Immunogen sequence: QDELIEKPMS PMQYARSGLG TAEMNGKLIA AGGYNREECL RTVECYNPHT DHWSFLAPMR TPRARFQMAV LMGQLYVVGG SNGHSDDLSC GEMYDSNIDD WIPVPELRTN RCNAGVCALN GKLYIVGGSD Highest antigen sequence identity to the following orthologs: Mouse - 96%, Rat - 95%. IVNS1