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Protein

Cytochrome c oxidase subunit 2

Gene
N/A
Organism
Pneumocystis carinii
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 bindingi178Copper ACurated1
Metal bindingi213Copper ACurated1
Metal bindingi217Copper ACurated1
Metal bindingi221Copper 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
Encoded oniMitochondrion
OrganismiPneumocystis carinii
Taxonomic identifieri4754 [NCBI]
Taxonomic lineageiEukaryotaFungiDikaryaAscomycotaTaphrinomycotinaPneumocystidomycetesPneumocystidaceaePneumocystis

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cell wall Cytoskeleton Vacuole 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 – 34Mitochondrial intermembraneSequence analysisAdd BLAST34
Transmembranei35 – 55HelicalSequence analysisAdd BLAST21
Topological domaini56 – 74Mitochondrial matrixSequence analysisAdd BLAST19
Transmembranei75 – 97HelicalSequence analysisAdd BLAST23
Topological domaini98 – 243Mitochondrial intermembraneSequence analysisAdd BLAST146

Keywords - Cellular componenti

Membrane, Mitochondrion, Mitochondrion inner membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001836641 – 243Cytochrome c oxidase subunit 2Add BLAST243

Structurei

3D structure databases

ProteinModelPortaliP29163
SMRiP29163
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transmembrane, Transmembrane helix

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.

P29163-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MNNIIHNDAP TPWGIYFQDG ASPVYDGIVE LHDQVLFYLL IVLVGVSWIL
60 70 80 90 100
FSTILRFRGS GIVHKYHNHS TTIEFVWTVS PALLLIAIAF PSFKLLYLMD
110 120 130 140 150
EVIDPSITIK AIGHQWYWSY EYSDYTDKEG QSIEFDSYML PTEDLEEGQL
160 170 180 190 200
RQLEVDNRVL VPVNTPLRFI ITATDVLHDF AVPSLGIKVD ASPGRLNQVS
210 220 230 240
TYVQREGVYY GQCSELCGVL HSSMPIVIEA VSLEKFLSWL DNQ
Length:243
Mass (Da):27,636
Last modified:December 1, 1992 - v1
Checksum:i27EB1EB0504AF239
GO

Sequence databases

PIRiS16283 OBUNMP
RefSeqiYP_009186396.1, NC_013660.2

Genome annotation databases

GeneIDi26373797

Similar proteinsi

Entry informationi

Entry nameiCOX2_PNECA
AccessioniPrimary (citable) accession number: P29163
Entry historyiIntegrated into UniProtKB/Swiss-Prot: December 1, 1992
Last sequence update: December 1, 1992
Last modified: March 28, 2018
This is version 94 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programFungal Protein Annotation Program
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health