title: Correction of the nucleotide sequence of the Citrobacter freundii tryptophan operon regulatory region.
abstract: We present a correction of the previously reported nucleotide sequence of the Citrobacter freundii trp operon regulatory region. The original sequence analyses were performed with a plasmid designated pCF2. We repeated the cloning of the trp regulatory region of C. freundii and concluded from the determined sequence that a DNA rearrangement had occurred within the leader region of the cloned trp DNA of pCF2. The correct sequence is homologous to the Escherichia coli sequence.
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D002954:Citrobacter / Q000235:genetics* / Q000378:metabolism; D004262:DNA Restriction Enzymes; D005796:Genes; D005798:Genes, Bacterial; D005809:Genes, Regulator; D009876:Operon; D014364:Tryptophan / Q000378:metabolism*
chemical_list: D014364:Tryptophan; D004262:DNA Restriction Enzymes