ETB: a G protein-coupled receptor which activates a phosphatidylinoitol-calcium second messenger system. Its ligand, endothelin, consists of a family of three potent vasoactive peptides: ET1, ET2, and ET3. Studies suggest that the multigenic disorder, Hirschsprung disease type 2, is due to mutation in endothelin receptor type B gene. Essential component in the normal development of two neuronal crest-derived cell lineages. Two splice variant isoforms have been described.
Protein type: Receptor, GPCR; GPCR, family 1; Membrane protein, integral; Membrane protein, multi-pass
Cellular Component: nuclear membrane; membrane; plasma membrane; integral to membrane; cytosol; lipid raft
Molecular Function: G-protein coupled receptor activity; endothelin receptor activity; signal transducer activity; protein binding; peptide hormone binding; type 1 angiotensin receptor binding
Biological Process: epithelial fluid transport; cGMP-mediated signaling; pigmentation during development; regulation of fever; negative regulation of cellular protein metabolic process; response to pain; response to lipopolysaccharide; negative regulation of transcription from RNA polymerase II promoter; sensory perception of pain; vein smooth muscle contraction; signal transduction; enteric nervous system development; vasodilation; regulation of epithelial cell proliferation; elevation of cytosolic calcium ion concentration; regulation of blood pressure; melanocyte differentiation; positive regulation of cell proliferation; regulation of pH; neural crest cell migration; posterior midgut development; vasoconstriction; macrophage chemotaxis; peripheral nervous system development; G-protein coupled receptor protein signaling pathway; negative regulation of neuron maturation; pigmentation; G-protein signaling, coupled to IP3 second messenger (phospholipase C activating); positive regulation of protein amino acid phosphorylation; regulation of sensory perception of pain; negative regulation of apoptosis
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