title: Ansamitocins, maytansinoid antitumor antibiotics. Producing organism, fermentation, and antimicrobial activities.
mesh_terms: D000192:Actinomycetales / Q000378:metabolism*; D000818:Animals; D000903:Antibiotics, Antineoplastic / Q000096:biosynthesis* / Q000302:isolation & purification / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects; D055598:Chemical Phenomena; D002621:Chemistry; D056890:Eukaryota / Q000187:drug effects; D005285:Fermentation; D005658:Fungi / Q000187:drug effects; D008453:Maytansine / Q000031:analogs & derivatives / Q000096:biosynthesis* / Q000302:isolation & purification / Q000494:pharmacology; D010078:Oxazines / Q000096:biosynthesis*
chemical_list: D000903:Antibiotics, Antineoplastic; D010078:Oxazines; D008453:Maytansine; C015682:ansamitocins