Recombinant Human Phosphatidylinositol 4-Kinase beta/PI4KB (C-6His)

Source: Human Cells. MW :90.8kD. Recombinant Human PI4KB is produced by our Mammalian expression system and the target gene encoding Met1-Met801 is expressed with a 6His tag at the C-terminus. Phosphatidylinositol 4-Kinase beta (PI4KB) belongs to the PI3/PI4-kinase family and Type III PI4K subfamily. PI4KB contains one PI3K/PI4K domain and one PIK helical domain. It is highly expressed in heart, skeletal muscle, pancreas, testis and ovary, it is lowly expressed in liver tissue. PI4KB kinase activity can be inhibited by wortmannin, and increased by interacting with NCS1/FREQ. PI4KB phosphorylates phosphatidylinositol (PI) in the first committed step in the production of the second messenger inositol-1,4,5,-trisphosphate (PIP). In addition, PI4KB may regulate Golgi disintegration/reorganization during mitosis. Protein function: Phosphorylates phosphatidylinositol (PI) in the first committed step in the production of the second messenger inositol- 1,4,5,-trisphosphate (PIP). May regulate Golgi disintegration/reorganization during mitosis, possibly via its phosphorylation. Involved in Golgi-to-plasma membrane trafficking. [The UniProt Consortium]