Results 21 to 30 of about 849 (155)

Novel Extracellular Electron Transfer Channels in a Gram-Positive Thermophilic Bacterium

Frontiers in Microbiology, 2021
Biogenic transformation of Fe minerals, associated with extracellular electron transfer (EET), allows microorganisms to exploit high-potential refractory electron acceptors for energy generation.
Sergey N. Gavrilov, Daria G. Zavarzina, Ivan M. Elizarov, Tamara V. Tikhonova, Natalia I. Dergousova, Vladimir O. Popov, Vladimir O. Popov, Jonathan R. Lloyd, David Knight, Mohamed Y. El-Naggar, Sahand Pirbadian, Kar Man Leung, Frank T. Robb, Maksim V. Zakhartsev, Orianna Bretschger, Elizaveta A. Bonch-Osmolovskaya, Elizaveta A. Bonch-Osmolovskaya   +16 more
doaj   +1 more source

Electron Transfer Pathways in a Multiheme Cytochrome MtrF [PDF]

Seibutsu Butsuri, 2017
Significance Cellular respiration process in dissimilatory metal-reducing bacteria is coupled to electron transfer. In Shewanella species, a decaheme cytochrome MtrF transfers electrons to extracellular insoluble substrates, such as Fe(III) and Mn(III/IV).
Hiroshi C. Watanabe, Yuki Yamashita, Hiroshi Ishikita   +2 more
openaire   +3 more sources

Reduction Kinetic of Water Soluble Metal Salts by Geobacter sulfurreducens: Fe2+/Hemes Stabilize and Regulate Electron Flux Rates

Frontiers in Microbiology, 2022
Geobacter sulfurreducens is a widely applied microorganism for the reduction of toxic metal salts, as an electron source for bioelectrochemical devices, and as a reagent for the synthesis of nanoparticles.
Maksym Karamash, Michael Stumpe, Jörn Dengjel, Carlos A. Salgueiro, Carlos A. Salgueiro, Bernd Giese, Katharina M. Fromm   +6 more
doaj   +1 more source

Delineating redox cooperativity in water-soluble and membrane multiheme cytochromes through protein design. [PDF]

Protein Sci
Abstract Nature has evolved diverse electron transport proteins and multiprotein assemblies essential to the generation and transduction of biological energy. However, substantially modifying or adapting these proteins for user-defined applications or to gain fundamental mechanistic insight can be hindered by their ...
Hardy BJ, Dubiel P, Bungay EL, Rudin M, Williams C, Arthur CJ, Guberman-Pfeffer MJ, Sofia Oliveira A, Curnow P, Anderson JLR.   +9 more
europepmc   +4 more sources

Genetic Manipulation of Desulfovibrio ferrophilus and Evaluation of Fe(III) Oxide Reduction Mechanisms

Microbiology Spectrum, 2022
The sulfate-reducing microbe Desulfovibrio ferrophilus is of interest due to its relatively rare ability to also grow with Fe(III) oxide as an electron acceptor and its rapid corrosion of metallic iron. Previous studies have suggested multiple agents for
Toshiyuki Ueki, Trevor L. Woodard, Derek R. Lovley   +2 more
doaj   +1 more source

Gallionellaceae pangenomic analysis reveals insight into phylogeny, metabolic flexibility, and iron oxidation mechanisms

mSystems, 2023
The iron-oxidizing Gallionellaceae drive a wide variety of biogeochemical cycles through their metabolisms and biominerals. To better understand the environmental impacts of Gallionellaceae, we need to improve our knowledge of their diversity and ...
Rene L. Hoover, Jessica L. Keffer, Shawn W. Polson, Clara S. Chan   +3 more
doaj   +1 more source

The Proposed Molecular Mechanisms Used by Archaea for Fe(III) Reduction and Fe(II) Oxidation

Frontiers in Microbiology, 2021
Iron (Fe) is the fourth most abundant element in the Earth’s crust where ferrous Fe [Fe(II)] and ferric Fe [Fe(III)] can be used by archaea for energy conservation.
Yiran Dong, Yiran Dong, Yawei Shan, Kemin Xia, Liang Shi, Liang Shi   +5 more
doaj   +1 more source

Rational engineering of Geobacter sulfurreducens electron transfer components: a foundation for building improved Geobacter-based bioelectrochemical technologies

Frontiers in Microbiology, 2015
Multiheme cytochromes have been implicated in Geobacter sulfurreducens (Gs) extracellular electron transfer (EET). These proteins are potential targets to improve EET and enhance bioremediation and electrical current production by Gs.
Joana M Dantas, Leonor eMorgado, Muktak eAklujkar, Marta eBruix, Yuri Y Londer, Marianne eSchiffer, P. Raj ePokkuluri, Carlos eSalgueiro   +7 more
doaj   +1 more source

Investigation of the Molecular Mechanisms of the Eukaryotic Cytochrome-c Maturation System

Biomolecules, 2022
Cytochromes-c are ubiquitous heme proteins with enormous impact at the cellular level, being key players in metabolic processes such as electron transfer chains and apoptosis.
Ana V. Silva, Maria O. Firmino, Nazua L. Costa, Ricardo O. Louro, Catarina M. Paquete   +4 more
doaj   +1 more source

The role of intramolecular interactions in the functional control of multiheme cytochromes c [PDF]

FEBS Letters, 2011
Detailed thermodynamic and structural data measured in soluble monomeric multiheme cytochromes c provided the basis to investigate the functional significance of interactions between redox co‐factors. The steep decay of intramolecular interactions with distance means that close proximity of the redox centers is necessary to modulate the intrinsic ...
Fonseca, Bruno M., Paquete, Catarina M., Salgueiro, Carlos A., Louro, Ricardo O.   +3 more
openaire   +2 more sources