proliferation; positive regulation of endothelial cell differentiation; regulation of transcription, DNA-dependent; negative regulation of endothelial cell differentiation; transforming growth factor beta receptor signaling pathway; regulation of blood pressure; lymphangiogenesis; angiogenesis; negative regulation of cell migration; positive regulation of BMP signaling pathway; regulation of DNA replication; regulation of endothelial cell proliferation; in utero embryonic development; negative regulation of focal adhesion formation; negative regulation of blood vessel endothelial cell migration; blood vessel maturation; blood vessel endothelial cell proliferation during sprouting angiogenesis; positive regulation of angiogenesis; positive regulation of chondrocyte differentiation; negative regulation of endothelial cell proliferation; blood vessel remodeling; positive regulation of transcription from RNA polymerase II promoter; positive regulation of endothelial cell proliferation; negative regulation of cell growth; wound healing, spreading of epidermal cells
Disease: Telangiectasia, Hereditary Hemorrhagic, Type 2
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