PAR1: a G-protein coupled high-affinity receptor for activated thrombin or trypsin. Coupled to G proteins that stimulate phosphoinositide hydrolysis. Coupled to G proteins that stimulate phosphoinositide hydrolysis. May play a role in platelet activation and in vascular development.
Protein type: GPCR, family 1; Receptor, GPCR; Membrane protein, multi-pass; Cell development/differentiation; Membrane protein, integral
Chromosomal Location of Human Ortholog: 5q13
Cellular Component: Golgi apparatus; postsynaptic membrane; integral to plasma membrane; early endosome; extracellular region; plasma membrane; caveola; neuromuscular junction
Molecular Function: G-protein coupled receptor activity; protein binding; G-protein alpha-subunit binding; G-protein beta-subunit binding; thrombin receptor activity; receptor binding
Biological Process: elevation of cytosolic calcium ion concentration during G-protein signaling, coupled to IP3 second messenger (phospholipase C activating); positive regulation of blood coagulation; activation of MAPKK activity; negative regulation of glomerular filtration; positive regulation of transcription, DNA-dependent; positive regulation of collagen biosynthetic process; positive regulation of caspase activity; positive regulation of JAK-STAT cascade; response to lipopolysaccharide; negative regulation of cell proliferation; connective tissue replacement during inflammatory response; elevation of cytosolic calcium ion concentration; positive regulation of MAPKKK cascade; platelet dense granule organization and biogenesis; regulation of interleukin-1 beta production; protein kinase C activation; positive regulation of cell proliferation; response to wounding; negative regulation of neuron apoptosis; positive regulation of smooth muscle contraction; establishment of synaptic specificity at neuromuscular junction; inflammatory response; STAT protein nuclear translocation; caspase activation; platelet activation; anatomical structure morphogenesis; positive regulation of I-kappaB kinase/NF-kappaB cascade; positive regulation of Rho protein signal transduction; positive regulation of phosphoinositide 3-kinase cascade; G-protein coupled receptor protein signaling pathway; tyrosine phosphorylation of STAT protein; homeostasis of number of cells within a tissue; release of sequestered calcium ion into cytosol; regulation of blood coagulation; positive regulation of vasoconstriction; G-protein signaling, coupled to IP3 second messenger (phospholipase C activating); positive regulation of release of sequestered calcium ion into cytosol; regulation of sensory perception of pain; blood coagulation; positive regulation of calcium ion transport; positive regulation of cell migration
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