phosphatidylinositol 4-kinase 230,phosphatidylinositol 4-kinase alpha,phosphatidylinositol 4-kinase III alpha,phosphatidylinositol 4-kinase IIII+/-,phosphatidylinositol 4-kinase, catalytic, alpha,phosphatidylinositol 4-kinase, type III, alpha,pi4K230,PI4K-ALPHA,PI4-kinase alpha,PIK4CA,PMGYCHA,ptdIns-4-kinase alpha,testicular secretory protein Li 35.
Acts on phosphatidylinositol (PtdIns) in the first committed step in the production of the second messenger inositol-1,4,5,-trisphosphate.