Endothelin DNA and use thereof.

摘要

Disclosed are (1) a DNA sequence containing a DNA segment coding for endothelin-2 or human endothelin-3, (2) a precursor protein and a mature peptide of endothelin-2 or human endothelin-3, (3) a transformant carrying a DNA sequence containing a DNA segment coding for endothelin-2 or human endothelin-3 and (4) a method for preparing mature endothelin-2 or endothelin-3 which comprises culturing the transformant described in (3), producing and accumulating a protein in a culture medium, and collecting the same. Cells transfected or transformed with the DNA allow large amounts of endothelin-2 or endothelin-3 to be produced, which causes the advantageous production of endothelin-2 or endothelin-3. Endothelin-2 and endothelin-3 can be utilized as hypotension therapeutic agents or local vasoconstrictors to animals including humans.