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Protein

Cytochrome c oxidase subunit 2

Gene

MT-CO2

Organism
Latimeria chalumnae (West Indian ocean coelacanth)
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.

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 bindingi161Copper ACurated1
Metal bindingi196Copper ACurated1
Metal bindingi200Copper ACurated1
Metal bindingi204Copper ACurated1

GO - Molecular functioni

Keywordsi

Molecular functionOxidoreductase
Biological processElectron transport, Respiratory chain, Transport
LigandCopper, 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:MT-CO2
Synonyms:COII, COXII, MTCO2
Encoded oniMitochondrion
OrganismiLatimeria chalumnae (West Indian ocean coelacanth)
Taxonomic identifieri7897 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiCoelacanthiformesCoelacanthidaeLatimeria
Proteomesi
  • UP000008672 Componentsi: Mitochondrion, Unassembled WGS sequence

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 – 231Mitochondrial intermembraneSequence analysisAdd BLAST149

Keywords - Cellular componenti

Membrane, Mitochondrion, Mitochondrion inner membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001836151 – 231Cytochrome c oxidase subunit 2Add BLAST231

Interactioni

Protein-protein interaction databases

STRINGi7897.ENSLACP00000021808

Structurei

3D structure databases

ProteinModelPortaliO03848
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiKOG4767 Eukaryota
COG1622 LUCA
HOVERGENiHBG012727
InParanoidiO03848
KOiK02261
TreeFamiTF344269

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.

O03848-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAHPSQLGLQ DAASPVMEEL LHFHDHALMI VFLISTLVFY IILAMMTTKM
60 70 80 90 100
TDKYILDAQE IEIVWTLLPA IVLILVALPS LRILYLIDEV ENPHLTIKAM
110 120 130 140 150
GHQWYWSYEY TDYEELSFDS YMTPLQDLNP GQFRLLETDH RMVIPMESLI
160 170 180 190 200
RVLISAEDVL HSWAVPALGV KMDAVPGRLN QITFMISRPG LYYGQCSEIC
210 220 230
GANHSFMPIV LEAIPLDPFE DWSSSMLEEA X
Length:231
Mass (Da):26,399
Last modified:July 1, 1997 - v1
Checksum:i70FEE6EC09C47FA7
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U82228 Genomic DNA Translation: AAC60321.1
PIRiD58892
RefSeqiNP_008332.1, NC_001804.1

Genome annotation databases

GeneIDi808086
KEGGilcm:808086

Similar proteinsi

Entry informationi

Entry nameiCOX2_LATCH
AccessioniPrimary (citable) accession number: O03848
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 15, 1998
Last sequence update: July 1, 1997
Last modified: March 28, 2018
This is version 110 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome
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Main funding by: National Institutes of Health