title: Expression of the tryptophan operon in merodiploids of Escherichia coli. II. Effects of polar mutations in the trpE gene.
mesh_terms: D004261:DNA Replication; D004269:DNA, Bacterial / Q000378:metabolism; D004171:Diploidy; D004926:Escherichia coli / Q000378:metabolism*; D005809:Genes, Regulator; D007211:Indoles / Q000378:metabolism; D009154:Mutation; D009876:Operon; D011995:Recombination, Genetic; D013489:Suppression, Genetic; D014161:Transduction, Genetic; D014364:Tryptophan / Q000378:metabolism*
chemical_list: D004269:DNA, Bacterial; D007211:Indoles; D014364:Tryptophan