Immunogen sequence: HTKGWLAQGQ GAHGLLIVSR VSDQQCSDTT LAPQDPRQPL ADLTIPVAML HYADMLDILS HTRGEAVVRV AMYAPPEPII D Antigen sequence identity: Mouse 67%; Rat 72%. Intramembrane-cleaving aspartic protease (I-CLiP) that may be able to cleave type II membrane sig