Modified tyrosine amino acids, peptides containing them, and their use for detecting hydrolase enzyme activity
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United States of America Patent
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Sep 20, 2016
Grant Date -
Jun 5, 2014
app pub date -
May 18, 2012
filing date -
May 20, 2011
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Abstract
The present invention relates to a method and tools which allow the kinetic monitoring of hydrolase enzyme activity. The present invention also aims to provide synthetic peptides and peptide residues modified such that they can be used in assays for monitoring hydrolase enzyme activity, and preferably phosphatase activity. Also claimed are modified tyrosine amino acid derivatives of formula (IV), wherein Y is chosen from —POy2− with y equal to 2 or 3 and esters thereof, —SOZ− with z equal to 2 or 3 and esters thereof, a carbohydrate or carbohydrate derivatives; and; wherein X1 and/or X2 is selected from —N3, —NO2, —CI, or —CN, —SCN, a C1 to C8 alkyl, or H, wherein either X1 or X2 is not H.
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