The enhanced affinity for thiolate anion and activation of enzyme-bound glutathione is governed by an arginine residue of human Mu class glutathione S-transferases.

Abstract

A series of chimeric human Mu class glutathione S-transferases were designed to determine mechanisms by which they activate enzyme-bound glutathione (GSH) for reaction with electrophilic substrates. In view of evidence that the His(107) residue of hGSTM1a-1a is important for catalysis (Patskovsky, Y. V., Patskovska, L. N., and Listowsky, I. (1999… (More)

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