AT1: receptor for angiotensin II. Angiotensin II is a potent vasopressor hormone and a primary regulator of aldosterone secretion. It is an important effector controlling blood pressure and volume in the cardiovascular system. Mediates the major cardiovascular effects of angiotensin II. May play role in the generation of reperfusion arrhythmias following restoration of blood flow to ischemic or infarcted myocardium. Mediates its action by association with G proteins that activate a phosphatidylinositol-calcium second messenger system.
Protein type: Membrane protein, integral; Receptor, GPCR; GPCR, family 1; Membrane protein, multi-pass
Chromosomal Location of Human Ortholog: 3q24
Cellular Component: integral to membrane; integral to plasma membrane; intracellular; plasma membrane
Molecular Function: angiotensin type I receptor activity; angiotensin type II receptor activity; bradykinin receptor binding; protein binding; protein heterodimerization activity
Biological Process: calcium-mediated signaling; elevation of cytosolic calcium ion concentration; elevation of cytosolic calcium ion concentration during G-protein signaling, coupled to IP3 second messenger (phospholipase C activating); G-protein coupled receptor protein signaling pathway; G-protein signaling, coupled to IP3 second messenger (phospholipase C activating); kidney development; positive regulation of cellular protein metabolic process; positive regulation of inflammatory response; positive regulation of NAD(P)H oxidase activity; positive regulation of phospholipase A2 activity; regulation of cell growth; regulation of cell proliferation; regulation of inflammatory response; regulation of systemic arterial blood pressure by renin-angiotensin; regulation of vasoconstriction; regulation of vasodilation; renin-angiotensin regulation of aldosterone production; renin-angiotensin regulation of blood vessel size; Rho protein signal transduction
Disease: Hypertension, Essential; Renal Tubular Dysgenesis
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