Immunogen sequence: GKNHTQSPGC EESDAGKEEL MKMRLPTRSD MICGYACLKG NAAMRNTKRG SWYIEALTQV FSERACDMHV ADMLVKVNAL IKEREGYAPG TEFHRCKEMS EYCSTLCQQL YLFPGYPPT. Caspases are cysteine proteases, expressed as inactive precursors, that mediate apoptosis by proteolys