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Protein

Cytochrome c oxidase subunit 3

Gene

MT-CO3

Organism
Pelomedusa subrufa (African side-necked turtle)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

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

GO - Biological processi

Complete GO annotation...

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:MT-CO3
Synonyms:COIII, COXIII, MTCO3
Encoded oniMitochondrion
OrganismiPelomedusa subrufa (African side-necked turtle)
Taxonomic identifieri44522 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiArchelosauriaTestudinesPleurodiraPelomedusidaePelomedusa

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei31 – 5121HelicalSequence AnalysisAdd
BLAST
Transmembranei81 – 10121HelicalSequence AnalysisAdd
BLAST
Transmembranei127 – 14721HelicalSequence AnalysisAdd
BLAST
Transmembranei162 – 18221HelicalSequence AnalysisAdd
BLAST
Transmembranei197 – 21721HelicalSequence AnalysisAdd
BLAST
Transmembranei239 – 25921HelicalSequence AnalysisAdd
BLAST

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Membrane, Mitochondrion, Mitochondrion inner membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 261261Cytochrome c oxidase subunit 3PRO_0000183828Add
BLAST

Structurei

3D structure databases

ProteinModelPortaliO79676.
SMRiO79676. Positions 1-261.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

HOVERGENiHBG016686.

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.

O79676-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTNQLHPFHM TNPSPWPLTG ATAALLMTSG LIMWFHYNSS QLIMLGLLIM
60 70 80 90 100
LLTLTQWWRD IVRESTFQGH HTPSVQNNLR YGMILFITSE ILFFTGFFWA
110 120 130 140 150
FYHSSLSPTA ELGNIWPPTG ITPLNPFEVP LLNTAVLLAS GVTITWAHHS
160 170 180 190 200
LMEGNRPQTL QALTLTIILG TYFTILQAME YFEASFTIAD SIYGSTFFVA
210 220 230 240 250
TGFHGLHVII GSTFLIVCLM RQLKYHFTSH HHFGFEAAAW YWHFVDVIWL
260
FLYLSIYWWG S
Length:261
Mass (Da):29,934
Last modified:November 1, 1998 - v1
Checksum:iA09EEEB65C23C82C
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF039066 Genomic DNA. Translation: AAD05056.1.
PIRiT11107.
RefSeqiNP_008438.1. NC_001947.1.

Genome annotation databases

GeneIDi808279.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF039066 Genomic DNA. Translation: AAD05056.1.
PIRiT11107.
RefSeqiNP_008438.1. NC_001947.1.

3D structure databases

ProteinModelPortaliO79676.
SMRiO79676. Positions 1-261.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi808279.

Organism-specific databases

CTDi4514.

Phylogenomic databases

HOVERGENiHBG016686.

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]
ProtoNetiSearch...

Publicationsi

  1. "Complete mitochondrial genome suggests diapsid affinities of turtles."
    Zardoya R., Meyer A.
    Proc. Natl. Acad. Sci. U.S.A. 95:14226-14231(1998) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].

Entry informationi

Entry nameiCOX3_PELSU
AccessioniPrimary (citable) accession number: O79676
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 15, 1999
Last sequence update: November 1, 1998
Last modified: February 4, 2015
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

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.