preferred_name: Phospho-PI3K in p-Y713-PECAM1:CDH5:PIK3CA,B,D:p-Y464-PIK3R2:p-Y801,Y1054,Y1175-KDR:p-Y1063,Y1230-FLT4:CTNNB1 phosphorylates phosphoinositol-4,5-bisphosphate to yield phosphoinositol-3,4,5-trisphosphate (Homo sapiens)