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Q9G2X2

- COX2_MYXGL

UniProt

Q9G2X2 - COX2_MYXGL

Protein

Cytochrome c oxidase subunit 2

Gene

MT-CO2

Organism
Myxine glutinosa (Atlantic hagfish)
Status
Reviewed - Annotation score: 4 out of 5- Protein inferred from homologyi
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    • History
      Entry version 82 (01 Oct 2014)
      Sequence version 1 (01 Mar 2001)
      Previous versions | rss
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    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.

    Cofactori

    Copper A.

    Sites

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Metal bindingi162 – 1621Copper ACurated
    Metal bindingi197 – 1971Copper ACurated
    Metal bindingi201 – 2011Copper ACurated
    Metal bindingi205 – 2051Copper ACurated

    GO - Molecular functioni

    1. copper ion binding Source: InterPro
    2. cytochrome-c oxidase activity Source: UniProtKB-EC

    GO - Biological processi

    1. electron transport chain Source: InterPro

    Keywords - Molecular functioni

    Oxidoreductase

    Keywords - Biological processi

    Electron transport, Respiratory chain, Transport

    Keywords - Ligandi

    Copper, Metal-binding

    Names & Taxonomyi

    Protein namesi
    Recommended name:
    Cytochrome c oxidase subunit 2 (EC:1.9.3.1)
    Alternative name(s):
    Cytochrome c oxidase polypeptide II
    Gene namesi
    Name:MT-CO2
    Synonyms:COII, COXII, MTCO2
    Encoded oniMitochondrion
    OrganismiMyxine glutinosa (Atlantic hagfish)
    Taxonomic identifieri7769 [NCBI]
    Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataCyclostomataHyperotretiMyxiniformesMyxinidaeMyxininaeMyxine

    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 – 229229Cytochrome c oxidase subunit 2PRO_0000183637Add
    BLAST

    Structurei

    3D structure databases

    ProteinModelPortaliQ9G2X2.
    SMRiQ9G2X2. Positions 1-227.
    ModBaseiSearch...
    MobiDBiSearch...

    Topological domain

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Topological domaini1 – 2626Mitochondrial intermembraneSequence AnalysisAdd
    BLAST
    Topological domaini49 – 6214Mitochondrial matrixSequence AnalysisAdd
    BLAST
    Topological domaini83 – 229147Mitochondrial intermembraneSequence AnalysisAdd
    BLAST

    Transmembrane

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Transmembranei27 – 4822HelicalCuratedAdd
    BLAST
    Transmembranei63 – 8220HelicalCuratedAdd
    BLAST

    Family & Domainsi

    Sequence similaritiesi

    Keywords - Domaini

    Transmembrane, Transmembrane helix

    Phylogenomic databases

    HOVERGENiHBG012727.

    Family and domain databases

    Gene3Di1.10.287.90. 1 hit.
    2.60.40.420. 1 hit.
    InterProiIPR001505. Copper_CuA.
    IPR008972. Cupredoxin.
    IPR014222. Cyt_c_oxidase_su2.
    IPR002429. Cyt_c_oxidase_su2_C.
    IPR011759. Cyt_c_oxidase_su2_TM_dom.
    [Graphical view]
    PfamiPF00116. COX2. 1 hit.
    PF02790. COX2_TM. 1 hit.
    [Graphical view]
    SUPFAMiSSF49503. SSF49503. 1 hit.
    SSF81464. SSF81464. 1 hit.
    TIGRFAMsiTIGR02866. CoxB. 1 hit.
    PROSITEiPS00078. COX2. 1 hit.
    PS50857. COX2_CUA. 1 hit.
    PS50999. COX2_TM. 1 hit.
    [Graphical view]

    Sequencei

    Sequence statusi: Complete.

    Q9G2X2-1 [UniParc]FASTAAdd to Basket

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    MANHLQFNFQ DATSPLMQEL VKFHDHSLTI LFFISALILY VLMMTSLSKL    50
    TNKNILDSQE IEMVWTVIPA FILIMLALPS IQILYLMDEI ASPDITIKTV 100
    GHQWYWTYEF SDLSKESEIE SYMLPTADLQ NGDFRLLEVD NRISVPMDSK 150
    IRMLITSEDV LHAWTLPSMG IKVDAVPGRL NQVTFSSSLP GLFFGQCSEI 200
    CGANHSFMPI AMEVIPLKTF ESWIIKLSL 229
    Length:229
    Mass (Da):26,070
    Last modified:March 1, 2001 - v1
    Checksum:i676578489BA05F92
    GO

    Experimental Info

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Sequence conflicti41 – 411V → I in CAA75482. (PubMed:9541532)Curated
    Sequence conflicti131 – 1311N → K in CAA75482. (PubMed:9541532)Curated
    Sequence conflicti211 – 2111A → T in CAA75482. (PubMed:9541532)Curated

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    Y15183 Genomic DNA. Translation: CAA75482.2.
    AJ404477 Genomic DNA. Translation: CAC20652.1.
    RefSeqiNP_073276.1. NC_002639.1.

    Genome annotation databases

    GeneIDi802340.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    Y15183 Genomic DNA. Translation: CAA75482.2 .
    AJ404477 Genomic DNA. Translation: CAC20652.1 .
    RefSeqi NP_073276.1. NC_002639.1.

    3D structure databases

    ProteinModelPortali Q9G2X2.
    SMRi Q9G2X2. Positions 1-227.
    ModBasei Search...
    MobiDBi Search...

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Genome annotation databases

    GeneIDi 802340.

    Organism-specific databases

    CTDi 4513.

    Phylogenomic databases

    HOVERGENi HBG012727.

    Family and domain databases

    Gene3Di 1.10.287.90. 1 hit.
    2.60.40.420. 1 hit.
    InterProi IPR001505. Copper_CuA.
    IPR008972. Cupredoxin.
    IPR014222. Cyt_c_oxidase_su2.
    IPR002429. Cyt_c_oxidase_su2_C.
    IPR011759. Cyt_c_oxidase_su2_TM_dom.
    [Graphical view ]
    Pfami PF00116. COX2. 1 hit.
    PF02790. COX2_TM. 1 hit.
    [Graphical view ]
    SUPFAMi SSF49503. SSF49503. 1 hit.
    SSF81464. SSF81464. 1 hit.
    TIGRFAMsi TIGR02866. CoxB. 1 hit.
    PROSITEi PS00078. COX2. 1 hit.
    PS50857. COX2_CUA. 1 hit.
    PS50999. COX2_TM. 1 hit.
    [Graphical view ]
    ProtoNeti Search...

    Publicationsi

    1. "The mitochondrial DNA molecule of the hagfish (Myxine glutinosa) and vertebrate phylogeny."
      Rasmussen A.S., Janke A., Arnason U.
      J. Mol. Evol. 46:382-388(1998) [PubMed] [Europe PMC] [Abstract]
      Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    2. "The complete mitochondrial genome of the hagfish Myxine glutinosa: unique features of the control region."
      Delarbre C., Rasmussen A.S., Arnason U., Gachelin G.
      J. Mol. Evol. 53:634-641(2001) [PubMed] [Europe PMC] [Abstract]
      Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].

    Entry informationi

    Entry nameiCOX2_MYXGL
    AccessioniPrimary (citable) accession number: Q9G2X2
    Secondary accession number(s): O63914
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: August 14, 2001
    Last sequence update: March 1, 2001
    Last modified: October 1, 2014
    This is version 82 of the entry and version 1 of the sequence. [Complete history]
    Entry statusiReviewed (UniProtKB/Swiss-Prot)
    Annotation programChordata Protein Annotation Program

    Miscellaneousi

    Documents

    1. SIMILARITY comments
      Index of protein domains and families

    External Data

    Dasty 3