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P32808

- COX3_HELAN

UniProt

P32808 - COX3_HELAN

Protein

Cytochrome c oxidase subunit 3

Gene

COX3

Organism
Helianthus annuus (Common sunflower)
Status
Reviewed - Annotation score: 3 out of 5- Protein inferred from homologyi
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    • History
      Entry version 75 (01 Oct 2014)
      Sequence version 1 (01 Oct 1993)
      Previous versions | rss
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    Functioni

    Subunits I, II and III form the functional core of the enzyme complex.

    Catalytic activityi

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

    GO - Molecular functioni

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

    GO - Biological processi

    1. aerobic electron transport chain Source: InterPro

    Keywords - Molecular functioni

    Oxidoreductase

    Names & Taxonomyi

    Protein namesi
    Recommended name:
    Cytochrome c oxidase subunit 3 (EC:1.9.3.1)
    Alternative name(s):
    Cytochrome c oxidase polypeptide III
    Gene namesi
    Name:COX3
    Synonyms:COXIII
    Encoded oniMitochondrion
    OrganismiHelianthus annuus (Common sunflower)
    Taxonomic identifieri4232 [NCBI]
    Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaeasteridscampanulidsAsteralesAsteraceaeAsteroideaeHeliantheae allianceHeliantheaeHelianthus

    Subcellular locationi

    GO - Cellular componenti

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

    Keywords - Cellular componenti

    Membrane, Mitochondrion, Mitochondrion inner membrane

    PTM / Processingi

    Molecule processing

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Chaini1 – 265265Cytochrome c oxidase subunit 3PRO_0000183790Add
    BLAST

    Structurei

    3D structure databases

    ProteinModelPortaliP32808.
    SMRiP32808. Positions 3-264.
    ModBaseiSearch...
    MobiDBiSearch...

    Transmembrane

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Transmembranei16 – 3621HelicalSequence AnalysisAdd
    BLAST
    Transmembranei41 – 6121HelicalSequence AnalysisAdd
    BLAST
    Transmembranei81 – 10121HelicalSequence AnalysisAdd
    BLAST
    Transmembranei162 – 18221HelicalSequence AnalysisAdd
    BLAST
    Transmembranei200 – 22021HelicalSequence AnalysisAdd
    BLAST
    Transmembranei245 – 26521HelicalSequence AnalysisAdd
    BLAST

    Family & Domainsi

    Sequence similaritiesi

    Keywords - Domaini

    Transmembrane, Transmembrane helix

    Family and domain databases

    Gene3Di1.20.120.80. 1 hit.
    InterProiIPR024791. Cyt_c/ubiquinol_Oxase_su3.
    IPR013833. Cyt_c_oxidase_su3_a-hlx.
    IPR000298. Cyt_c_oxidase_su3_dom.
    [Graphical view]
    PANTHERiPTHR11403. PTHR11403. 1 hit.
    PfamiPF00510. COX3. 1 hit.
    [Graphical view]
    SUPFAMiSSF81452. SSF81452. 1 hit.
    PROSITEiPS50253. COX3. 1 hit.
    [Graphical view]

    Sequencei

    Sequence statusi: Complete.

    P32808-1 [UniParc]FASTAAdd to Basket

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    MIESQRHSYH LVDPSPWPIS GSLGALATTV GGVMYMHSFQ GGATLLSLGL    50
    IFILYTMFVW WRDVLRESTL EGHHTKVVQL GPRYGFILFI VSEVMFLFAL 100
    FRASSHSSLA PTVEIGGIWP PKGIAVLDPR EIPFLNTPIP LSSGAAVTWA 150
    HHAILAGKEK RAVYALVATV SLALVFTAFQ GMEYYQAPST ISDSIYGSTF 200
    FLATGFHGFH VIIGTLFSIV CGIRQYLGHL TKEHHVGFEA AAWYWHFVDV 250
    VRLFPFVSIY WWGGI 265
    Length:265
    Mass (Da):29,423
    Last modified:October 1, 1993 - v1
    Checksum:iBE30F0236E86C9EE
    GO

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    X57669 Genomic DNA. Translation: CAA40865.1.
    PIRiS14123.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    X57669 Genomic DNA. Translation: CAA40865.1 .
    PIRi S14123.

    3D structure databases

    ProteinModelPortali P32808.
    SMRi P32808. Positions 3-264.
    ModBasei Search...
    MobiDBi Search...

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Family and domain databases

    Gene3Di 1.20.120.80. 1 hit.
    InterProi IPR024791. Cyt_c/ubiquinol_Oxase_su3.
    IPR013833. Cyt_c_oxidase_su3_a-hlx.
    IPR000298. Cyt_c_oxidase_su3_dom.
    [Graphical view ]
    PANTHERi PTHR11403. PTHR11403. 1 hit.
    Pfami PF00510. COX3. 1 hit.
    [Graphical view ]
    SUPFAMi SSF81452. SSF81452. 1 hit.
    PROSITEi PS50253. COX3. 1 hit.
    [Graphical view ]
    ProtoNeti Search...

    Publicationsi

    1. "The cytochrome oxidase subunit III gene in sunflower mitochondria is cotranscribed with an open reading frame conserved in higher plants."
      Quagliariello C., Saiardi A., Gallerani R.
      Curr. Genet. 18:355-363(1990) [PubMed] [Europe PMC] [Abstract]
      Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
      Strain: cv. Gloriasol.

    Entry informationi

    Entry nameiCOX3_HELAN
    AccessioniPrimary (citable) accession number: P32808
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: October 1, 1993
    Last sequence update: October 1, 1993
    Last modified: October 1, 2014
    This is version 75 of the entry and version 1 of the sequence. [Complete history]
    Entry statusiReviewed (UniProtKB/Swiss-Prot)
    Annotation programPlant Protein Annotation Program

    Miscellaneousi

    Documents

    1. SIMILARITY comments
      Index of protein domains and families

    External Data

    Dasty 3