期刊
PHARMACEUTICALS
卷 15, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/ph15091088
关键词
mitochondria; respiratory chain; NADH dehydrogenase; Parkinson's disease; rotenone; piericidin; acetogenin
资金
- Deutsche Forschungsgemeinschaft [CRC1507 P14]
This article summarizes the structure and redox mechanism of respiratory complex I, as well as the binding modes and inhibitory mechanisms of inhibitors in the Q reduction site and Q access pathway. It provides important insights into the crucial protein complex involved in mitochondrial oxidative phosphorylation.
NADH:ubiquinone oxidoreductase (respiratory complex I) is a redox-driven proton pump with a central role in mitochondrial oxidative phosphorylation. The ubiquinone reduction site of complex I is located in the matrix arm of this large protein complex and connected to the membrane via a tunnel. A variety of chemically diverse compounds are known to inhibit ubiquinone reduction by complex I. Rotenone, piericidin A, and annonaceous acetogenins are representatives of complex I inhibitors from biological sources. The structure of complex I is determined at high resolution, and inhibitor binding sites are described in detail. In this review, we summarize the state of knowledge of how natural inhibitors bind in the Q reduction site and the Q access pathway and how their inhibitory mechanisms compare with that of a synthetic anti-cancer agent.
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