Towards Electrosynthesis in Shewanella: Energetics of Reversing the Mtr Pathway for Reductive Metabolism

• Published in: PloS one Vol. 6; no. 2; p. e16649
• Main Authors: Ross, Daniel E., Flynn, Jeffrey M., Baron, Daniel B., Gralnick, Jeffrey A., Bond, Daniel R.
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 02.02.2011; Public Library of Science (PLoS)
• Subjects: Anchoring; ATP-Binding Cassette Transporters - metabolism; ATP-Binding Cassette Transporters - physiology; Bacterial Outer Membrane Proteins - metabolism; Bacterial Outer Membrane Proteins - physiology; Bacterial Proteins - metabolism; Bacterial Proteins - physiology; Biofilms; Biofilms - growth & development; Biology; Biosensing Techniques; Biosynthesis; Biotechnology; Biotechnology - methods; Biotechnology - trends; Cell Respiration - genetics; Cell Respiration - physiology; Chemical reactions; Chemistry; Cloning; Cytochrome; Cytochromes; Disruption; E coli; Electricity; Electrodes; Electron density; Electron flux; Electron fluxes; Electron transfer; Electron transport; Electron Transport - genetics; Electron Transport - physiology; Electrons; Energy Metabolism - physiology; Escherichia coli; Feasibility Studies; Flow; Fuel cells; Fumarates - metabolism; Gene deletion; Gene expression; Geobacter; Graphite; Hydrogen; Membrane proteins; Menaquinones; Metabolic Networks and Pathways - genetics; Metabolic Networks and Pathways - physiology; Metabolism; Microorganisms; Mutants; Organisms, Genetically Modified; Oxidation; Oxidation-Reduction; Physiological aspects; Plasmids; Protein interaction; Protein-protein interactions; Proteins; Quinone; Quinones; Reductase; Reduction; Reversed flow; Reversing; Shewanella - genetics; Shewanella - growth & development; Shewanella - metabolism; Shewanella - physiology; Shewanella oneidensis; Spacecraft components; Structural proteins; Voltammetry; United States > US; Minnesota

Bioelectrochemical systems rely on microorganisms to link complex oxidation/reduction reactions to electrodes. For example, in Shewanella oneidensis strain MR-1, an electron transfer conduit consisting of cytochromes and structural proteins, known as the Mtr respiratory pathway, catalyzes electron f...