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Details on Person UniProt:P15954 COX7C

Class:IdReferenceGeneProduct:52610
_chainChangeLogtransit peptide:1-16 added on Sat February 7 2015;chain:17-63 added on Sat February 7 2015
_displayNameUniProt:P15954 COX7C
_timestamp2026-02-20 22:20:20
chaintransit peptide:1-16
chain:17-63
checksumA7DF0F4BAF39FB28
commentFUNCTION Component of the cytochrome c oxidase, the last enzyme in the mitochondrial electron transport chain which drives oxidative phosphorylation. The respiratory chain contains 3 multisubunit complexes succinate dehydrogenase (complex II, CII), ubiquinol-cytochrome c oxidoreductase (cytochrome b-c1 complex, complex III, CIII) and cytochrome c oxidase (complex IV, CIV), that cooperate to transfer electrons derived from NADH and succinate to molecular oxygen, creating an electrochemical gradient over the inner membrane that drives transmembrane transport and the ATP synthase. Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Electrons originating from reduced cytochrome c in the intermembrane space (IMS) are transferred via the dinuclear copper A center (CU(A)) of subunit 2 and heme A of subunit 1 to the active site in subunit 1, a binuclear center (BNC) formed by heme A3 and copper B (CU(B)). The BNC reduces molecular oxygen to 2 water molecules using 4 electrons from cytochrome c in the IMS and 4 protons from the mitochondrial matrix.PATHWAY Energy metabolism; oxidative phosphorylation.SUBUNIT Component of the cytochrome c oxidase (complex IV, CIV), a multisubunit enzyme composed of 14 subunits. The complex is composed of a catalytic core of 3 subunits MT-CO1, MT-CO2 and MT-CO3, encoded in the mitochondrial DNA, and 11 supernumerary subunits COX4I1 (or COX4I2), COX5A, COX5B, COX6A1 (or COX6A2), COX6B1 (or COX6B2), COX6C, COX7A2 (or COX7A1), COX7B, COX7C, COX8A and COXFA4, which are encoded in the nuclear genome (PubMed:30030519). The complex exists as a monomer or a dimer and forms supercomplexes (SCs) in the inner mitochondrial membrane with NADH-ubiquinone oxidoreductase (complex I, CI) and ubiquinol-cytochrome c oxidoreductase (cytochrome b-c1 complex, complex III, CIII), resulting in different assemblies (supercomplex SCI(1)III(2)IV(1) and megacomplex MCI(2)III(2)IV(2)) (PubMed:28844695). Interacts with RAB5IF (PubMed:31536960).INTERACTION Belongs to the cytochrome c oxidase VIIc family.
descriptionrecommendedName: Cytochrome c oxidase subunit 7C, mitochondrial alternativeName: Cytochrome c oxidase polypeptide VIIc
geneNameCOX7C
identifierP15954
isSequenceChangedFALSE
keyword3D-structure
Acetylation
Direct protein sequencing
Membrane
Mitochondrion
Mitochondrion inner membrane
Proteomics identification
Reference proteome
Transit peptide
Transmembrane
Transmembrane helix
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
[InstanceEdit:9983091] Weiser, Joel, 2026-02-20
nameCOX7C
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8991203] ENSEMBL:ENSG00000127184 COX7C [Homo sapiens]
secondaryIdentifierCOX7C_HUMAN
Q6NR81
sequenceLength63
species[Species:48887] Homo sapiens
(referenceEntity)[EntityWithAccessionedSequence:164306] COX7C [mitochondrial inner membrane] [Homo sapiens]
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No pathways have been reviewed or authored by UniProt:P15954 COX7C (52610)