Results 71 to 80 of about 131,481 (151)

Substratsbindung ist nicht immer mit Katalyse verbunden: interne Regulation im Cytochrome-bc1-Komplex aus Paracoccus denitrificans [PDF]

open access: yes, 2011
The ubiquinol:cytochrome c oxidoreductase is a key component of several aerobic respiratory chains in different organisms. It is an integral membrane protein complex, made up of three catalytic subunits (cytochrome b, cytochrome c1 and Rieske iron ...
Castellani, Michela
core  

Defined Electrosynthetic Microbial Consortia Reveal Electron Transfer Modes Governing Acetate Production

open access: yesAdvanced Science, Volume 13, Issue 6, 30 January 2026.
Spatially resolved Shewanella–acetogen interactions link DIET and MET pathways to acetate formation, offering a generalizable framework for designing structured, high‐efficiency microbial electrosynthesis systems. Abstract Precise manipulation of interspecies electron transfer (IET) is critical for advancing microbial electrosynthesis (MES) toward ...
Jing Zhang   +8 more
wiley   +1 more source

Transient O2 pulses direct Fe crystallinity and Fe(III)-reducer gene expression within a soil microbiome

open access: yesMicrobiome, 2018
Background Many environments contain redox transition zones, where transient oxygenation events can modulate anaerobic reactions that influence the cycling of iron (Fe) and carbon (C) on a global scale.
Jared Lee Wilmoth   +2 more
doaj   +1 more source

Beyond Methane Oxidation: The Protein Landscape of ANME‐2a Reveals an Integrated System for Diazotrophy and Membrane Fortification

open access: yesEnvironmental Microbiology Reports, Volume 17, Issue 6, December 2025.
A protein interaction network of ANME‐2a uncovers a modular blueprint where core methane oxidation is energetically coupled to nitrogen fixation and membrane lipid biosynthesis. This integrated system explains the archaeon's metabolic autonomy and resilience in its extreme deep‐sea niche.
Samuel de Souza e Silva   +6 more
wiley   +1 more source

A periplasmic and extracellular c-type cytochrome of Geobacter sulfurreducens acts as a ferric iron reductase and as an electron carrier to other acceptors or to partner bacteria [PDF]

open access: yes, 1998
An extracellular electron carrier excreted into the growth medium by cells of Geobacter sulfurreducens was identified as a c-type cytochrome. The cytochrome was found to be distributed in about equal amounts in the membrane fraction, the periplasmic ...
Schink, B.   +5 more
core  

Spin-Dependent Electron Transport through Bacterial Cell Surface Multiheme Electron Conduits [PDF]

open access: yes, 2019
Multiheme cytochromes, located on the bacterial cell surface, function as long-distance (> 10 nm) electron conduits linking intracellular reactions to external surfaces.
Sahand, Pirbadian   +4 more
core   +1 more source

Comparative Proteomic Analysis of Desulfotomaculum reducens MI-1: Insights into the Metabolic Versatility of a Gram-positive Sulfate and Metal-reducing Bacterium

open access: yesFrontiers in Microbiology, 2016
The proteomes of the metabolically versatile and poorly characterized Gram-positive bacterium Desulfotomaculum reducens MI-1 were compared across four cultivation conditions including sulfate reduction, soluble Fe(III) reduction, insoluble Fe(III ...
Anne Elyse Otwell   +4 more
doaj   +1 more source

Current understanding of electroautotrophy and its relevance in astrobiology‐related research

open access: yesmLife, Volume 4, Issue 5, Page 473-493, October 2025.
Abstract Electroautotrophy—the use of extracellular electrons as the primary energy source for autotrophic metabolism—remains understudied compared to photoautotrophy and chemoautotrophy. Its occurrence in deep‐earth and deep‐sea environments suggests profound implications for astrobiology, yet electroautotrophic microorganisms remain poorly explored ...
Quansheng Wang, Maggie C. Y. Lau Vetter
wiley   +1 more source

Ecophysiology of Freshwater Verrucomicrobia Inferred from Metagenome-Assembled Genomes

open access: yesmSphere, 2017
Microbes are critical in carbon and nutrient cycling in freshwater ecosystems. Members of the Verrucomicrobia are ubiquitous in such systems, and yet their roles and ecophysiology are not well understood.
Shaomei He   +7 more
doaj   +1 more source

Extracellular catalysis of environmental substrates by Shewanella oneidensis MR‐1 occurs via active sites on the C‐terminal domains of MtrC

open access: yesProtein Science, Volume 34, Issue 8, August 2025.
Abstract The Gram‐negative Shewanellaceae family is well known for its ability to transfer catabolically derived electrons to extracellular terminal electron acceptors through electron conduits that permeate the outer membrane. The primary conduit is MtrCAB, a trimeric porin‐cytochrome complex that contains the cell surface exposed decaheme cytochrome ...
Alejandro Morales‐Florez   +7 more
wiley   +1 more source

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