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

被引：170

作者：

Okamoto, Akihiro ^{[1
]}

Saito, Koichiro ^{[1
]}

Inoue, Kengo ^{[2
]}

Nealson, Kenneth H. ^{[3
,4
]}

Hashimoto, Kazuhito ^{[1
]}

Nakamura, Ryuhei ^{[5
]}

机构：

[1] Univ Tokyo, Dept Appl Chem, Bunkyo Ku, Tokyo 1138656, Japan

[2] Miyazaki Univ, Interdisciplinary Res Org, Miyazaki 8891692, Japan

[3] Univ So Calif, Dept Earth Sci, Los Angeles, CA 90089 USA

[4] Univ So Calif, Dept Biol Sci, Los Angeles, CA 90089 USA

[5] RIKEN Ctr Sustainable Resource Sci, Biofunct Catalysts Res Team, Wako, Saitama 3510198, Japan

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2014年 / 7卷 / 04期

关键词：

BACTERIAL-CELL; OUTER-SURFACE; SULFURREDUCENS; SHEWANELLA; ELECTRICITY; REDUCTION; TRANSPORT; GENOME; OMCZ; IRON;

D O I：

10.1039/c3ee43674h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：1357 / 1361

页数：5

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