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%ما هو (من)٪ 1 - تعريف
G protein-coupled receptor kinase 2
G-protein-coupled receptor kinase 2 (GRK2) is an enzyme that in humans is encoded by the ADRBK1 gene. GRK2 was initially called Beta-adrenergic receptor kinase (βARK or βARK1), and is a member of the G protein-coupled receptor kinase subfamily of the Ser/Thr protein kinases that is most highly similar to GRK3(βARK2).
G protein-coupled receptor
![PDB]] entry [https://web.archive.org/web/20180128134132/https://www.rcsb.org/structure/3SN6 3SN6]). The receptor is colored red, Gα green, Gβ cyan, and Gγ yellow. The C-terminus of Gα is located in a cavity created by an outward movement of the cytoplasmic parts of TM5 and 6.](https://commons.wikimedia.org/wiki/Special:FilePath/Beta2Receptor-with-Gs.png?width=200 "PDB]] entry [https://web.archive.org/web/20180128134132/https://www.rcsb.org/structure/3SN6 3SN6]). The receptor is colored red, Gα green, Gβ cyan, and Gγ yellow. The C-terminus of Gα is located in a cavity created by an outward movement of the cytoplasmic parts of TM5 and 6.")
![Proposed downstream interactions between [[integrin]] signaling and GPCRs. Integrins are shown elevating Ca<sup>2+</sup> and phosphorylating FAK, which is weakening GPCR signaling.](https://commons.wikimedia.org/wiki/Special:FilePath/GPCR and itegrin signaling diagram.png?width=200 "Proposed downstream interactions between [[integrin]] signaling and GPCRs. Integrins are shown elevating Ca<sup>2+</sup> and phosphorylating FAK, which is weakening GPCR signaling.")
LARGE PROTEIN FAMILY OF RECEPTORS THAT DETECT MOLECULES OUTSIDE THE CELL AND ACTIVATE INTERNAL SIGNAL TRANSDUCTION PATHWAYS AND CELLULAR RESPONSES
G-protein coupled receptors; G-protein coupled receptor; 7TM receptor; G protein coupled receptor; GPCR; Heptahelical receptor; 7 transmembrane receptor; Seven transmembrane receptor; Seven-transmembrane protein; Seven transmembrane region; G-protein-coupled receptors; Guanine Nucleotide-Binding Protein-Coupled Receptor; 7TM Receptor; 7TM; G-protein-coupled receptor; Receptors, g-protein-coupled; 7-transmembrane G-protein coupled; G-protein coupled; G protein-coupled; 7 transmembrane; 7-transmembrane; G-protein linked receptors; G-protein coupled membrane receptors; G protein-coupled receptors; G-protein-coupled; Serpentine receptor; G protein coupled receptors; Gi coupled receptor; Seven transmembrane protein; 7-transmembrane receptor; Gpcr; Gpcrs; G protein–coupled receptor; GPCRs
G protein-coupled receptors (GPCRs), also known as seven-(pass)-transmembrane domain receptors, 7TM receptors, heptahelical receptors, serpentine receptors, and G protein-linked receptors (GPLR), form a large group of evolutionarily-related proteins that are cell surface receptors that detect molecules outside the cell and activate cellular responses. Coupling with G proteins, they are called seven-transmembrane receptors because they pass through the cell membrane seven times.
GRK6
PROTEIN-CODING GENE IN THE SPECIES HOMO SAPIENS
G protein-coupled receptor kinase 6; GRK6 (gene)
This gene encodes a member of the G protein-coupled receptor kinase subfamily of the Ser/Thr protein kinase family, and is most highly similar to GRK4 and GRK5. The protein phosphorylates the activated forms of G protein-coupled receptors to regulate their signaling.
