Perspectives on Microbial Electron Transfer Networks for Environmental Biotechnology
The overlap of microbiology and electrochemistry provides plenty of opportunities for a deeper understanding of the redox biogeochemical cycle of natural-abundant elements (like iron, nitrogen, and sulfur) on Earth. The electroactive microorganisms (EAMs)
Shaofeng Zhou +4 more
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Charge transfer through a cytochrome multiheme chain: Theory and simulation
We study sequential charge transfer within a chain of four heme cofactors located in the c-type cytochrome subunit of the photoreaction center of Rhodopseudomonas viridis from a theoretical perspective. Molecular dynamics simulations of the thermodynamic integration type are used to compute two key energies of Marcus' theory of charge transfer, the ...
Burggraf, Fabian, Koslowski, Thorsten
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Optimizing Electroactive Organisms: The Effect of Orthologous Proteins
Extracellular electron transfer pathways allow bacteria to transfer electrons from the cell metabolism to extracellular substrates, such as metal oxides in natural environments and electrodes in microbial electrochemical technologies (MET).
Bruno M. Fonseca +7 more
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Putative Extracellular Electron Transfer in Methanogenic Archaea
It has been suggested that a few methanogens are capable of extracellular electron transfers. For instance, Methanosarcina barkeri can directly capture electrons from the coexisting microbial cells of other species.
Kailin Gao, Yahai Lu
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Contrasting Pathways for Anaerobic Methane Oxidation in Gulf of Mexico Cold Seep Sediments
Gulf of Mexico sediments harbor numerous hydrocarbon seeps associated with high sedimentation rates and thermal maturation of organic matter. These ecosystems host abundant and diverse microbial communities that directly or indirectly metabolize ...
Adrien Vigneron +11 more
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A Simple, Rapid, and Highly Efficient Gene Expression System for Multiheme Cytochromes c [PDF]
The genes of tetraheme cytochrome c3 and hexadecaheme high-molecular-weight cytochrome c from Desulfovibrio vulgaris could be overexpressed as holoproteins in Shewanella oneidensis TSP-C using pUC-type vectors of E. coli. Surprisingly, S. oneidensis was transformed directly by pUC-type vectors through electroporation.
OZAWA, Kiyoshi +3 more
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Molecular Dissection of Bacterial Nanowires
The discovery of bacterial conductive structures, termed nanowires, has intrigued scientists for almost a decade. Nanowires enable bacteria to transfer electrons over micrometer distances to extracellular electron acceptors such as insoluble metal oxides
Thomas Boesen, Lars Peter Nielsen
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Architecture of the Heme-translocating CcmABCD/E complex required for Cytochrome c maturation
Mono- and multiheme cytochromes c are post-translationally matured by the covalent attachment of heme. For this, Escherichia coli employs the most complex type of maturation machineries, the Ccm-system (for cytochrome c maturation).
Lorena Ilcu +4 more
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Deep-branching ANME-1c archaea grow at the upper temperature limit of anaerobic oxidation of methane
In seafloor sediments, the anaerobic oxidation of methane (AOM) consumes most of the methane formed in anoxic layers, preventing this greenhouse gas from reaching the water column and finally the atmosphere.
David Benito Merino +7 more
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Mimicking Natural Photosynthesis: Designing Ultrafast Photosensitized Electron Transfer into Multiheme Cytochrome Protein Nanowires [PDF]
Efficient nanomaterials for artificial photosynthesis require fast and robust unidirectional electron transfer (ET) from photosensitizers through charge-separation and accumulation units to redox-active catalytic sites. We explored the ultrafast time-scale limits of photo-induced charge transfer between a Ru(II)tris(bipyridine) derivative ...
Daniel R. Marzolf +10 more
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