Patent ID: 7323321
Filing Date: 2008-01-29
Classification: C12N,C12P

Abstract:
1. A method of making a microorganism that produces amino acid X consisting of: (a) selecting parental microorganism A that produces said amino acid from dextrose in percent yield Y; (b) mutagenizing said parental microorganism A to produce microorganism B; (c) selecting from step (b) at least one mutagenized microorganism B that is bradytrophic for valine; and (d) selecting from step (c) at least one microorganism C which produces said amino acid X from dextrose in percent yield Z, wherein said percent yield Z is greater than the percent yield Y; and wherein said amino acid X is selected from the group consisting of: a) L-lysine; b) L-threonine; c) L-methionine; and d) Homoserine.