Immunogen sequence: PRMPTFPSTE PIYLSLPGQS PYFSYPLTPA TPFHPQGSLP IYRPVVSTDM AKLFDKIAST SEFLKNGKAR TDLEITDSKV SNLQVSPKSE. The Class II PI3 kinases, including PIK3C2A, phosphorylate the 3 position of PI or PI4P. Though not as well studied as the Class I PI3