GRK7, Active(G05-10G)
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Description :Full-length recombinant human GRK7 was expressed by baculovirus in Sf9 insect cells using an N-terminal GST tag.
Species :Human
Tag :GST tag
Expression System:Sf9 insect cells using baculovirus
Sequence :Full Length
Genbank Number :NM_139209
Specific Activity :Sample Kinase Activity Plot. For specific information on a given lot, see related technical data sheet.activity.gif)
Purity :Sample Purity Data. For specific information on a given lot, see related technical data sheet.gel.gif)
Storage, Stability and Shipping :Store product at –70oC. For optimal storage, aliquot target into smaller quantities after centrifugation and store at recommended temperature. For most favorable performance, avoid repeated handling and multiple freeze/thaw cycles.
Applications :Kinase Assay, Western Blot
Molecular Weight :~89 kDa
Gene Aliases :GPRK7
Scientific Background :GRK7 is a member of the G protein-coupled receptor kinase subfamily and is a Ser/Thr protein kinase. GRK7 is specifically expressed in the retina and has been shown to phosphorylate cone opsins and initiate their deactivation (1). GRK7 catalyzes rhodopsin phosphorylation in a light-dependent manner. GRK7 co-localizes with GRK1 in human cone outer segments. PKA phosphorylates GRK7 at Ser(23) and Ser(36) in vitro and phosphorylation of GRK7 by PKA reduces the ability of GRK7 to phosphorylate rhodopsin in vitro (2). Since exposure to light causes a decrease in cAMP levels in rod cells, it is proposed that phosphorylation of GRK7 by PKA occurs in the dark.
References :
1. Chen, C-K. et al: Characterization of human GRK7 as a potential cone opsin kinase. Molec. Vision 7: 305-313, 2001.
2. Horner, T J. et al: Phosphorylation of GRK1 and GRK7 by cAMP-dependent protein kinase attenuates their enzymatic activities. J Biol Chem. 2005 Aug 5;280(31):28241-50.
Product Sheets (By Lot #) :
Research Areas :Angiogenesis, Cancer, Cardiovascular Disease, ERK/MAPK Pathway, Invasion/Metastasis, Metabolic Disorder, Neurobiology, Ser/Thr Kinases, Cancer, Neurobiology, Metabolic Disorder, Cardiovascular Disease, ERK/MAPK Pathway, Angiogenesis, Invasion/Metastasis, Ser/Thr Kinases