(Ala1·3·11·15)-Endothelin-1

L-Tryptophan,L-alanyl-L-seryl-L-alanyl-L-seryl-L-seryl-L-leucyl-L-methionyl-L-a-aspartyl-L-lysyl-L-a-glutamyl-L-alanyl-L-valyl-L-tyrosyl-L-phenylalanyl-L-alanyl-L-histidyl-L-leucyl-L-a-aspartyl-L-isoleucyl-L-isoleucyl-