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Literature summary for 1.5.7.2 extracted from

  • Holmes, D.; Rotaru, A.; Ueki, T.; Shrestha, P.; Ferry, J.; Lovley, D.
    Electron and proton flux for carbon dioxide reduction in Methanosarcina barkeri during direct interspecies electron transfer (2018), Front. Microbiol., 9, 3109 .
    View publication on PubMedView publication on EuropePMC
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Organism

Organism UniProt Comment Textmining
Methanosarcina barkeri
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-
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Synonyms

Synonyms Comment Organism
Fpo
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 Methanosarcina barkeri

Expression

Organism Comment Expression
Methanosarcina barkeri transcripts for genes for most of the subunits for F420H2 dehydrogenase Fpo are higher in direct interspecies electron transfer-grown cells, i.e. in coculture with Geobacter metallireducens up

General Information

General Information Comment Organism
metabolism model for electron and proton flux for carbon dioxide reduction to methane in Methanosarcina barkeri during coculture with Geobacter metallireducens. Each two moles of ethanol oxidized to acetate by G. metallireducens releases eight electrons and eight protons. Electrons delivered to methanophenazine in the cell membrane are transferred to Fpo. Proton translocation drives Fpo-catalyzed reduction of F420 to F420H2. Half of the F420H2 produced serves as a reductant in the carbon dioxide reduction pathway. The remaining F420H2 is the electron donor for HdrABC, which reduces ferredoxin and CoM-S-S-CoB in an electron bifurcation reaction Methanosarcina barkeri