Alternative Type II NAD(P)H Dehydrogenases in the Mitochondria of Protists and Fungi

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Abstract

Plants, fungi, and some protists possess a more branched electron transport chain in their mitochondria compared to canonical one. In these organisms, the electron transport chain contains several rotenone-insensitive NAD(P)H dehydrogenases. Some are located on the outer surface, and others are located on the inner surface of the inner mitochondrial membrane. The putative role of these enzymes still remains elusive, but they may prevent the overreduction of the electron transport chain components and decrease the production of reaction oxygen species as a consequence. The last two decades resulted in the discovery of alternative rotenone-insensitive NAD(P)H dehydrogenases present in representatives of fungi and protozoa. The aim of this review is to gather and focus on current information concerning molecular and functional properties, regulation, and the physiological role of fungal and protozoan alternative NAD(P)H dehydrogenases.

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Antos-Krzeminska, N., & Jarmuszkiewicz, W. (2019, February 1). Alternative Type II NAD(P)H Dehydrogenases in the Mitochondria of Protists and Fungi. Protist. Elsevier GmbH. https://doi.org/10.1016/j.protis.2018.11.001

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