[Amino acid sequence of corticotropins from seiwhale (Balaenoptera borealis) and pinwhale (Balaenoptera physalus)].

The corticotropins from two species of whales, e. g. seiwhale (Balaenoptera borealis) and finwhale (Balaenoptera physalus) were subjected to hydrolysis by trypsin, chymotrypsin and pepsin. The peptide fragments were separated by gel-filtration through Sephadex and partition paper chromatography. The study of the amino acid sequence of the peptides obtained allowed to establish the primary structure of corticotropin from both species, which was found structurally identical to human corticotropin.