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Synthesis of 3,5-difluorotyrosine-containing Peptides: Application in Substrate Profiling of Protein Tyrosine Phosphatases

Overview
Journal Org Lett
Specialties Biochemistry
Chemistry
Date 2008 Sep 19
PMID 18798640
Citations 6
Authors
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Abstract

Fully protected 3,5-difluorotyrosine (F2Y), Fmoc-F2Y(tBu)-OH, is efficiently prepared by a chemoenzymatic process and incorporated into individual peptides and combinatorial peptide libraries. The F2Y-containing peptides display kinetic properties toward protein tyrosine phosphatases (PTPs) similar to their corresponding tyrosine-containing counterparts but are resistant to tyrosinase action. These properties make F2Y a useful tyrosine surrogate during peptide library screening for optimal PTP substrates.

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