Nucleotide sequence of threonine operon irrepressible by isoleucine and method for producing l-threonine using transformed host cell containing the same

摘要

A nucleotide sequence of the threonine operon of E. coli with a deletion of all or part of a nucleotide fragment of -56 to -18, a recombinant vector containing the above nucleotide sequence, and a transformed host cell containing the recombinant vector are provided. A method for producing L-threonine comprising culturing the transformed host cell is also provided.