This review focuses on the electrochemical and spectroelectrochemical studies that gave insight into redox potentials of the four mitochondrial complexes and their homologues from bacterial respiratory chains using O₂ as a terminal acceptor, thus providing crucial information about their reaction mechanism. Advantages and limitations of the use of the different techniques for the study of membrane proteins are presented. Electrocatalytic experiments are described that revealed specific features of the reaction with the substrates and inhibitors. An overview is given on the great variability of the redox and catalytic properties of the enzymes in different organisms that may be due to adaptation to the specific environments in which these enzymes function. The adaptation of the redox chain to the different types of quinone and substrates is analyzed, and future studies are discussed.

中文翻译：

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呼吸链膜蛋白的氧化还原特性。

这篇综述侧重于电化学和光谱电化学研究，从而深入了解了四种线粒体复合物的氧化还原电势及其使用O _2的细菌呼吸链同源物作为终端受体，从而提供有关其反应机理的关键信息。提出了使用不同技术研究膜蛋白的优势和局限性。描述了电催化实验，该实验揭示了与底物和抑制剂反应的特定特征。概述了在不同生物中酶的氧化还原和催化特性的巨大差异，这可能是由于对这些酶在其中起作用的特定环境的适应性所致。分析了氧化还原链对不同类型的醌和底物的适应性，并讨论了未来的研究。