GRB1, P85A, PI3-kinase p85-alpha subunit, PI3K, PI3K p85-alpha, Phosphatidylinositol 3-kinase regulatory alpha subunit, PtdIns-3-kinase p85-alpha; P55G, PI3-kinase p85-gamma subunit, PI3K p85-gamma, Phosphatidylinositol 3-kinase regulatory gamma subunit,