Method for determination of enzyme activity
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United States of America Patent
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Sep 20, 1988
Issued Date -
N/A
app pub date -
Jun 17, 1986
filing date -
Aug 3, 1982
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Expired
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Abstract
This invention relates to a method for determining an enzyme-, an enzyme inhibitor-, an enzyme activator-, or zymogen-activity, which comprises allowing the enzyme to react with a substrate of the formula ##STR1## (wherein R.sub.1 represents an amino acid of an oligopeptide combined in the form of ester through the C-terminal carboxyl group of said amino acid or oligopeptide and R.sub.2 represents a hydrogen or bromine atom) to hydrolyze the substrate, then allowing the hydrolysis product of the formula ##STR2## to react with a FR-ITR salt [Fast Red-ITR salt (N,N'-diethyl-4-methoxymetanilamide diazonium salt)] to form a pigment, and determining the pigment.
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