title: New macrolide antibiotics produced by mutants from Streptomyces fradiae NRRL 2702.
mesh_terms: D007933:Leucomycins / Q000096:biosynthesis / Q000302:isolation & purification*; D008968:Molecular Conformation; D009154:Mutation; D013302:Streptomyces / Q000235:genetics / Q000378:metabolism*
chemical_list: D007933:Leucomycins