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P80332 - CX7A2_ONCMY

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Cytochrome c oxidase subunit 7A-heart, mitochondrial

Oncorhynchus mykiss (Rainbow trout) (Salmo gairdneri)
Reviewed - Annotation score: 2 out of 5- Experimental evidence at protein leveli


This protein is one of the nuclear-coded polypeptide chains of cytochrome c oxidase, the terminal oxidase in mitochondrial electron transport.

Catalytic activityi

4 ferrocytochrome c + O2 + 4 H+ = 4 ferricytochrome c + 2 H2O.

GO - Molecular functioni

  1. cytochrome-c oxidase activity Source: UniProtKB-EC
Complete GO annotation...

Keywords - Molecular functioni


Names & Taxonomyi

Protein namesi
Recommended name:
Cytochrome c oxidase subunit 7A-heart, mitochondrial (EC:
Alternative name(s):
Cytochrome c oxidase subunit VIIa-heart
OrganismiOncorhynchus mykiss (Rainbow trout) (Salmo gairdneri)
Taxonomic identifieri8022 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiActinopterygiiNeopterygiiTeleosteiProtacanthopterygiiSalmoniformesSalmonidaeSalmoninaeOncorhynchus

Subcellular locationi

GO - Cellular componenti

  1. mitochondrial inner membrane Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Membrane, Mitochondrion, Mitochondrion inner membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – ›10›10Cytochrome c oxidase subunit 7A-heart, mitochondrialPRO_0000221003

Family & Domainsi

Sequence similaritiesi

Belongs to the cytochrome c oxidase VIIa family.Curated


Sequence statusi: Fragment.

P80332-1 [UniParc]FASTAAdd to Basket

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Mass (Da):1,177
Last modified:October 1, 1994 - v1

Experimental Info

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Non-terminal residuei10 – 101

Sequence databases



Sequence databases

PIRi S43631.

3D structure databases

ModBasei Search...
MobiDBi Search...

Protocols and materials databases

Structural Biology Knowledgebase Search...

Family and domain databases

ProtoNeti Search...


  1. "Identification of tissue-specific isoforms for subunits Vb and VIIa of cytochrome c oxidase isolated from rainbow trout."
    Freund R., Kadenbach B.
    Eur. J. Biochem. 221:1111-1116(1994) [PubMed] [Europe PMC] [Abstract]
    Cited for: PROTEIN SEQUENCE.
    Tissue: Heart.

Entry informationi

Entry nameiCX7A2_ONCMY
AccessioniPrimary (citable) accession number: P80332
Entry historyi
Integrated into UniProtKB/Swiss-Prot: October 1, 1994
Last sequence update: October 1, 1994
Last modified: January 7, 2015
This is version 55 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program


Keywords - Technical termi

Direct protein sequencing


  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.