Requires G-protein for activation and therefore belongs to the family of G-protein-dependent receptor kinases (GRKs). Acts on the agonist-occupied form of the receptor; also phosphorylates rhodopsin, but more slowly. Does not act on casein or histones. The enzyme is inhibited by Zn2+ and digitonin but is unaffected by cyclic-AMP (cf. EC 2.7.11.14, rhodopsin kinase and EC 2.7.11.16, G-protein-coupled receptor kinase).
The taxonomic range for the selected organisms is: Drosophila melanogaster The expected taxonomic range for this enzyme is: Eukaryota, Archaea, Bacteria
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SYSTEMATIC NAME
IUBMB Comments
ATP:[beta-adrenergic receptor] phosphotransferase
Requires G-protein for activation and therefore belongs to the family of G-protein-dependent receptor kinases (GRKs). Acts on the agonist-occupied form of the receptor; also phosphorylates rhodopsin, but more slowly. Does not act on casein or histones. The enzyme is inhibited by Zn2+ and digitonin but is unaffected by cyclic-AMP (cf. EC 2.7.11.14, rhodopsin kinase and EC 2.7.11.16, G-protein-coupled receptor kinase).
GPRK2 participates in Hedgehog signaling in Drosophila melanogaster, and plays a key role in the Smo signal transduction pathway, when Gprk2 levels are lowered, Smo still accumulates at the cell membrane, but its activation is reduced, overview
Gprk2, a Drosophila member of the G protein-coupled receptor kinases, plays a key role in the Smo, i.e. Smoothened, signal transduction pathway, overview. When Gprk2 levels are lowered, Smo still accumulates at the cell membrane, but its activation is reduced. Regulation of Gprk2 expression by Hh signaling in the wing disc, but Gprk2 is also required for Hh signaling in the wing disc, overview
Gprk2, a Drosophila member of the G protein-coupled receptor kinases, plays a key role in the Smo, i.e. Smoothened, signal transduction pathway, overview. When Gprk2 levels are lowered, Smo still accumulates at the cell membrane, but its activation is reduced. Regulation of Gprk2 expression by Hh signaling in the wing disc, but Gprk2 is also required for Hh signaling in the wing disc, overview
GRK2 expression plays a role in the fly development, GRK2 expression is required in the germline for proper formation of the anterior egg structures, egg hatching, and for early and late embryogenesis
GPRK2 participates in Hedgehog signaling in Drosophila melanogaster, and plays a key role in the Smo signal transduction pathway, when Gprk2 levels are lowered, Smo still accumulates at the cell membrane, but its activation is reduced, overview
Gprk2, a Drosophila member of the G protein-coupled receptor kinases, plays a key role in the Smo, i.e. Smoothened, signal transduction pathway, overview. When Gprk2 levels are lowered, Smo still accumulates at the cell membrane, but its activation is reduced. Regulation of Gprk2 expression by Hh signaling in the wing disc, but Gprk2 is also required for Hh signaling in the wing disc, overview
Gprk2, a Drosophila member of the G protein-coupled receptor kinases, plays a key role in the Smo, i.e. Smoothened, signal transduction pathway, overview. When Gprk2 levels are lowered, Smo still accumulates at the cell membrane, but its activation is reduced. Regulation of Gprk2 expression by Hh signaling in the wing disc, but Gprk2 is also required for Hh signaling in the wing disc, overview
GRK2 expression plays a role in the fly development, GRK2 expression is required in the germline for proper formation of the anterior egg structures, egg hatching, and for early and late embryogenesis
mutant, gprk2(6936) disrupts expression of a putative member of the GRK family, the G protein-coupled receptor kinase 2 gene Gprk2. This mutation affects Gprk2 gene expression in the ovaries and renders mutant females sterile. The mutant eggs contain defects in several anterior eggshell structures that are produced by specific subsets of migratory follicle cells. In addition, rare eggs that become fertilized display severe defects in embryogenesis
isolated mutant grk26936 shows developmental defects throughout the life cycle of the fly, phenotype overview, construction of several transgenic flies expressing grk2 under control of the hsp70 or germline-specific promoter, analysis of germline mosaic
lowering Gprk2 levels in the wing disc reduces the expression of Smo targets and causes a phenotype reminiscent of loss of Smo function, phenotype, overview
lowering Gprk2 levels in the wing disc reduces the expression of Smo targets and causes a phenotype reminiscent of loss of Smo function, phenotype, overview