An electrogenic redox loop in sulfate reduction reveals a likely widespread mechanism of energy conservation.
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ABSTRACT:
SUBMITTER: Duarte AG
PROVIDER: S-EPMC6303296 | biostudies-literature | 2018 Dec
REPOSITORIES: biostudies-literature
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An electrogenic redox loop in sulfate reduction reveals a likely widespread mechanism of energy conservation.
Duarte Américo G AG Catarino Teresa T White Gaye F GF Lousa Diana D Neukirchen Sinje S Soares Cláudio M CM Sousa Filipa L FL Clarke Thomas A TA Pereira Inês A C IAC
Nature communications 20181221 1
The bioenergetics of anaerobic metabolism frequently relies on redox loops performed by membrane complexes with substrate- and quinone-binding sites on opposite sides of the membrane. However, in sulfate respiration (a key process in the biogeochemical sulfur cycle), the substrate- and quinone-binding sites of the QrcABCD complex are periplasmic, and their role in energy conservation has not been elucidated. Here we show that the QrcABCD complex of Desulfovibrio vulgaris is electrogenic, as prot ...[more]
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