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
2008-02-15
2011-12-06
Raghu, Ganapathirama (Department: 1652)
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing alpha or beta amino acid or substituted amino acid...
C435S106000, C435S193000, C435S194000, C435S252300, C435S252330, C435S252800, C435S471000, C435S488000, C435S069100, C435S320100
Reexamination Certificate
active
08071339
ABSTRACT:
The present invention relates to a mutant bacterial PRPP synthetase which is resistant to feedback by purine nucleotides, and a method for producing L-histidine using the bacterium of the Enterobacteriaceae family wherein the L-amino acid productivity of said bacterium is enhanced by use of the PRPP synthetase which is resistant to feedback by purine nucleotides, coded by the mutant prsA gene.
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Klyachko Elena Vitalievna
Kozlov Yuri Ivanovich
Shakulov Rustem Saidovich
Ajinomoto Co. Inc.
Cermak Shelly Guest
Cermak Nakajima LLP
Raghu Ganapathirama
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