Electron transfer

Edge evidence

• Electron transfer transfers electrons from electron donor

  Electron transfer starts from an electron donor.

  • DOI:10.1016/j.bbabio.2008.09.008 free energy of a redox reaction Supports donor-side redox chemistry.
• electron donor transfers electrons to electron acceptor METPO:2007403

  Electron transfer moves reducing equivalents from donor to acceptor.

  • DOI:10.1016/j.bbabio.2008.09.008 electron transfer process Supports donor-to-acceptor electron flow.
• redox protein mediates transfer between electron donor

  Redox proteins mediate biological electron-transfer steps.

  • DOI:10.1038/nrmicro.2016.93 molecular mechanisms ... exchange electrons Supports protein-mediated microbial electron exchange.
• c-type cytochrome example of redox protein rdfs:subClassOf

  c-type cytochromes are electron-transfer proteins.

  • DOI:10.1038/nrmicro.2016.93 c-type cytochromes Supports c-type cytochromes as electron-transfer components.
• membrane electron transport chain performs terminal acceptor reduction

  Electron transport chains deliver electrons to terminal acceptors.

  • DOI:10.1016/j.bbabio.2008.09.008 membrane-bound electron transport chain Supports membrane redox chains as electron-transfer machinery.
• extracellular electron transfer uses structure microbial nanowire

  Some microbes use conductive appendages or nanowires for extracellular electron transfer.

  • DOI:10.1038/nrmicro.2016.93 microbial nanowires Supports nanowires as an extracellular electron-transfer mechanism.
• extracellular electron transfer uses protein c-type cytochrome

  Extracellular electron transfer can use c-type cytochromes.

  • DOI:10.1038/nrmicro.2016.93 c-Type cytochromes Supports c-type cytochromes in extracellular electron exchange.
• NADH dehydrogenase (Complex I) reduces ubiquinone METPO:2000017

  Complex I oxidizes NADH and reduces ubiquinone in the respiratory chain.

  • DOI:10.3390/ijms252413421 Complex I oxidizes NADH using ubiquinone (broad bacterial respiratory ETC).
• NADH dehydrogenase (Complex I) translocates proton motive force

  Complex I couples NADH:ubiquinone oxidoreduction to transmembrane proton translocation, generating the PMF.

  • DOI:10.3390/ijms252413421 Coupling of redox reaction to vectorial translocation of four protons to generate proton motive force.
• ubiquinol donates electrons to cytochrome bc1 complex METPO:2007403

  Ubiquinol delivers electrons from the quinone pool to the cytochrome bc1 complex.

  • DOI:10.1073/pnas.2307093120 UQH2:cyt c oxidoreductase (Complex III); electrons flow from quinone pool to the bc1 complex.
• cytochrome bc1 complex transfers electrons to cytochrome c METPO:2007403

  The bc1 complex passes electrons onward to mobile cytochrome c.

  • DOI:10.1073/pnas.2307093120 Electrons flow to the bc1 complex and onward via cytochrome c.
• cytochrome c transfers electrons to terminal oxidase METPO:2007403

  Cytochrome c delivers electrons to the terminal oxidase (Complex IV).

  • DOI:10.1073/pnas.2307093120 Onward via cytochrome c to terminal oxidases (Complex IV) that reduce O2 to H2O.
• terminal oxidase reduces oxygen METPO:2000017

  The terminal oxidase reduces molecular oxygen to water in aerobic respiration.

  • DOI:10.1073/pnas.2307093120 Terminal oxidases (Complex IV) reduce O2 to H2O (broad aerobic respiration edge).