Immunogen sequence: VSVHSSPNDQ MLWVLDSRWN VHVRTGITEE MPVGTAWEHV PGLQACQLAL STRTVWARCP NGDLARRYGV TDKNPAGDYW KKIPGSVSCF TVTASDELWA VGPPGYLLQR LTKTFSHSHG TQKSSQAAMP HPEDLEDEWE VI Highest antigen sequence identity to the following orthologs: Mouse - 89%, Ra