title: Structure of antipain, a new Sakaguchi-positive product of streptomyces.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D009682:Magnetic Resonance Spectroscopy; D009904:Optical Rotation; D010455:Peptides / Q000302:isolation & purification; D011480:Protease Inhibitors; D013302:Streptomyces / Q000032:analysis*
chemical_list: D010455:Peptides; D011480:Protease Inhibitors