title: Effect of the methionine analogs, ethionine and norleucine, on DNA synthesis in Escherichia coli 15T.
mesh_terms: D002247:Carbon Isotopes; D002499:Centrifugation, Density Gradient; D004261:DNA Replication / Q000187:drug effects; D004269:DNA, Bacterial / Q000096:biosynthesis*; D004926:Escherichia coli / Q000378:metabolism*; D005001:Ethionine / Q000494:pharmacology*; D007930:Leucine / Q000494:pharmacology*; D008715:Methionine / Q000494:pharmacology*; D008722:Methods; D008745:Methylation; D013941:Thymine / Q000378:metabolism; D014316:Tritium; D014364:Tryptophan
chemical_list: D002247:Carbon Isotopes; D004269:DNA, Bacterial; D014316:Tritium; D014364:Tryptophan; D008715:Methionine; D007930:Leucine; D013941:Thymine; D005001:Ethionine