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
2005-12-27
2009-12-08
Steadman, David J (Department: 1656)
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing alpha or beta amino acid or substituted amino acid...
C435S091100, C536S025300
Reexamination Certificate
active
07629154
ABSTRACT:
The present invention relates to a novel thermostable N-acylamino acid racemase (NAAAR) isolated fromDeinococcus radioduransNCHU1003, the coding sequence and the preparation thereof. The present invention also discloses the process for preparing highly optically pure L-amino acids, such as L-homophenylalanine (L-HPA) and the derivatives thereof, from N-protected amino acid by using the novel NAAAR combined with L-N-carbamoylase.
Hsu Shih-Kuang
Hsu Wen-Huei
Bacon & Thomas PLLC
Kim Alexander D
National Chunghsing University
Steadman David J
LandOfFree
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