GRK2, active, GST tagged human
SIGMA/SRP5034 - PRECISIO® Kinase, recombinant, expressed in baculovirus infected Sf9 cells, ≥70% (SDS-PAGE), buffered aqueous glycerol solution
Synonym: β-ARK1; ADRBK1; BARK1; FLJ16718
Product Type: Chemical
SDS-PAGE GRK2, active, GST tagged, human: Cat. No. SRP5034: Purity was determined by densitometry. Molecular weight ~102 kDa. See CofA for lot-specific data.
Specific Activity GRK2, active, GST tagged, human: Cat. No. SRP5034: Specific Activity was determined by activity assay (see datasheet for protocol). See CofA for lot-specific data.
| assay | ≥70% (SDS-PAGE) |
| form | buffered aqueous glycerol solution |
| mol wt | ~102 kDa |
| NCBI accession no. | NM_001619   |
| product line | PRECISIO® Kinase |
| recombinant | expressed in baculovirus infected Sf9 cells |
| shipped in | dry ice |
| specific activity | 4.5-6.1 nmol/min·mg |
| storage temp. | −70°C |
| Biochem/physiol Actions: | G-protein-coupled receptor kinase 2 (GRK2) or ADRBK1 is a ubiquitous cytosolic enzyme that specifically phosphorylates the activated form of the beta-adrenergic and related G protein-coupled receptors. GRK2 phosphorylates the beta-2-adrenergic receptor and appears to mediate agonist-specific desensitization. Abnormal coupling of beta-adrenergic receptor to G protein is involved in the pathogenesis of the failing heart. RAF kinase inhibitor protein RKIP is a physiologic inhibitor of GRK2. After stimulation of G protein-coupled receptors, RKIP dissociates from its known target, RAF1 to associate with GRK2 and block its activity. G-protein-coupled receptor kinase 2 (GRK2) controls several intracellular mechanisms. It helps to maintain the structure and activities of the heart. Hence it participates in several cardiovascular diseases. GRK2 also modulates ion and fluid transport and eventually, blood pressure. It increases the synthesis of mitochondrial superoxide and reduces oxygen utilization and ATP synthesis. This protein serves as a major onco-modulator. |
| General description: | G-protein-coupled receptor kinase 2 (GRK2), which is officially known as adrenergic, beta, receptor kinase 1 (ADRBK1), gene codes for a 689 amino acid protein, that is of 79.573kDa. This gene has 12 catalytic region subdomains. GRK2 is expressed in the vascular endothelium, arterial smooth muscle, myocardium, kidney and in the renal proximal tubule. It is mapped to human chromosome 11q13. |
| Legal Information: | PRECISIO is a registered trademark of Sigma-Aldrich Co. LLC |
| Physical form: | Supplied in 50mM Tris-HCl, pH 7.5, 150mM NaCl, 10mM glutathione, 0.1mM EDTA, 0.25mM DTT, 0.1mM PMSF, 25% glycerol. |
| Preparation Note: | after opening, aliquot into smaller quantities and store at -70 °C. Avoid repeating handling and multiple freeze/thaw cycles |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥70% (SDS-PAGE) |
| activity | specific activity: 4.5-6.1 nmol/min·mg |
| Storage Temp. | −70°C |
| UNSPSC | 12352200 |