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Electron Transport Complex IV MeSH Descriptor Data 2025
spell in titles & translations with lowercase c: cytochrome-c oxidase
Scope Note
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.
2004; see CYTOCHROME-C OXIDASE 1994-2003, see CYTOCHROME C OXIDASE 1992-1993, see CYTOCHROME OXIDASE 1963-1991; for CYTOCHROME C OXIDASE see CYTOCHROME OXIDASE 1984-1991; SIGNAL PEPTIDE P25-SUBUNIT IV CYTOCHROME OXIDASE was indexed under CYTOCHROME C OXIDASE 1988-2001; CYTOCHROME OXIDASE SUBUNIT III was indexed under CYTOCHROME C OXIDASE 1998-2001
History Note
2004(1963); for SIGNAL PEPTIDE P25-SUBUNIT IV CYTOCHROME OXIDASE use CYTOCHROME C OXIDASE (NM) 1988-2001; for CYTOCHROME OXIDASE SUBUNIT III use CYTOCHROME C OXIDASE (NM) 1998-2001
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.