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Description :Full-length recombinant human PI4KB was co-expressed by baculovirus in Sf9 insect cells using an N-terminal GST tag.
Tag :GST tag
Expression System:Sf9 insect cells using baculovirus
Sequence :Full length
Genbank Number :BC000029
Specific Activity :Sample Kinase Activity Plot. For specific information on a given lot, see related technical data sheet.
Purity :Sample Purity Data. For specific information on a given lot, see related technical data sheet.
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
Molecular Weight :~120 kDa
Gene Aliases :PI4K-BETA, pi4K92, PI4Kbeta, PI4KIIIbeta
Scientific Background :PI4KB is a member of the phosphatidylinositol 4-kinase family (PI4K) and is the first committed step in the production of the second messenger inositol-1,4,5-trisphosphate (PIP3). PI4KB regulates the golgi disintegration/reorganization during mitosis possibly via the phosphorylation of phosphatidylinositol (1). PI4KB is a type III enzyme that is sensitive to wortmannin and is responsible for regulating the synthesis of agonist-sensitive pools of polyphosphoinositides. PI4KB is critical for glucose-induced insulin secretion due to its capacity to regulate the release of secretory granules (2). PI4KB inhibits the insulin-stimulated translocation of glucose transporter-4 in mouse adipocytes through its interaction with neuronal calcium sensor-1.
1. Balla, A. et.al: Characterization of type II phospha-tidylinositol 4-kinase isoforms reveals association of the enzymes with endosomal vesicular compartments. J. Biol. Chem. 277: 20041-20050, 2002.
2. Griffioen, M. et.al: Identification of phosphatidylinositol 4-kinase type II beta as HLA class II-restricted target in graft versus leukemia reactivity. Proc. Nat. Acad. Sci. 105: 3837-3842, 2008.
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Research Areas :AKT/PKB Pathway, Angiogenesis, Apoptosis/Autophagy, Cancer, Cardiovascular Disease, Inflammation, Invasion/Metastasis, Lipid Kinases, Metabolic Disorder, Neurobiology, NfkB Pathway, WNT Signaling