title: Prothracarcin, a novel antitumor antibiotic.
abstract: A novel antibiotic, prothracarcin was isolated from the culture broth of Streptomyces umbrosus subsp. raffinophilus DO-62. The antibiotic has the molecular formula of C14H14N2O and belongs to the pyrrolo [1,4]benzodiazepine antibiotics. Its structure has been elucidated by mass and NMR spectra. It is active against Gram-positive and Gram-negative bacteria and experimental murine tumor sarcoma 180 and leukemia P388.
mesh_terms: D000818:Animals; D000903:Antibiotics, Antineoplastic / Q000302:isolation & purification* / Q000494:pharmacology / Q000627:therapeutic use; D001569:Benzodiazepines / Q000302:isolation & purification / Q000494:pharmacology / Q000627:therapeutic use; D055598:Chemical Phenomena; D002621:Chemistry; D005285:Fermentation; D051379:Mice; D009374:Neoplasms, Experimental / Q000188:drug therapy; D013302:Streptomyces / Q000145:classification / Q000378:metabolism*
chemical_list: D000903:Antibiotics, Antineoplastic; D001569:Benzodiazepines; C035939:prothracarcin