期刊
BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS
卷 1757, 期 4, 页码 225-239出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.bbabio.2006.04.002
关键词
electrocatalysis; electrochemistry; protein film voltammetry; coupled electron transfer; redox protein
资金
- Medical Research Council [MC_U105663141] Funding Source: Medline
- MRC [MC_U105663141] Funding Source: UKRI
- Medical Research Council [MC_U105663141] Funding Source: researchfish
Protein film voltammetry, the direct electrochemistry of redox enzymes and proteins, provides precise and comprehensive information on complicated reaction mechanisms. By controlling the driving force for a reaction (using the applied potential) and monitoring the reaction in real time (using the current), it allows thermodynamic and kinetic information to be determined simultaneously. Two challenges are inherent to protein film voltammetry: (i) to adsorb the protein or enzyme in a native and active configuration on the electrode surface, and (ii) to understand and interpret voltammetric results on both a qualitative and quantitative level, allowing mechanistic models to be proposed and rigorous experiments to test these models to be devised. This review focuses on the second of these two challenges. It describes how to use protein film voltammetry to derive mechanistic and biochemically relevant information about redox proteins and enzymes, and how to evaluate and interpret voltammetric results. Selected key studies are described in detail, to illustrate their underlying principles, strategies and physical interpretations. (c) 2006 Elsevier B.V. All rights reserved.
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