Fluorescent enzyme substrates and method for determining enzyme activities
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United States of America Patent
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Mar 27, 2001
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N/A
app pub date -
Aug 14, 1998
filing date -
Dec 16, 1996
priority date (Note) -
Expired
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Abstract
The enzyme substrate according to this invention has within its molecule both a group to be cleaved by an enzyme reaction and a group that forms a strongly fluorescent coumarin derivative through intramolecular lactonization when cleaved by the enzyme reaction. Furthermore, the method for determining an enzyme activity according to this invention comprises conducting the enzyme reaction by the use of the enzyme substrate of the invention and determining the enzyme activity by means of the measurement of fluorescence of the coumarin derivative formed.
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