title: New pepstatins, pepstatins B and C, and pepstanone A, produced by streptomyces.
mesh_terms: D013058:Mass Spectrometry; D009842:Oligopeptides / Q000302:isolation & purification*; D010434:Pepsin A / Q000037:antagonists & inhibitors*; D010436:Pepstatins; D010455:Peptides; D013057:Spectrum Analysis; D013302:Streptomyces / Q000378:metabolism*
chemical_list: D009842:Oligopeptides; D010436:Pepstatins; D010455:Peptides; C003067:pepstanone A; D010434:Pepsin A