Method for screening a protease
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United States of America Patent
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May 17, 2011
Grant Date -
Dec 24, 2009
app pub date -
Jul 21, 2009
filing date -
May 21, 2003
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Abstract
There is provided a method for specifically determining a glycated β-chain N-terminal of glycated hemoglobin using enzymes without a separation operation, and a determination reagent kit therefor. A protease that cleaves a glycated amino acid and/or a glycated peptide from a glycated β-chain N-terminal without substantially cleaving a glycated amino acid or a glycated peptide from a glycated α-chain N-terminal of glycated hemoglobin or a fragment thereof is screened. The method of specifically determining a glycated β-chain N-terminal of glycated hemoglobin and the determination reagent kit are provided by using the protease obtained by the screening method. According to the present invention, a glycated β-chain N-terminal of glycated hemoglobin can specifically be determined without a separation operation.
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