Reaction: ATP + [G-protein-coupled receptor] = ADP + [G-protein-coupled receptor] phosphate
Other name(s): G protein-coupled receptor kinase; GPCR kinase; GPCRK; GRK4; GRK5; GRK6; STK16
Systematic name: ATP:[G-protein-coupled receptor] phosphotransferase
Comments: Requires G-protein for activation and therefore belongs to the family of G-protein-dependent receptor kinases (GRKs). All members of this enzyme subfamily possess a highly conserved binding site for 1-phosphatidylinositol 4,5-bisphosphate. (cf. EC 18.104.22.168, rhodopsin kinase and EC 22.214.171.124, β-adrenergic-receptor kinase).
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number:
1. Kunapuli, P., Onorato, J.J., Hosey, M.M. and Benovic, J.L. Expression, purification, and characterization of the G protein-coupled receptor kinase GRK5. J. Biol. Chem. 269 (1994) 1099-1105. [PMID: 8288567]
2. Premont, R.T., Koch, W.J., Inglese, J. and Lefkowitz, R.J. Identification, purification, and characterization of GRK5, a member of the family of G protein-coupled receptor kinases. J. Biol. Chem. 269 (1994) 6832-6841. [PMID: 8120045]
3. Willets, J.M., Challiss, R.A. and Nahorski, S.R. Non-visual GRKs: are we seeing the whole picture? Trends Pharmacol. Sci. 24 (2003) 626-633. [PMID: 14654303]