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Electron Transport Complex IV

A multisubunit enzyme complex containing CYTOCHROME A GROUP; CYTOCHROME A3; two copper atoms; and 13 different protein subunits. It is the terminal oxidase complex of the RESPIRATORY CHAIN and collects electrons that are transferred from the reduced CYTOCHROME C GROUP and donates them to molecular OXYGEN, which is then reduced to water. The redox reaction is simultaneously coupled to the transport of PROTONS across the inner mitochondrial membrane.

Year introduced: 2004(1963)

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Subheadings:

Tree Number(s): D05.500.562.374, D08.811.600.250.687, D08.811.682.285, D12.776.157.530.450.250.875.304, D12.776.543.277.687, D12.776.543.585.450.250.875.484

MeSH Unique ID: D003576

Registry Number: EC 1.9.3.1

Entry Terms:

  • Ferrocytochrome c Oxygen Oxidoreductase
  • Cytochrome-c Oxidase (Complex IV)
  • Cytochrome Oxidase
  • Oxidase, Cytochrome
  • Cytochrome-c Oxidase
  • Cytochrome c Oxidase
  • Oxidase, Cytochrome-c
  • Signal Peptide p25-Subunit IV Cytochrome Oxidase
  • Signal Peptide p25 Subunit IV Cytochrome Oxidase
  • Pre-CTOX p25
  • p25 Presequence Peptide-Cytochrome Oxidase
  • p25 Presequence Peptide Cytochrome Oxidase
  • Cytochrome-c Oxidase Subunit III
  • Cytochrome c Oxidase Subunit III
  • Subunit III, Cytochrome Oxidase
  • Cytochrome Oxidase Subunit III
  • Cytochrome-c Oxidase Subunit IV
  • Cytochrome c Oxidase Subunit IV
  • Cytochrome aa3
  • Heme aa3 Cytochrome Oxidase
  • Cytochrome a,a3
  • Cytochrome c Oxidase Subunit VIa

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