Results 71 to 80 of about 849 (155)

Impact of Native Environment in Multiheme-Cytochrome Chains of the MtrCAB Complex

Journal of Chemical Information and Modeling
MtrCAB protein complex plays a crucial role in exporting electrons through the outer membrane (OM) to external acceptors. This complex consists of three proteins and contains 20 hemes. Optimal protein-protein interactions and, consequently, heme-heme interactions facilitate efficient electron transfer through the conduit of hemes.
Sasthi C. Mandal, Ronit Sarangi, Atanu Acharya   +2 more
openaire   +3 more sources

Resonance Raman study of multihemic c‐type cytochromes from Desulfuromonas acetoxidans [PDF]

European Journal of Biochemistry, 2000
Two multihemic cytochromes c from the sulfur reducing bacteria Desulfuromonas acetoxidans have been studied by optical and resonance Raman spectroscopy: cytochrome c551.5, a trihemic cytochrome and cytochrome c Mr 50 000, a recently isolated high molecular mass cytochrome.
G, Chottard, I, Kazanskaya, M, Bruschi
openaire   +2 more sources

Defined Electrosynthetic Microbial Consortia Reveal Electron Transfer Modes Governing Acetate Production

Advanced 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, He Liu, Qihao Cao, Chao Zhang, Min Zhang, Minhua Cui, Yan Zhang, Bo Fu, Hongbo Liu   +8 more
wiley   +1 more source

EPR determination of interaction redox potentials in a multiheme cytochrome: cytochrome c3 from Desulfovibrio desulfuricans Norway [PDF]

European Journal of Biochemistry, 1988
In cytochromes c3 which contain four hemes per molecule, the redox properties of each heme may depend upon the redox state of the others. This effect can be described in terms of interaction redox potentials between the hemes and must be taken into account in the characterization of the redox properties of the molecule.
J P, Gayda, H, Benosman, P, Bertrand, C, More, M, Asso   +4 more
openaire   +2 more sources

A Membrane-Bound Cytochrome Enables Methanosarcina acetivorans To Conserve Energy from Extracellular Electron Transfer

mBio, 2019
Extracellular electron exchange in Methanosarcina species and closely related Archaea plays an important role in the global carbon cycle and enhances the speed and stability of anaerobic digestion by facilitating efficient syntrophic interactions.
Dawn E. Holmes, Toshiyuki Ueki, Hai-Yan Tang, Jinjie Zhou, Jessica A. Smith, Gina Chaput, Derek R. Lovley   +6 more
doaj   +1 more source

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

Environmental 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, Natanael Borges de Avila, Alisson William da Silva, Lucas Ramos Fernandes da Silva, Matheus Ribeiro Prado, Murilo Alves Beppler, Anderson Rodrigues dos Santos   +6 more
wiley   +1 more source

Exploring the molecular mechanisms of electron shuttling across the microbe/metal space

Frontiers in Microbiology, 2014
Dissimilatory metal reducing organisms play key roles in the biogeochemical cycle of metals as well as in the durability of submerged and buried metallic structures.
Catarina M Paquete, Bruno M. Fonseca, Davide eCruz, Tiago ePereira, Isabel ePacheco, Cláudio M Soares, Ricardo O Louro   +6 more
doaj   +1 more source

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

mLife, 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

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

Protein 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, Colin W. J. Lockwood, Benjamin W. Nash, Marcus J. Edwards, Jessica H. van Wonderen, Amit Sachdeva, Julea N. Butt, Thomas A. Clarke   +7 more
wiley   +1 more source

Non‐Respiratory Extracellular Electron Transfer Competes with Nitrogenase for Electrons in Rhodopseudomonas Palustris

Advanced Science, Volume 12, Issue 25, July 3, 2025.
This study develops a photosynthetic bioelectrochemical nitrogen fixation system for simultaneous nitrogen fixation and current generation using Rhodopseudomonas palustris. Notably, extracellular electron transfer (EET) serves as a redox balancing strategy, suppressing nitrogen fixation by competing with nitrogenase for electrons.
Xuewen Liu, Panqing Qi, Weipeng Fan, Wuyang Liu, Xingjiang Li, Yong Nie, Xiao‐Lei Wu   +6 more
wiley   +1 more source