UniProt Protein Function: | GRK4: Specifically phosphorylates the activated forms of G protein-coupled receptors. GRK4-alpha can phosphorylate rhodopsin and its activity is inhibited by calmodulin; the other three isoforms do not phosphorylate rhodopsin and do not interact with calmodulin. GRK4-alpha and GRK4-gamma phosphorylate DRD3. Phosphorylates ADRB2. Belongs to the protein kinase superfamily. AGC Ser/Thr protein kinase family. GPRK subfamily. 4 isoforms of the human protein are produced by alternative splicing. |
UniProt Protein Details: | Protein type:AGC group; EC 2.7.11.16; GRK family; GRK subfamily; Kinase, protein; Protein kinase, AGC; Protein kinase, Ser/Thr (non-receptor) Chromosomal Location of Human Ortholog: 4p16.3 Molecular Function:rhodopsin kinase activity Biological Process: receptor internalization; regulation of G-protein coupled receptor protein signaling pathway; regulation of rhodopsin mediated signaling |
NCBI Summary: | This gene encodes a member of the guanine nucleotide-binding protein (G protein)-coupled receptor kinase subfamily of the Ser/Thr protein kinase family. The protein phosphorylates the activated forms of G protein-coupled receptors thus initiating its deactivation. This gene has been linked to both genetic and acquired hypertension. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2013] |
UniProt Code: | P32298 |
NCBI GenInfo Identifier: | 143811400 |
NCBI Gene ID: | 2868 |
NCBI Accession: | P32298.3 |
UniProt Secondary Accession: | P32298,O00641, O00642, Q13293, Q13294, Q13295, Q14453 Q14725, Q15313, Q15314, Q15315, Q15316, |
UniProt Related Accession: | P32298 |
Molecular Weight: | 67kDa |
NCBI Full Name: | G protein-coupled receptor kinase 4 |
NCBI Synonym Full Names: | G protein-coupled receptor kinase 4 |
NCBI Official Symbol: | GRK4 |
NCBI Official Synonym Symbols: | IT11; GPRK4; GRK4a; GPRK2L |
NCBI Protein Information: | G protein-coupled receptor kinase 4 |
UniProt Protein Name: | G protein-coupled receptor kinase 4 |
UniProt Synonym Protein Names: | G protein-coupled receptor kinase GRK4; ITI1 |
Protein Family: | G protein-coupled receptor kinase |
UniProt Gene Name: | GRK4 |