Uptake of self-secreted flavins as bound cofactors for extracellular electron transfer in Geobacter species

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Abstract

Geobacter species are among the most efficient current-producing bacterial species, yet their electron-transfer mechanisms have been scarcely investigated at the molecular level. Here, we provide evidence that Geobacter cells secrete and utilize riboflavin as a bound-cofactor in outer-membrane c-type cytochromes. This finding highlights the potential roles of riboflavin as a major electron carrier in current production. This journal is © the Partner Organisations 2014.

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Okamoto, A., Saito, K., Inoue, K., Nealson, K. H., Hashimoto, K., & Nakamura, R. (2014). Uptake of self-secreted flavins as bound cofactors for extracellular electron transfer in Geobacter species. In Energy and Environmental Science (Vol. 7, pp. 1357–1361). Royal Society of Chemistry. https://doi.org/10.1039/c3ee43674h

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