. "\"Catalysis of the reaction: 1-phosphatidyl-1D-myo-inositol 4-phosphate + ATP = 1-phosphatidyl-1D-myo-inositol 3,4-bisphosphate + ADP + 2 H(+).\" [EC:2.7.1.154, RHEA:18376]" . . "1-phosphatidylinositol-4-phosphate 3-kinase activity" . "ATP:1-phosphatidyl-1D-myo-inositol-4-phosphate 3-phosphotransferase activity" . "phosphatidylinositol-4-phosphate 3-kinase activity" . "EC:2.7.1.154" . "KEGG:R05795" . "MetaCyc:2.7.1.154-RXN" . "RHEA:18376" . . . "type II phosphoinositide 3-kinase activity" . "phosphatidylinositol 3-kinase, class I, catalyst activity" . "phosphatidylinositol 3-kinase activity, class I" . "phosphatidylinositol 3-kinase activity, class II" . "C2-domain-containing phosphoinositide 3-kinase activity" .