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 fragmentof -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 culturingthe transformed host cell is also provided.