Results 1 to 10 of about 816 (111)

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

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   +3 more sources

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

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 Zacharoff, Daniel R Bond
exaly   +3 more sources

Large-scale prediction of outer-membrane multiheme cytochromes uncovers hidden diversity of electroactive bacteria and underlying pathways

Frontiers in Microbiology
Multi-heme cytochromes (MHCs), together with accessory proteins like porins and periplasmic cytochromes, enable microbes to transport electrons between the cytoplasmic membrane and extracellular substrates (e.g., minerals, electrodes, other cells ...
Kenneth H Nealson, Nancy Merino
exaly   +3 more sources

Electron Flow From the Inner Membrane Towards the Cell Exterior in Geobacter sulfurreducens: Biochemical Characterization of Cytochrome CbcL

Frontiers in Microbiology, 2022
Exoelectrogenic microorganisms are in the spotlight due to their unique respiratory mechanisms and potential applications in distinct biotechnological fields, including bioremediation, bioenergy production and microbial electrosynthesis.
Jorge M. A. Antunes, Jorge M. A. Antunes, Marta A. Silva, Marta A. Silva, Carlos A. Salgueiro, Carlos A. Salgueiro, Leonor Morgado, Leonor Morgado   +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

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

Structure of Geobacter OmcZ filaments suggests extracellular cytochrome polymers evolved independently multiple times

eLife, 2022
While early genetic and low-resolution structural observations suggested that extracellular conductive filaments on metal-reducing organisms such as Geobacter were composed of type IV pili, it has now been established that bacterial c-type cytochromes ...
Fengbin Wang, Chi Ho Chan, Victor Suciu, Khawla Mustafa, Madeline Ammend, Dong Si, Allon I Hochbaum, Edward H Egelman, Daniel R Bond   +8 more
doaj   +1 more source

Characterization of Shewanella oneidensis MtrC: a cell-surface decaheme cytochrome involved in respiratory electron transport to extracellular electron acceptors [PDF]

, 2007
MtrC is a decaheme c-type cytochrome associated with the outer cell membrane of Fe(III)-respiring species of the Shewanella genus. It is proposed to play a role in anaerobic respiration by mediating electron transfer to extracellular mineral oxides that ...
AI Tsapin, AJ Bard, AS Beliaev, AS Beliaev, BH Kim, Brian N. Jepson, C Myers, C Myers, C Schwalb, CR Myers, CR Myers, CR Myers, CR Myers, D Leys, David J. Richardson, DJ Richardson, E Berry, EHJ Gordon, FA Walker, GR Moore, HJ Kim, I Gautier-Luneau, J Hirst, JF Heidelberg, Jim Fredrickson, JK Fredrickson, JM Myers, JM Myers, JM Philo, John Zachara, Julea N. Butt, K Venkateswaren, KE Pitts, KH Nealson, KH Nealson, Kurnikov, L Shi, L Shi, Liang Shi, LJ Anderson, MG Almeida, MP Hendrich, MP Hendrich, PL Dutton, PS Dobbin, R Aasa, Robert S. Hartshorne, Sarah J. Field, SJ Field, T Horan, TA Clarke, Tom A. Clarke, VA Bamford   +52 more
core   +1 more source

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

Redox linked flavin sites in extracellular decaheme proteins involved in microbe-mineral electron transfer [PDF]

, 2015
Extracellular microbe-mineral electron transfer is a major driving force for the oxidation of organic carbon in many subsurface environments. Extracellular multi-heme cytochromes of the Shewenella genus play a major role in this process but the mechanism
A Okamoto, AC Mitchell, AGW Leslie, AM Waterhouse, AS Beliaev, CL Reardon, D Coursolle, D Ghosal, DE Ross, DJ Richardson, DJ Richardson, DJ Richardson, DK Thompson, E Marsili, ED Brutinel, F Sievers, GF White, GM Boratyn, GN Murshudov, I Letunic, JK Fredrickson, L Shi, L Shi, MJ Daly, MJ Daly, MJ Edwards, MJ Edwards, MJ Edwards, MY El-Naggar, P Taylor, PD Adams, RJ Morris, RS Hartshorne, S Bailey, S Pirbadian, TA Clarke   +35 more
core   +1 more source