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
2006-07-11
2006-07-11
Prouty, Rebecca E. (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...
C435S108000, C435S252330, C435S282000, C536S023100, C536S024100
Reexamination Certificate
active
07074602
ABSTRACT:
An L-threonine-producingEscherichia colistrain and a method for producing the same are provided. TheEscherchia colistrain contains chromosomal DNA with inactivated metJ gene. Therefore, expression repression of threonine biosynthesis genes by a metJ gene product is prevented, thereby producing a high concentration of threonine. Further, a high concentration of L-threonine can be produced in high yield using the method.
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European Search Report; Application No. EP 04 35 6152; Date of Completion: May 23, 2005.
Cho Jae Yong
Kim Dae Cheol
Lee Byoung Choon
Lee Jin Ho
Park Young Hoon
Cantor & Colburn LLP
CJ Corporation
Prouty Rebecca E.
Walicka Malgorzata
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