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Protein

Cytochrome c oxidase subunit 2

Gene

MT-CO2

Organism
Pelomedusa subrufa (African side-necked turtle)
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
OrganismiPelomedusa subrufa (African side-necked turtle)
Taxonomic identifieri44522 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiArchelosauriaTestudinesPleurodiraPelomedusidaePelomedusa

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 – 229Mitochondrial intermembraneSequence analysisAdd BLAST147

Keywords - Cellular componenti

Membrane, Mitochondrion, Mitochondrion inner membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001836551 – 229Cytochrome c oxidase subunit 2Add BLAST229

Proteomic databases

PRIDEiO79673

Structurei

3D structure databases

ProteinModelPortaliO79673
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.

O79673-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MPTPNQTNFQ DAASPLMEEL THFHDHTLMI VFMISLLVLY ILLSMLSTKL
60 70 80 90 100
THTNTANAQQ AEMVWTILPA IILITIALPS LQILYMMDEI NKPHMTIKAI
110 120 130 140 150
GHQWYWTYEY TDYKELEFNS YMIQTQDLPL GHMRLLEVDH RMVTPLESYI
160 170 180 190 200
RMLISADDVL HSWAIPSLGL KTDAVPGRIN QAVFIIMQAG IFYGQCSEIC
210 220
GANHSFMPVV VESLPMNHFD LWLAMIDTL
Length:229
Mass (Da):26,272
Last modified:November 1, 1998 - v1
Checksum:i6C7272D25D1FAE95
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF039066 Genomic DNA Translation: AAD05053.1
PIRiT11104
RefSeqiNP_008435.1, NC_001947.1

Genome annotation databases

GeneIDi808278

Similar proteinsi

Entry informationi

Entry nameiCOX2_PELSU
AccessioniPrimary (citable) accession number: O79673
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 15, 1999
Last sequence update: November 1, 1998
Last modified: May 23, 2018
This is version 102 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

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