Immunogen sequence: IMDPKELDKV FNDYTAVPDL YFENAMRFFN FSWRVTADQL RKAPNRDQWS MTPPMVNAYY SPTKNEIVFP AGILQAPFYT RSSPKALNFG GIGVVVGHEL THAFDDQGRE YDKDGNLRPW WKNSSVEAFK R. Endothelin-converting enzyme 1 (ECE1) is located on chromosome 1p36.12 and encodes a zin