NCIt definition : Endothelin-1 (212 aa, 24 kDa) is encoded by the human EDN1 gene. This protein is
involved in vasoconstriction.;
NCIt note : Endothelin-1 is proteolytically processed to form big endothelin-1 (38 amino acids)
or a 21 amino acid peptide also called endothelin-1. The active forms inhibits active
Na-K transport by inhibiting Na( )-K( )-ATPase in intact renaltubular epithelial cells.;