METHOD OF PRODUCING L-CYSTEINE USING BACTERIA OF ENTEROBACTERIACEAE FAMILY Russian patent published in 2012 - IPC C12N1/00 C12P13/04 C12P13/12 

FIELD: chemistry.

SUBSTANCE: described is L-cysteine producing bacteria, which relates to the Pantoea or Escherichia genus of the Enterobacteriaceae family, which is modified such that it has stronger expression of one or more genes selected from a group consisting of glutaredoxin coding genes grxC and grxB, and a glutathione reductase coding gene (gorA). Disclosed is a method of producing L-cysteine, involving growing said bacteria in a culture medium containing thiosulphate, and separating L-cysteine from the culture fluid.

EFFECT: invention increases output of L-cysteine.

9 cl, 4 tbl, 4 dwg, 5 ex