Results 91 to 100 of about 885 (161)

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

open access: yesJournal 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   +2 more
openaire   +2 more sources

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

open access: yesEuropean 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   +4 more
openaire   +2 more sources

Microbial respiration with chlorine oxyanions: diversity and physiological and biochemical properties of chlorate- and perchlorate-reducing microorganisms [PDF]

open access: yes, 2016
Chlorine oxyanions are valuable electron acceptors for microorganisms. Recent findings have shed light on the natural formation of chlorine oxyanions in the environment. These suggest a permanent introduction of respective compounds on Earth, long before
Achenbach   +103 more
core   +1 more source

The Impact of Redox Mediators on the Electrogenic and Physiological Properties of Synechocystis sp. PCC 6803 in a Biophotovoltaic System

open access: yesChemSusChem, Volume 18, Issue 13, July 1, 2025.
Redox mediators are essential to promote the electrogenic activity of cyanobacteria in biophotovoltaics. In this work, we systematically evaluates three representative mediators about their influence on the cyanobacterial growth, photosynthetic efficiency, and electrogenic activity. The results reveal distinct impacts of different mediators, despite of
Jianqi Yuan   +6 more
wiley   +1 more source

Transferable denitrification capability of thermus thermophilus [PDF]

open access: yes, 2014
Laboratory-adapted strains of Thermus spp. have been shown to require oxygen for growth, including the model strains T. thermophilus HB27 and HB8. In contrast, many isolates of this species that have not been intensively grown under laboratory conditions
Berenguer, José   +4 more
core   +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

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

Dominance of Candidatus Scalindua species in anammox community revealed in soils with different duration of rice paddy cultivation in Northeast China [PDF]

open access: yes, 2013
The anaerobic ammonium-oxidizing (anammox) bacteria play an important role in the oxygen-limited zone for nitrogen cycling, but their roles in agricultural ecosystems are still poorly understood.
Gu, JD, Wang, J
core   +1 more source

Engineered Cell Elongation Promotes Extracellular Electron Transfer of Shewanella Oneidensis

open access: yesAdvanced Science, Volume 11, Issue 41, November 6, 2024.
This work investigates how cell elongation impacts the extracellular electron transfer of Shewanella oneidensis MR‐1 via genetic engineering to inhibit divisome formation. The electrophysiology of cell elongation is systematically elucidated in terms of intracellular generation, trans‐membrane transfer, and biofilm formation.
Feng Li   +15 more
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

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