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: EC 2.7.11.30; Protein kinase, TKL; Membrane protein, integral; Protein kinase, Ser/Thr (receptor); Kinase, protein; TKL group; STKR family; Type1 subfamily
Cellular Component: cell soma; cell surface; dendrite; integral to plasma membrane; plasma membrane
Molecular Function: activin binding; activin receptor activity, type I; ATP binding; protein binding; protein kinase binding; protein serine/threonine kinase activity; receptor signaling protein serine/threonine kinase activity; SMAD binding; transforming growth factor beta binding; transforming growth factor beta receptor activity; transforming growth factor beta receptor activity, type I
Biological Process: angiogenesis; blood circulation; blood vessel morphogenesis; blood vessel remodeling; BMP signaling pathway; endothelial cell activation; in utero embryonic development; lymphangiogenesis; negative regulation of blood vessel endothelial cell migration; negative regulation of cell adhesion; negative regulation of cell growth; negative regulation of cell migration; negative regulation of cell proliferation; negative regulation of endothelial cell differentiation; negative regulation of endothelial cell proliferation; negative regulation of focal adhesion formation; positive regulation of angiogenesis; positive regulation of BMP signaling pathway; positive regulation of endothelial cell differentiation; positive regulation of endothelial cell proliferation; positive regulation of transcription from RNA polymerase II promoter; positive regulation of transcription, DNA-dependent; protein amino acid phosphorylation; protein heterooligomerization; regulation of blood pressure; regulation of transcription, DNA-dependent; signal transduction; transforming growth factor beta receptor signaling pathway; wound healing, spreading of epidermal cells
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