Results 21 to 30 of about 19,766,647 (382)

A dedicated haem lyase is required for the maturation of a novel bacterial cytochrome c with unconventional covalent haem binding [PDF]

open access: yes, 2007
In bacterial c-type cytochromes, the haem cofactor is covalently attached via two cysteine residues organized in a haem c-binding motif. Here, a novel octa-haem c protein, MccA, is described that contains only seven conventional haem c-binding motifs ...
Allen J.W.A.   +17 more
core   +1 more source

Genome-enabled studies of anaerobic, nitrate-dependent iron oxidation in the chemolithoautotrophic bacterium Thiobacillus denitrificans

open access: yesFrontiers in Microbiology, 2013
Thiobacillus denitrificans is a chemolithoautotrophic bacterium capable of anaerobic, nitrate-dependent U(IV) and Fe(II) oxidation, both of which can strongly influence the long-term efficacy of in situ reductive immobilization of uranium in contaminated
Harry R Beller   +7 more
doaj   +1 more source

New insight into the mechanism of mitochondrial cytochrome c function. [PDF]

open access: yesPLoS ONE, 2017
We investigate functional role of the P76GTKMIFA83 fragment of the primary structure of cytochrome c. Based on the data obtained by the analysis of informational structure (ANIS), we propose a model of functioning of cytochrome c. According to this model,
Rita V Chertkova   +9 more
doaj   +1 more source

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

open access: yesFrontiers 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   +6 more
doaj   +1 more source

Functional and Biogenetical Heterogeneity of the Inner Membrane of Rat-Liver Mitochondria [PDF]

open access: yes, 1971
Rat liver mitochondria were fragmented by a combined technique of swelling, shrinking, and sonication. Fragments of inner membrane were separated by density gradient centrifugation.
Allmann D. W.   +50 more
core   +1 more source

Maturation of Plastid c-type Cytochromes

open access: yesFrontiers in Plant Science, 2017
Cytochromes c are hemoproteins, with the prosthetic group covalently linked to the apoprotein, which function as electron carriers. A class of cytochromes c is defined by a CXXCH heme-binding motif where the cysteines form thioether bonds with the vinyl ...
Stéphane T. Gabilly   +3 more
doaj   +1 more source

Different outer membrane c‐type cytochromes are involved in direct interspecies electron transfer to Geobacter or Methanosarcina species

open access: yesmLife, 2022
Direct interspecies electron transfer (DIET) may be most important in methanogenic environments, but mechanistic studies of DIET to date have primarily focused on cocultures in which fumarate was the terminal electron acceptor.
Dawn E. Holmes   +5 more
doaj   +1 more source

The ‘porin-cytochrome’ model for microbe-to-mineral electron transfer [PDF]

open access: yes, 2012
Many species of bacteria can couple anaerobic growth to the respiratory reduction of insoluble minerals containing Fe(III) or Mn(III/IV). It has been suggested that in Shewanella species electrons cross the outer membrane to extracellular substrates via ‘
Afkar   +57 more
core   +2 more sources

Electrochemical Characterization of the Periplasmic PpcA c‐Cytochrome of Geobacter sulfurreducens Reveals Its Affinity for Uranium

open access: yesChemElectroChem, 2023
Geobacter bacteria produce conductive pili appendages and an outer membrane‐anchored lipopolysaccharide to immobilize uranium extracellularly. Yet, some radionuclide enters the cell envelope, where is rapidly mineralized by periplasmic c‐cytochromes.
Dr. Bhushan P. Awate   +2 more
doaj   +1 more source

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