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
2021
Structure of Geobacter pili reveals secretory rather than nanowire behaviour
Gu Y, Srikanth V, Salazar-Morales AI, Jain R, O’Brien J, Yi SM, Soni RK, Samatey FA, Yalcin SE, Malvankar NS. Structure of Geobacter pili reveals secretory rather than nanowire behaviour. Nature 2021, 597: 430-434. PMID: 34471289, PMCID: PMC9127704, DOI: 10.1038/s41586-021-03857-w.Peer-Reviewed Original ResearchConceptsExtracellular electron transferType 4 piliElectron transferProtein nanowiresCryo-electron microscopyNanowiresNanowire behaviorGeobacter piliC-terminal residuesTranslocation machineryAssembly architectureLoss of secretionMajor phylaGeobacter speciesPrevious structural analysisSurface appendagesGeobacter sulfurreducensAromatic side chainsPiliPilAΠstackingWidespread effectsBioelectronicsMicroorganismsFilaments
2020
The blind men and the filament: Understanding structures and functions of microbial nanowires
Yalcin SE, Malvankar NS. The blind men and the filament: Understanding structures and functions of microbial nanowires. Current Opinion In Chemical Biology 2020, 59: 193-201. PMID: 33070100, PMCID: PMC7736336, DOI: 10.1016/j.cbpa.2020.08.004.Peer-Reviewed Original ResearchConceptsMicrobial nanowiresExtracellular electron transferDifferent nanowiresNanowiresPotential applicationsCryo-electron microscopyTransport electronsMultimodal functional imagingElectron transferBioelectronicsImportant environmental processesRecent discoveryPhysiological studiesOMCApplicationsMicroscopyBiofuelsSensingPhysiological needsMicrometersCrucial roleUnderstanding structureDirect evidenceThousands of papersEnergy production
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