Amino acid-producing bacteria and a process for preparing L-amino acids
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United States of America Patent
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Jan 15, 2008
Grant Date -
Apr 29, 2004
app pub date -
Jan 21, 2003
filing date -
Mar 7, 2002
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Abstract
The invention relates to amino acid-producing bacteria from the family Enterobacteriaceae, in particular from the species Escherichia coli, which contain a stop codon chosen from the group amber, ochre and opal in the nucleotide sequence for the coding region of the rpoS gene and a suppressor for a stop codon chosen from the group amber suppressor, ochre suppressor and opal suppressor. This invention also relates to a process for preparing amino acids, in particular L-threonine, using these bacteria.
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