Immunogen sequence: NEKVLTGYLN YMVQLGKLLG GGDEEAIRPQ MQQILDFETA LANITIPQEK RRDEELIYHK VTAAELQTLA PAINWLPFLN TIFYPVEINE SEPIVVYDKE YLEQISTLIN TTDRCLLNNY MIWNLVRKTS SFLDQRFQDA DEKFMEV. Endothelin-converting enzyme 1 (ECE1) is located on chromosome 1p36.12