title: The chemical modification of peptide antibiotics. I. The modification of gramicidin Dubos & the biological activity of the modified gramicidins.
mesh_terms: D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D013293:Enterococcus faecalis / Q000187:drug effects; D006461:Hemolysis / Q000187:drug effects; D007211:Indoles; D051381:Rats; D013329:Structure-Activity Relationship; D014449:Tyrothricin / Q000494:pharmacology*
chemical_list: D007211:Indoles; D014449:Tyrothricin