Chemistry: molecular biology and microbiology – Enzyme – proenzyme; compositions thereof; process for... – Hydrolase
Reexamination Certificate
2007-04-20
2010-10-19
Fronda, Christian L (Department: 1652)
Chemistry: molecular biology and microbiology
Enzyme , proenzyme; compositions thereof; process for...
Hydrolase
C435S183000, C435S252300, C435S320100, C536S023200
Reexamination Certificate
active
07816116
ABSTRACT:
To overcome disadvantages of a known creatinine amide hydrolase, and provide a creatinine amide hydrolase having improved affinity for creatinine or having a decreased Km value for creatinine, and also provide a reagent composition for use in the determination of creatinine, which is adapted to an automated analysis apparatus and is excellent in accuracy, preciseness and economic efficiency.Disclosed is a modified creatinine amide hydrolase having improved affinity for a substrate compared to an unmodified one. Also disclosed is a creatinine determination reagent comprising the modified creatinine amide hydrolase, a creatinine amidino hydrolase, sarcosine oxidase and a reagent for detection of hydrogen peroxide.
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Kitabayashi Masao
Nagai Rie
Nishiya Yoshiaki
Fronda Christian L
Leydig , Voit & Mayer, Ltd.
Toyo Boseki Kabushiki Kaisha
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