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P80498 - COX2_SOLTU


Cytochrome c oxidase subunit 2



Solanum tuberosum (Potato)
Reviewed - Annotation score: 3 out of 5- Experimental evidence at protein leveli
  1. Functioni

    Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Subunits 1-3 form the functional core of the enzyme complex. Subunit 2 transfers the electrons from cytochrome c via its binuclear copper A center to the bimetallic center of the catalytic subunit 1.

    Catalytic activityi

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


    Copper A.

    GO - Molecular functioni

    1. cytochrome-c oxidase activity Source: UniProtKB-EC

    GO - Biological processi

    1. electron transport chain Source: InterPro

    Keywords - Molecular functioni


    Keywords - Biological processi

    Electron transport, Respiratory chain, Transport

    Keywords - Ligandi


    Names & Taxonomyi

    Protein namesi
    Recommended name:
    Cytochrome c oxidase subunit 2 (EC:
    Alternative name(s):
    Cytochrome c oxidase polypeptide II
    Gene namesi
    Synonyms:COII, COXII
    OrganismiSolanum tuberosum (Potato)
    Taxonomic identifieri4113 [NCBI]
    Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaeasteridslamiidsSolanalesSolanaceaeSolanoideaeSolaneaeSolanum
    ProteomesiUP000011115: Unplaced

    Subcellular locationi

    GO - Cellular componenti

    1. integral component of membrane Source: UniProtKB-KW
    2. mitochondrial inner membrane Source: UniProtKB-SubCell
    3. respiratory chain Source: UniProtKB-KW

    Keywords - Cellular componenti

    Membrane, Mitochondrion, Mitochondrion inner membrane

    PTM / Processingi

    Molecule processing

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Chaini1 – ›26›26Cytochrome c oxidase subunit 2PRO_0000183692Add

    Family & Domainsi

    Sequence similaritiesi

    Keywords - Domaini


    Family and domain databases

    Gene3Di1.10.287.90. 1 hit.
    InterProiIPR011759. Cyt_c_oxidase_su2_TM_dom.
    [Graphical view]
    PfamiPF02790. COX2_TM. 1 hit.
    [Graphical view]
    SUPFAMiSSF81464. SSF81464. 1 hit.


    Sequence statusi: Fragment.

    P80498-1 [UniParc]FASTAAdd to Basket

    « Hide

    DAAEPWQLGF QDAATPIMQG IIDLHH                             26
    Mass (Da):2,875
    Last modified:February 1, 1996 - v1

    Experimental Info

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Non-terminal residuei26 – 261


    3D structure databases

    ModBasei Search...
    MobiDBi Search...

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Family and domain databases

    Gene3Di 1 hit.
    InterProi IPR011759. Cyt_c_oxidase_su2_TM_dom.
    [Graphical view ]
    Pfami PF02790. COX2_TM. 1 hit.
    [Graphical view ]
    SUPFAMi SSF81464. SSF81464. 1 hit.
    ProtoNeti Search...


    1. "New insights into the composition, molecular mass and stoichiometry of the protein complexes of plant mitochondria."
      Jansch L., Kruft V., Schmitz U.K., Braun H.P.
      Plant J. 9:357-368(1996) [PubMed] [Europe PMC] [Abstract]
      Cited for: PROTEIN SEQUENCE.
      Tissue: Tuber.

    Entry informationi

    Entry nameiCOX2_SOLTU
    AccessioniPrimary (citable) accession number: P80498
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: February 1, 1996
    Last sequence update: February 1, 1996
    Last modified: October 1, 2014
    This is version 68 of the entry and version 1 of the sequence. [Complete history]
    Entry statusiReviewed (UniProtKB/Swiss-Prot)
    Annotation programPlant Protein Annotation Program


    Keywords - Technical termi

    Complete proteome, Direct protein sequencing, Reference proteome


    1. SIMILARITY comments
      Index of protein domains and families

    External Data

    Dasty 3