>3i5r_B mol:protein length:12 Peptide ligand HSKRPLPPLPSL >3i5r_B mol:protein length:12 Peptide ligand HSKRPLPPLPSL >3i5r_A mol:protein length:83 Phosphatidylinositol 3-kinase regulatory subunit alpha MSAEGYQYRALYDYKKEREEDIDLHLGDILTVNKGSLVALGFSDGQEARPEEIGWLNGY NETTGERGDFPGTYVEYIGRKKIS