MODIFIED CREATINASE
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United States of America Patent
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Nov 29, 2018
app pub date -
Feb 23, 2016
filing date -
Feb 23, 2016
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Abstract
The invention relates to a mutant polypeptide having creatine amidinohydrolase activity, where the polypeptide both retains thermostable activity in the presence of reagents that modify thiol groups. The invention further relates to methods for producing the mutant polypeptide; and to a sensor comprising the mutant polypeptide for use in the measurement of creatinine in samples of physiological fluids. Additionally, the invention teaches how to use the mutant polypeptide to enhance the life-time of a creatinine sensor, and a method for producing the sensor.
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