Immunogen sequence: PPPFQYHHRN PMGIGVTATN FTTHNIPQTF TTAIRCTKCG KGVDNMPELH KHILACASAS DKKRYTPKKN PVPLKQTVQP KNGVVVLDNS GKNAFRRMGQ PKRLNFSVEL SKMSSNKLKL NALKKKNQLV QKAI. PRDM2, a member of nuclear/histone methyltransferase superfamily, consists of an N-te