L-cysteine-producing bacterium and a method for producing...

Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing alpha or beta amino acid or substituted amino acid...

Reexamination Certificate

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C435S252300, C435S252330, C435S069100, C435S440000, C530S350000, C536S023100

Reexamination Certificate

active

08008048

ABSTRACT:
The present invention provides a bacterium belonging to the family Enterobacteriaceae which has L-cysteine-producing ability and has been modified to decrease the activity of the protein encoded by the yhaM gene. This bacterium is cultured in a medium, and L-cysteine, L-cystine, their derivatives, or a mixture thereof is collected from the medium.

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