PLASMIDS CONSTRUCTED BY GENE MANIPULATION, STRAINS OF ESCHERICHIA COLI CARRYING THEM, AND PROCESS OF TRYPTOPHAN PRODUCTION USING SAID STRAINS

摘要

Abstract of the DisclosureA recombinant plasmid having introduced thereintoa tryptophan operon which encodes an anthranilate synthasedesensitized to feedback inhibition by tryptophan; a strainof Escherichia coli carrying said recombinant plasmid;and a process for producing tryptophan using said strainof Escherichia coli.