The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Protein concentration is above or equal to 0.05 mg/ml.
Concentration information loading...
Preparation and Storage
Stability and Storage
Shipped on dry ice. Upon delivery aliquot and store at -80ºC. Avoid freeze / thaw cycles.
pH: 8.00 Constituents: 0.31% Glutathione, 0.79% Tris HCl
G protein coupled receptor kinase 4
G protein-coupled receptor kinase 2 (Drosophila)-like
G protein-coupled receptor kinase 4
G protein-coupled receptor kinase GRK4
G proteinm coupled receptor kinase 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.
Isoform 1, isoform 2, isoform 3, and isoform 4 are expressed in testis. Isoform 4 is expressed in myometrium.
Belongs to the protein kinase superfamily. AGC Ser/Thr protein kinase family. GPRK subfamily. Contains 1 AGC-kinase C-terminal domain. Contains 1 protein kinase domain. Contains 1 RGS domain.
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 co-localization with DRD3 is observed strongly at 5 and 15 minutes. DRD3 and GRK4 co-localize in lipid rafts of renal proximal tubule cells.