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Protein

Cytochrome c oxidase subunit 1

Gene

mt:CoI

Organism
Drosophila sechellia (Fruit fly)
Status
Reviewed-Annotation score: Annotation score: 4 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. CO I is the catalytic subunit of the enzyme. Electrons originating in cytochrome c are transferred via the copper A center of subunit 2 and heme A of subunit 1 to the bimetallic center formed by heme A3 and copper B.

Catalytic activityi

4 ferrocytochrome c + O2 + 4 H+ = 4 ferricytochrome c + 2 H2O.

Pathway: oxidative phosphorylation

This protein is involved in the pathway oxidative phosphorylation, which is part of Energy metabolism.
View all proteins of this organism that are known to be involved in the pathway oxidative phosphorylation and in Energy metabolism.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi59 – 591Iron (heme A axial ligand)Curated
Metal bindingi238 – 2381Copper BCurated
Metal bindingi242 – 2421Copper BCurated
Metal bindingi288 – 2881Copper BCurated
Metal bindingi289 – 2891Copper BCurated
Metal bindingi374 – 3741Iron (heme A3 axial ligand)Curated
Metal bindingi376 – 3761Iron (heme A axial ligand)Curated

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Electron transport, Respiratory chain, Transport

Keywords - Ligandi

Copper, Heme, Iron, Metal-binding

Enzyme and pathway databases

UniPathwayiUPA00705.

Names & Taxonomyi

Protein namesi
Recommended name:
Cytochrome c oxidase subunit 1 (EC:1.9.3.1)
Alternative name(s):
Cytochrome c oxidase polypeptide I
Gene namesi
Name:mt:CoI
Synonyms:CoI
Encoded oniMitochondrion
OrganismiDrosophila sechellia (Fruit fly)
Taxonomic identifieri7238 [NCBI]
Taxonomic lineageiEukaryotaMetazoaEcdysozoaArthropodaHexapodaInsectaPterygotaNeopteraEndopterygotaDipteraBrachyceraMuscomorphaEphydroideaDrosophilidaeDrosophilaSophophora
ProteomesiUP000001292 Componenti: Mitochondrion

Organism-specific databases

FlyBaseiFBgn0012794. Dsec\mt:CoI.

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei15 – 3521HelicalSequence AnalysisAdd
BLAST
Transmembranei54 – 7421HelicalSequence AnalysisAdd
BLAST
Transmembranei100 – 12021HelicalSequence AnalysisAdd
BLAST
Transmembranei143 – 16321HelicalSequence AnalysisAdd
BLAST
Transmembranei181 – 20121HelicalSequence AnalysisAdd
BLAST
Transmembranei232 – 25221HelicalSequence AnalysisAdd
BLAST
Transmembranei266 – 28621HelicalSequence AnalysisAdd
BLAST
Transmembranei303 – 32321HelicalSequence AnalysisAdd
BLAST
Transmembranei336 – 35621HelicalSequence AnalysisAdd
BLAST
Transmembranei378 – 39821HelicalSequence AnalysisAdd
BLAST
Transmembranei412 – 43221HelicalSequence AnalysisAdd
BLAST
Transmembranei450 – 47021HelicalSequence AnalysisAdd
BLAST

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Membrane, Mitochondrion, Mitochondrion inner membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 511511Cytochrome c oxidase subunit 1PRO_0000183327Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Cross-linki238 ↔ 2421'-histidyl-3'-tyrosine (His-Tyr)By similarity

Structurei

3D structure databases

ProteinModelPortaliQ34391.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

KOiK02256.

Family and domain databases

Gene3Di1.20.210.10. 1 hit.
InterProiIPR000883. COX1.
IPR023615. Cyt_c_Oxase_su1_BS.
IPR023616. Cyt_c_Oxase_su1_dom.
[Graphical view]
PANTHERiPTHR10422. PTHR10422. 1 hit.
PfamiPF00115. COX1. 1 hit.
[Graphical view]
PRINTSiPR01165. CYCOXIDASEI.
SUPFAMiSSF81442. SSF81442. 1 hit.
PROSITEiPS50855. COX1. 1 hit.
PS00077. COX1_CUB. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q34391-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
PRQWLFSTNH KDIGTLYFIF GAWAGMVGTS LSILIRAELG HPGALIGDDQ
60 70 80 90 100
IYNVIVTAHA FIMIFFMVMP IMIGGFGNWL VPLMLGAPDM AFPRMNNMSF
110 120 130 140 150
WLLPPALSLL LVSSMVENGA GTGWTVYPPL SAGIAHGGAS VDLAIFSLHL
160 170 180 190 200
AGISSILGAV NFITTVINMR STGISLDRMP LFVWSVVITA LLLLLSLPVL
210 220 230 240 250
AGAITMLLTD RNLNTSFFDP AGGGDPILYQ HLFWFFGHPE VYILILPGFG
260 270 280 290 300
MISHIISQES GKKETFGSLG MIYAMLAIGL LGFIVWAHHM FTVGMDVDTR
310 320 330 340 350
AYFTSATMII AVPTGIKIFS WLATLHGTQL SYSPAILWAL GFVFLFTVGG
360 370 380 390 400
LTGVVLANSS VDIILHDTYY VVAHFHYVLS MGAVFAIMAG FIHWYPLFTG
410 420 430 440 450
LTLNNKWLKS QFITMFIGVN LTFFPQHFLG LAGMPRRYSD YPDAYTTWNI
460 470 480 490 500
VSTIGSTISL LGILFFFFII WESLVSQRQV IYPIQLNSSI EWYQNTPPAE
510
HSYSELPLLT N
Length:511
Mass (Da):56,361
Last modified:November 28, 2012 - v2
Checksum:i1A1E80FF60B17C22
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M57908 Genomic DNA. Translation: AAB02286.1.
AF200832 Genomic DNA. Translation: AAF77290.1.
RefSeqiNP_982310.2. NC_005780.1.

Genome annotation databases

GeneIDi2760948.
KEGGidse:COX1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M57908 Genomic DNA. Translation: AAB02286.1.
AF200832 Genomic DNA. Translation: AAF77290.1.
RefSeqiNP_982310.2. NC_005780.1.

3D structure databases

ProteinModelPortaliQ34391.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi2760948.
KEGGidse:COX1.

Organism-specific databases

CTDi4512.
FlyBaseiFBgn0012794. Dsec\mt:CoI.

Phylogenomic databases

KOiK02256.

Enzyme and pathway databases

UniPathwayiUPA00705.

Family and domain databases

Gene3Di1.20.210.10. 1 hit.
InterProiIPR000883. COX1.
IPR023615. Cyt_c_Oxase_su1_BS.
IPR023616. Cyt_c_Oxase_su1_dom.
[Graphical view]
PANTHERiPTHR10422. PTHR10422. 1 hit.
PfamiPF00115. COX1. 1 hit.
[Graphical view]
PRINTSiPR01165. CYCOXIDASEI.
SUPFAMiSSF81442. SSF81442. 1 hit.
PROSITEiPS50855. COX1. 1 hit.
PS00077. COX1_CUB. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

« Hide 'large scale' publications
  1. "Evolution of Drosophila mitochondrial DNA and the history of the melanogaster subgroup."
    Satta Y., Takahata N.
    Proc. Natl. Acad. Sci. U.S.A. 87:9558-9562(1990) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: SS78.
  2. "Comparative genomics of mitochondrial DNA in members of the Drosophila melanogaster subgroup."
    Ballard J.W.O.
    J. Mol. Evol. 51:48-63(2000) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: Rob3c / Tucson 14021-0248.25Imported.
  3. "Comparative genomics of Drosophila mtDNA: Novel features of conservation and change across functional domains and lineages."
    Montooth K.L., Abt D.N., Hofmann J.W., Rand D.M.
    J. Mol. Evol. 69:94-114(2009) [PubMed] [Europe PMC] [Abstract]
    Cited for: IDENTIFICATION OF PROBABLE INITIATION SITE.

Entry informationi

Entry nameiCOX1_DROSE
AccessioniPrimary (citable) accession number: Q34391
Secondary accession number(s): Q9MGM2
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 15, 2002
Last sequence update: November 28, 2012
Last modified: February 4, 2015
This is version 90 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programDrosophila annotation project

Miscellaneousi

Caution

There is no mitochondrial-type translation initiation codon present in frame in the sequence. In PubMed:19533212, the authors suggest the presence of a novel start codon coding for either Pro or Ser in Drosophila CoI transcripts.Curated

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Drosophila
    Drosophila: entries, gene names and cross-references to FlyBase
  2. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  3. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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 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.