title: DNA sequence change of a deletion mutation abolishing attenuation control of the threonine operon of E. coli K12.
mesh_terms: D001483:Base Sequence; D004262:DNA Restriction Enzymes; D004269:DNA, Bacterial / Q000235:genetics*; D004926:Escherichia coli / Q000235:genetics*; D005838:Genotype; D009154:Mutation; D013912:Threonine / Q000235:genetics*
chemical_list: D004269:DNA, Bacterial; D013912:Threonine; D004262:DNA Restriction Enzymes