title: Thymineless mutants and their resistance to trimethoprim.
mesh_terms: D002648:Child; D003470:Culture Media; D004352:Drug Resistance, Microbial; D004754:Enterobacter / Q000378:metabolism; D004926:Escherichia coli / Q000187:drug effects; D006801:Humans; D008826:Microbial Sensitivity Tests; D009154:Mutation; D012486:Salmonella typhimurium / Q000378:metabolism; D013936:Thymidine / Q000494:pharmacology; D013941:Thymine / Q000378:metabolism* / Q000494:pharmacology; D014295:Trimethoprim / Q000494:pharmacology*
chemical_list: D003470:Culture Media; D014295:Trimethoprim; D013941:Thymine; D013936:Thymidine