Immunogen sequence: DEEGFVLPST ANEDIHKRIA LCIDGPKRFC SNSKHLLGKE AIKQRHLQLL GYQVVQIPYH EIGMLKSRRE LVEYLQRKLF SQNTVHWL Highest antigen sequence identity to the following orthologs: Mouse - 76%, Rat - 76%. This gene encodes a member of a small family of Fas