Immunogen sequence: IEPAFTPGPN IELQKDSDCC SCQEKWVGYR CNCYFISSEQ KTWNESRHLC ASQKSSLLQL QNTDELDFMS SSQQFYWIGL SYSEEHTAWL WENGSALSQY LFPSFETFNT KNCIAYNPNG NA Highest antigen sequence identity to the following orthologs: Mouse - 51%, Rat - 52%. Natural kille