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Biosensors & bioelectronics

Thiamine biosensor based on oxidative trapping of enzyme-substrate intermediate.


PMID 27657847

Abstract

In the present work, we describe a new thiamine amperometric biosensor based on thiamine pyrophosphate (ThDP)-dependent transketolase (TK)-catalyzed reaction, followed by the oxidative trapping of TK intermediate α,β-dihydroxyethylthiamine diphosphate (DHEThDP) within the enzymatic active site. For the biosensor design purpose, TK from Escherichia coli (TKec) was immobilized in Mg

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