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Protein

Cytochrome c oxidase subunit 3

Gene

COIII

Organism
Branchiostoma lanceolatum (Common lancelet) (Amphioxus lanceolatum)
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:COIII
Encoded oniMitochondrion
OrganismiBranchiostoma lanceolatum (Common lancelet) (Amphioxus lanceolatum)
Taxonomic identifieri7740 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCephalochordataBranchiostomidaeBranchiostoma

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei11 – 3121HelicalSequence AnalysisAdd
BLAST
Transmembranei32 – 5221HelicalSequence AnalysisAdd
BLAST
Transmembranei83 – 10321HelicalSequence AnalysisAdd
BLAST
Transmembranei125 – 14723HelicalSequence AnalysisAdd
BLAST
Transmembranei160 – 18021HelicalSequence AnalysisAdd
BLAST
Transmembranei198 – 21821HelicalSequence AnalysisAdd
BLAST
Transmembranei240 – 26021HelicalSequence 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 – 262262Cytochrome c oxidase subunit 3PRO_0000183748Add
BLAST

Structurei

3D structure databases

ProteinModelPortaliP69215.
SMRiP69215. Positions 4-262.
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.

P69215-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTGYQPHPWH LVEPSPWPLV GGSAAFTLTV GLVMWFHYNS ISLMILGLVM
60 70 80 90 100
IVATMIQWWR DVIREATFQG CHTSYVLSGL RRGMVLFIVS EVFFFLAFFW
110 120 130 140 150
AFFHSSLAPT VELGVTWPPV GVHPLNAFAV PLLNTAVLLS SGVTVTWAHH
160 170 180 190 200
ALMEGKRTEA IQSLAITVML GLYFTGLQAW EYYEAPFTIA DSVYGSTFFV
210 220 230 240 250
ATGFHGLHVI IGSTFLMVCL GRQVFYHYTS SHHFGFEAAA WYWHFVDVVW
260
LFLYVCIYWW GS
Length:262
Mass (Da):29,711
Last modified:February 15, 2005 - v1
Checksum:i6D93D8338AC870D8
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Y16474 Genomic DNA. Translation: CAA76253.1.
PIRiH71390.
RefSeqiNP_007543.1. NC_001912.1.

Genome annotation databases

GeneIDi808215.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Y16474 Genomic DNA. Translation: CAA76253.1.
PIRiH71390.
RefSeqiNP_007543.1. NC_001912.1.

3D structure databases

ProteinModelPortaliP69215.
SMRiP69215. Positions 4-262.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi808215.

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 sequence of the amphioxus (Branchiostoma lanceolatum) mitochondrial genome: relations to vertebrates."
    Spruyt N., Delarbre C., Gachelin G., Laudet V.
    Nucleic Acids Res. 26:3279-3285(1998) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].

Entry informationi

Entry nameiCOX3_BRALA
AccessioniPrimary (citable) accession number: P69215
Secondary accession number(s): O47425
Entry historyi
Integrated into UniProtKB/Swiss-Prot: February 15, 2005
Last sequence update: February 15, 2005
Last modified: January 7, 2015
This is version 57 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.