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Protein

Cytochrome c oxidase subunit 2

Gene

COX2

Organism
Trichophyton rubrum (Athlete's foot fungus) (Epidermophyton rubrum)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

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

Cu cationNote: Binds a copper A center.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi176Copper ACurated1
Metal bindingi211Copper ACurated1
Metal bindingi215Copper ACurated1
Metal bindingi219Copper ACurated1

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

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:COX2
Encoded oniMitochondrion
OrganismiTrichophyton rubrum (Athlete's foot fungus) (Epidermophyton rubrum)
Taxonomic identifieri5551 [NCBI]
Taxonomic lineageiEukaryotaFungiDikaryaAscomycotaPezizomycotinaEurotiomycetesEurotiomycetidaeOnygenalesArthrodermataceaeTrichophyton

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Topological domaini1 – 30Mitochondrial intermembraneSequence analysisAdd BLAST30
Transmembranei31 – 51HelicalSequence analysisAdd BLAST21
Topological domaini52 – 67Mitochondrial matrixSequence analysisAdd BLAST16
Transmembranei68 – 94HelicalSequence analysisAdd BLAST27
Topological domaini95 – 237Mitochondrial intermembraneSequence analysisAdd BLAST143

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Membrane, Mitochondrion, Mitochondrion inner membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001837061 – 237Cytochrome c oxidase subunit 2Add BLAST237

Structurei

3D structure databases

ProteinModelPortaliQ01556.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transmembrane, Transmembrane helix

Family and domain databases

Gene3Di1.10.287.90. 1 hit.
2.60.40.420. 1 hit.
InterProiIPR001505. Copper_CuA.
IPR008972. Cupredoxin.
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.
PROSITEiPS00078. COX2. 1 hit.
PS50857. COX2_CUA. 1 hit.
PS50999. COX2_TM. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q01556-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MNLVAPTPWG LFFQDSATPQ MEGIEELHNN IMFYLTIILF SVTWMMITII
60 70 80 90 100
KSFVNTKSPI SHKYMNHGTL IELIWTITPA VILILIAFPS FKLLYLMDEV
110 120 130 140 150
MDPSLVIYGE GHQWYWSYQY PDFTNADGEF VEFDSYIVPE SDLEEGTLRM
160 170 180 190 200
LEVDNRVIIP ELTHTRFVIS AADVIHSFAC PSLGIKCDAY PGRLNQSSVY
210 220 230
LNRQGTYFGQ CSEICGILHS SMPIVIQSVS LKNFYYD
Length:237
Mass (Da):27,154
Last modified:June 1, 1994 - v1
Checksum:i56CBADE880426C2D
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X65223 Genomic DNA. Translation: CAA46327.1.
PIRiS26949.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X65223 Genomic DNA. Translation: CAA46327.1.
PIRiS26949.

3D structure databases

ProteinModelPortaliQ01556.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Family and domain databases

Gene3Di1.10.287.90. 1 hit.
2.60.40.420. 1 hit.
InterProiIPR001505. Copper_CuA.
IPR008972. Cupredoxin.
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.
PROSITEiPS00078. COX2. 1 hit.
PS50857. COX2_CUA. 1 hit.
PS50999. COX2_TM. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiCOX2_TRIRU
AccessioniPrimary (citable) accession number: Q01556
Entry historyi
Integrated into UniProtKB/Swiss-Prot: June 1, 1994
Last sequence update: June 1, 1994
Last modified: January 7, 2015
This is version 86 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programFungal Protein Annotation Program

Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families

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 one 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.