label: 1-phosphatidylinositol-3-kinase activity
label_lc: 1-phosphatidylinositol-3-kinase activity
description: "Catalysis of the reaction: a 1-phosphatidyl-1D-myo-inositol + ATP = a 1-phosphatidyl-1D-myo-inositol 3-phosphate + ADP + H+."