PI4K2B Together with PI4K2A and the type III PI4Ks (PIK4CA and PIK4CB) it contributes to the overall PI4-kinase activity of the cell. This contribution may be especially significant in plasma membrane, endosomal and Golgi compartments. The phosphorylation of phosphatidylinositol (PI) to PI4P is the first committed step in the generation of phosphatidylinositol 4,5-bisphosphate (PIP2), a precursor of the second messenger inositol 1,4,5-trisphosphate (InsP3). Contributes to the production of InsP3 in stimulated cells and is likely to be involved in the regulation of vesicular trafficking. Belongs to the PI3/PI4-kinase family. Type II PI4K subfamily. Widely expressed. Note: This description may include information from UniProtKB.
Protein type: EC; Kinase, lipid; Motility/polarity/chemotaxis
Chromosomal Location of human Ortholog: 4p15.2
Cellular Component:  cytosol
Molecular Function:  ATP binding
Biological Process:  phosphatidylinositol biosynthetic process
Reference #:  Q8TCG2 (UniProtKB)
Alt. Names/Synonyms: FLJ11105; P4K2B; phosphatidylinositol 4-kinase type 2 beta; Phosphatidylinositol 4-kinase type 2-beta; Phosphatidylinositol 4-kinase type II-beta; phosphatidylinositol 4-kinase type-II beta; PI4K2B; PI4KII-BETA; PI4KIIB; PIK42B
Gene Symbols: PI4K2B
Molecular weight: 54,744 Da
Basal Isoelectric point: 5.71  Predict pI for various phosphorylation states
Select Structure to View Below


Protein Structure Not Found.

Cross-references to other databases:  AlphaFold  |  STRING  |  cBioPortal  |  Wikipedia  |  Reactome  |  neXtProt  |  Protein Atlas  |  BioGPS  |  Pfam  |  RCSB PDB  |  ENZYME  |  Phospho.ELM  |  NetworKIN  |  GeneCards  |  UniProtKB  |  Entrez-Gene  |  GenPept  |  Ensembl Gene  |  InnateDB