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Assessing enzyme substrate specificity using combinatorial libraries and electrospray ionization-Fourier transform ion cyclotron resonance mass spectrometry

✍ Scribed by Maria Wigger; Joseph P. Nawrocki; Clifford H. Watson; John R. Eyler; Steven A. Benner


Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
111 KB
Volume
11
Category
Article
ISSN
0951-4198

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✦ Synopsis


A model experiment for the 'on-line' screening of substrate libraries by enzymes using combinatorial libraries in combination with electrospray ionization-Fourier transform ion cyclotron resonance (ESI-FTICR) mass spectrometry has been performed. The reaction between the electrophilic substrate 1-chloro-2,4-dinitrobenzene and components of a H-Ξ³-Glu-Cys-Xxx-OH library, catalyzed by glutathione-S-transferase, has been monitored. It shows the feasibility of 'two-dimensional' screening of substrate libraries by ESI-FTICR mass spectrometry.


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