A trans-outer membrane porin-cytochrome protein complex for extracellular electron transfer by Geobacter sulfurreducens PCA

• Published in: Environmental microbiology reports Vol. 6; no. 6; pp. 776 - 785
• Main Authors: Liu, Yimo, Wang, Zheming, Liu, Juan, Levar, Caleb, Edwards, Marcus J., Babauta, Jerome T., Kennedy, David W., Shi, Zhi, Beyenal, Haluk, Bond, Daniel R., Clarke, Thomas A., Butt, Julea N., Richardson, David J., Rosso, Kevin M., Zachara, John M, Fredrickson, James K., Shi, Liang
• Format: Journal Article
• Language: English
• Published: United States Blackwell Publishing Ltd 01.12.2014; John Wiley & Sons, Inc; Wiley-Blackwell; BlackWell Publishing Ltd
• Subjects: Amino acids; Bacteria; Bacterial Outer Membrane Proteins - genetics; Bacterial Outer Membrane Proteins - metabolism; Bacterial Proteins - genetics; Bacterial Proteins - metabolism; BASIC BIOLOGICAL SCIENCES; Brief Reports; Citric acid; Complementation; Cytochrome; Cytochromes; Cytochromes c - genetics; Cytochromes c - metabolism; Electron transfer; Electron Transport; Electrons; element cycles and biogeochemical processes; Gene clusters; Gene deletion; Genomes; Geobacter - genetics; Geobacter - metabolism; Geobacter sulfurreducens; Gram-negative bacteria; Hypotheses; Iron; Lipid bilayers; Lipids; Membranes; metals; Methyl viologen; Multigene Family; Nanowires; OmcB gene; Oxidation; Oxidation-Reduction; Phylogeny; Porins - genetics; Porins - metabolism; Protein Binding; Proteins

Summary The multi‐heme, outer membrane c‐type cytochrome (c‐Cyt) OmcB of Geobacter sulfurreducens was previously proposed to mediate electron transfer across the outer membrane. However, the underlying mechanism has remained uncharacterized. In G. sulfurreducens, the omcB gene is part of two tandem...