Results 1 to 10 of about 131,481 (151)

Increased mutation rates and diversity are dominant features of Geobacter multiheme cytochromes [PDF]

mBio
Multiheme cytochromes (MHCs) are the central catalysts of extracellular electron transfer and are uniquely abundant in the genomes of model Fe(III)-reducing organisms like Geobacter sulfurreducens.
Ruth Starwalt-Lee, Jeffrey A. Gralnick, Daniel R. Bond   +2 more
doaj   +3 more sources

Geobacter sulfurreducens Extracellular Multiheme Cytochrome PgcA Facilitates Respiration to Fe(III) Oxides But Not Electrodes [PDF]

Frontiers in Microbiology, 2017
Extracellular cytochromes are hypothesized to facilitate the final steps of electron transfer between the outer membrane of the metal-reducing bacterium Geobacter sulfurreducens and solid-phase electron acceptors such as metal oxides and electrode ...
Lori A. Zacharoff, Dana J. Morrone, Daniel R. Bond, Daniel R. Bond   +3 more
doaj   +4 more sources

Mimicking Natural Photosynthesis: Designing Ultrafast Photosensitized Electron Transfer into Multiheme Cytochrome Protein Nanowires [PDF]

Nanomaterials, 2020
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.
Daniel R. Marzolf, Aidan M. McKenzie, Matthew C. O’Malley, Nina S. Ponomarenko, Coleman M. Swaim, Tyler J. Brittain, Natalie L. Simmons, Phani Raj Pokkuluri, Karen L. Mulfort, David M. Tiede, Oleksandr Kokhan   +10 more
doaj   +2 more sources

Microbial magnetite oxidation via MtoAB porin-multiheme cytochrome complex in Sideroxydans lithotrophicus ES-1 [PDF]

Applied and Environmental Microbiology
Most of Earth’s iron is mineral-bound, but it is unclear how and to what extent iron-oxidizing microbes can use solid minerals as electron donors. A prime candidate for studying mineral-oxidizing growth and pathways is Sideroxydans lithotrophicus ES-1, a
Jessica L. Keffer, Nanqing Zhou, Danielle D. Rushworth, Yanbao Yu, Clara S. Chan   +4 more
doaj   +2 more sources

Electroactive Microbiomes: Electron Transfer Mechanisms and Environmental Biotechnology Applications. [PDF]

Environ Microbiol Rep
Electroactive microbiomes couple direct, mediated, conductive, and interspecies electron transfer with biofilm organisation to drive wastewater treatment, bioremediation, resource recovery, carbon conversion, and biosensing. Their performance depends on balancing electron transfer, mass transport, community structure, and electrode–biofilm interactions
Mkilima T.
europepmc   +2 more sources

Electron transport across the cell envelope via multiheme c-type cytochromes in Geobacter sulfurreducens [PDF]

Frontiers in Chemistry
Extracellular electron transfer (EET) enables certain microorganisms to respire using soluble and insoluble extracellular electron acceptors by transporting electrons across the cell envelope. Among these, G. sulfurreducens serves as a model organism for
Media Zakizadeh Tabari, Allon I. Hochbaum   +1 more
doaj   +2 more sources

Inspiration from humans and microbes—and maybe a lot of luck: the “discovery” of Shewanella oneidensis MR-1 and extracellular electron transfer (EET) [PDF]

Journal of Bacteriology
In the early 1980s, it was generally believed that insoluble electron acceptors were unavailable to bacteria unless they could be solubilized and transferred from the cell exterior to the cell membrane for use in redox reactions.
Kenneth Nealson
doaj   +2 more sources

Genome-centric metagenomics reveals electroactive syntrophs in a conductive particle-dependent consortium from coastal sediments [PDF]

Nature Communications
Conductive particles are common in coastal sediments, yet their role in shaping methane-producing communities and pathways remains unclear. We applied genome-resolved metagenomics to a sediment-derived consortium serially transferred for a decade and ...
Danijel Jovicic, Konstantinos Anestis, Jacek Fiutowski, Bo Barker Jørgensen, Kasper Urup Kjeldsen, Amelia-Elena Rotaru   +5 more
doaj   +2 more sources

Cytochrome “nanowires” are physically limited to sub-picoamp currents that suffice for cellular respiration [PDF]

Frontiers in Chemistry
Mineral-respiring microorganisms from hydrothermal vents to terrestrial soils express filaments that electrically connect intracellular respiration to extracellular geochemistry. Filaments dubbed “cytochrome nanowires” (CNs) have been resolved by CryoEM,
Matthew J. Guberman-Pfeffer, Caleb L. Herron   +1 more
doaj   +2 more sources

A New Paradigm of Multiheme Cytochrome Evolution by Grafting and Pruning Protein Modules. [PDF]

Molecular Biology and Evolution, 2022
Ricardo Soares, Catarina M Paquete, Ricardo O Louro   +2 more
exaly   +2 more sources