title: Studies on G-253 substances, new antibiotics from streptomyces. I. Isolation and properties of G-253 B1, B2 and C1.
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000032:analysis* / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects; D002855:Chromatography, Thin Layer; D051379:Mice; D008937:Mitomycins / Q000494:pharmacology; D013053:Spectrophotometry; D013302:Streptomyces / Q000032:analysis*
chemical_list: D000900:Anti-Bacterial Agents; D008937:Mitomycins