METHOD FOR PREPARING L-THREONINE, STRAIN ESCHERICHIA COLI AS PRODUCER OF THREONINE (VARIANTS)

摘要

FIELD: biotechnology, microbiology. ^ SUBSTANCE: amino acid L-threonine is prepared by culturing microorganisms belonging to genus Escherichia eliciting ability for producing L-threonine. Indicated microorganism is modified with aim to elevate activity of aspartate aminotransferase. Invention provides preparing amino acid L-threonine with high degree of effectiveness. ^ EFFECT: improved preparing method. ^ 12 cl, 1 tbl, 2 ex