1984 Volume 37 Issue 9 Pages 984-987
The structure of histargin, an inhibitor of carboxypeptidase B, produced by Streptomyces roseoviridis MF118-A5 strain, has been defined as N-[(S)-1-carboxy-4-guanidinobutyl]-N'-[(S )-1-carboxy-2-(imidazol-4-yl)ethyl]ethylenediamine, by spectral analysis and chemical synthesis.