Immunogen sequence: ISLRLTGSSA QEEASGVALG EAPDHSYESL RVTSAQKHVL HVQLNRPNKR NAMNKVFWRE MVECFNKISR DADCRAVVIS GAGKMFTAGI DLMDMASDIL QPKGDDVARI SWYLRDIITR YQETFNVIER CPK. This gene encodes a member of the hydratase/isomerase superfamily. The gene product sh