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Protein

Cytochrome c oxidase subunit 2

Gene

MT-CO2

Organism
Urocyon cinereoargenteus (Gray fox)
Status
Reviewed-Annotation score: -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.

Cofactori

Cu cationNote: Binds a copper A center.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi161Copper ABy similarity1
Metal bindingi196Copper ABy similarity1
Metal bindingi200Copper ABy similarity1
Metal bindingi204Copper ABy similarity1

GO - Molecular functioni

Keywordsi

Biological processElectron transport, Respiratory chain, Transport
LigandCopper, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Cytochrome c oxidase subunit 2
Alternative name(s):
Cytochrome c oxidase polypeptide II
Gene namesi
Name:MT-CO2
Synonyms:COII, COX2, COXII, MTCO2
Encoded oniMitochondrion
OrganismiUrocyon cinereoargenteus (Gray fox)
Taxonomic identifieri55040 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCarnivoraCaniformiaCanidaeUrocyon

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Topological domaini1 – 26Mitochondrial intermembraneSequence analysisAdd BLAST26
Transmembranei27 – 48HelicalSequence analysisAdd BLAST22
Topological domaini49 – 62Mitochondrial matrixSequence analysisAdd BLAST14
Transmembranei63 – 82HelicalSequence analysisAdd BLAST20
Topological domaini83 – 227Mitochondrial intermembraneSequence analysisAdd BLAST145

Keywords - Cellular componenti

Membrane, Mitochondrion, Mitochondrion inner membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001837101 – 227Cytochrome c oxidase subunit 2Add BLAST227

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei218PhosphotyrosineBy similarity1

Keywords - PTMi

Phosphoprotein

Interactioni

Subunit structurei

Found in a complex with TMEM177, COA6, COX18, COX20, SCO1 and SCO2. Interacts with TMEM177 in a COX20-dependent manner. Interacts with COX20. Interacts with COX16.By similarity

Structurei

3D structure databases

ProteinModelPortaliO48276.
SMRiO48276.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

HOVERGENiHBG012727.

Family and domain databases

CDDicd13912. CcO_II_C. 1 hit.
Gene3Di1.10.287.90. 1 hit.
2.60.40.420. 1 hit.
InterProiView protein in InterPro
IPR002429. CcO_II-like_C.
IPR034210. CcO_II_C.
IPR001505. Copper_CuA.
IPR008972. Cupredoxin.
IPR014222. Cyt_c_oxidase_su2.
IPR011759. Cyt_c_oxidase_su2_TM_dom.
IPR036257. Cyt_c_oxidase_su2_TM_sf.
PfamiView protein in Pfam
PF00116. COX2. 1 hit.
PF02790. COX2_TM. 1 hit.
SUPFAMiSSF49503. SSF49503. 1 hit.
SSF81464. SSF81464. 1 hit.
TIGRFAMsiTIGR02866. CoxB. 1 hit.
PROSITEiView protein in PROSITE
PS00078. COX2. 1 hit.
PS50857. COX2_CUA. 1 hit.
PS50999. COX2_TM. 1 hit.

Sequencei

Sequence statusi: Complete.

O48276-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAYPFQLGLQ DATSPIMEEL LHFHDHTLMI VFLISSLVLY IISLMLTTKL
60 70 80 90 100
THTSTMDAQE VETVWTILPA IILILIALPS LRILYMMDEI NNPSLTVKTM
110 120 130 140 150
GHQWYWSYEY TDYEDLNFDS YMIPTQELKP GELRLLEVDN RVVLPMEMTV
160 170 180 190 200
RMLISSEDVL HSWAVPSLGL KTDAIPGRLN QTTLMAMRPG LYYGQCSEIC
210 220
GSNHSFMPIV LEMVPLSYFE TWSALMV
Length:227
Mass (Da):26,048
Last modified:June 1, 1998 - v1
Checksum:i65CF8CA7571208E5
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF028228 Genomic DNA. Translation: AAC00121.1.
RefSeqiYP_009128784.1. NC_026723.1.

Genome annotation databases

GeneIDi23765078.

Similar proteinsi

Entry informationi

Entry nameiCOX2_UROCI
AccessioniPrimary (citable) accession number: O48276
Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 15, 2005
Last sequence update: June 1, 1998
Last modified: March 28, 2018
This is version 96 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program