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- Table of Contents
Facts about G protein-coupled receptor kinase 4.
GRK4-alpha and GRK4-gamma phosphorylate DRD3. Phosphorylates ADRB2.
Human | |
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Gene Name: | GRK4 |
Uniprot: | P32298 |
Entrez: | 2868 |
Belongs to: |
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protein kinase superfamily |
EC 2.7.11; EC 2.7.11.16; G protein-coupled receptor kinase 2-like (Drosophila); G protein-coupled receptor kinase 4; G protein-coupled receptor kinase GRK4; GPRK2LIT11; GPRK4GRK4a; G-protein coupled receptor kinase 4; ITI1
Mass (kDA):
66.583 kDA
Human | |
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Location: | 4p16.3 |
Sequence: | 4; NC_000004.12 (2963504..3040760) |
Isoform 1, isoform 2, isoform 3, and isoform 4 are expressed in testis. Isoform 4 is expressed in myometrium.
Cytoplasm. Cytoplasm, cell cortex. Both at the cell surface and dispersed in the cytoplasm under basal conditions. Receptor stimulation results in the internalization of GRK4 to the perinuclear area, where colocalization with DRD3 is observed strongly at 5 and 15 minutes. DRD3 and GRK4 colocalize in lipid rafts of renal proximal tubule cells.
PMID: 1338872 by Ambrose C., et al. A novel G protein-coupled receptor kinase gene cloned from 4p16.3.
PMID: 9092566 by Sallese M., et al. G protein-coupled receptor kinase GRK4. Molecular analysis of the four isoforms and ultrastructural localization in spermatozoa and germinal cells.