METHOD FOR PREPARING L-THREONINE USING MICROORGANISM BELONGING TO GENUS ESCHERICHIA WHEREIN mazEF OPERON IS INACTIVATED

摘要

FIELD: biotechnology, microbiology, amino acids. ^ SUBSTANCE: invention represents a method for preparing L-threonine using a microorganism belonging to genus Escherichia that is modified and comprising the inactivated mazEF operon. Invention provides preparing L-threonine with the high degree of effectiveness. ^ EFFECT: improved preparing method of L-threonine. ^ 3 cl, 2 dwg, 2 tbl, 11 ex