2025
A widespread and ancient bacterial machinery assembles cytochrome OmcS nanowires essential for extracellular electron transfer
Shen C, Salazar-Morales A, Jung W, Erwin J, Gu Y, Coelho A, Gupta K, Yalcin S, Samatey F, Malvankar N. A widespread and ancient bacterial machinery assembles cytochrome OmcS nanowires essential for extracellular electron transfer. Cell Chemical Biology 2025, 32: 239-254.e7. PMID: 39818215, PMCID: PMC11845295, DOI: 10.1016/j.chembiol.2024.12.013.Peer-Reviewed Original ResearchConceptsExtracellular electron transferPhylogenetically diverse speciesATP-dependent mannerMicrobial extracellular electron transferBacterial machineryDiverse prokaryotesDiverse speciesBiotechnological applicationsGeobacter sulfurreducensCell growthSurface-displayedMorphology maintenanceBiophysical methodsMulti-heme cytochromesCytochromeElectron transferOsCHSProkaryotesPhylogeneticallySulfurreducensGeobacterOverexpressionSpeciesMachinery
2023
Structure of Geobacter cytochrome OmcZ identifies mechanism of nanowire assembly and conductivity
Gu Y, Guberman-Pfeffer M, Srikanth V, Shen C, Giska F, Gupta K, Londer Y, Samatey F, Batista V, Malvankar N. Structure of Geobacter cytochrome OmcZ identifies mechanism of nanowire assembly and conductivity. Nature Microbiology 2023, 8: 284-298. PMID: 36732469, PMCID: PMC9999484, DOI: 10.1038/s41564-022-01315-5.Peer-Reviewed Original ResearchConceptsNanowire assembliesHigh electron conductivityExtracellular electron transportNanowire networksExtracellular electron acceptorsG. sulfurreducensElectron conductivityCryogenic electron microscopy structureNanowiresHigh conductivityElectron microscopy structureSerine proteasesDifferent biochemical environmentsElectron transportMicroscopy structureDiverse speciesGeobacter speciesSulfurreducensConductivityImportant bacteriaCharge interactionsElectron acceptorBiochemical environmentSpeciesIdentifies mechanisms
2010
Bacterial biofilms: the powerhouse of a microbial fuel cell
Franks A, Malvankar N, Nevin K. Bacterial biofilms: the powerhouse of a microbial fuel cell. Biofuels 2010, 1: 589-604. DOI: 10.4155/bfs.10.25.Peer-Reviewed Original ResearchGenetic engineering studiesC-type cytochromesSpecialized biological processesDifferent bacterial speciesBiological processesSuch speciesBacterial speciesGeobacter sulfurreducensMicrobial fuel cellsBacterial biofilmsConductive biofilmsCell basisProton accumulationPure cultureSpeciesBiofilmsCellsFuel cellsElectron transferHigh current densityConsiderable distanceSulfurreducensCytochromeElectrode surfaceEngineering studies
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