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O03524

- COX1_DRONO

UniProt

O03524 - COX1_DRONO

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Protein

Cytochrome c oxidase subunit 1

Gene
MT-CO1, COI, COXI, MTCO1
Organism
Dromaius novaehollandiae (Emu)
Status
Reviewed - 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.

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi62 – 621Iron (heme A axial ligand) Inferred
Metal bindingi241 – 2411Copper B Inferred
Metal bindingi245 – 2451Copper B Inferred
Metal bindingi291 – 2911Copper B Inferred
Metal bindingi292 – 2921Copper B Inferred

GO - Molecular functioni

  1. cytochrome-c oxidase activity Source: UniProtKB-EC
  2. heme binding Source: InterPro
  3. iron ion binding Source: InterPro

GO - Biological processi

  1. aerobic respiration Source: InterPro
  2. oxidative phosphorylation Source: UniProtKB-UniPathway
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-CO1
Synonyms:COI, COXI, MTCO1
Encoded oniMitochondrion
OrganismiDromaius novaehollandiae (Emu)
Taxonomic identifieri8790 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiTestudines + Archosauria groupArchosauriaDinosauriaSaurischiaTheropodaCoelurosauriaAvesPalaeognathaeCasuariiformesDromaiidaeDromaius

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei18 – 3821Helical; Reviewed predictionAdd
BLAST
Transmembranei64 – 8421Helical; Reviewed predictionAdd
BLAST
Transmembranei103 – 12321Helical; Reviewed predictionAdd
BLAST
Transmembranei146 – 16621Helical; Reviewed predictionAdd
BLAST
Transmembranei184 – 20421Helical; Reviewed predictionAdd
BLAST
Transmembranei235 – 25521Helical; Reviewed predictionAdd
BLAST
Transmembranei269 – 28921Helical; Reviewed predictionAdd
BLAST
Transmembranei311 – 33121Helical; Reviewed predictionAdd
BLAST

GO - Cellular componenti

  1. integral component of membrane Source: UniProtKB-KW
  2. mitochondrial inner membrane Source: UniProtKB-SubCell
  3. respiratory chain complex IV Source: UniProtKB
Complete GO annotation...

Keywords - Cellular componenti

Membrane, Mitochondrion, Mitochondrion inner membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – ›337›337Cytochrome c oxidase subunit 1PRO_0000183326Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Cross-linki241 ↔ 2451'-histidyl-3'-tyrosine (His-Tyr) By similarity

Structurei

3D structure databases

ProteinModelPortaliO03524.
SMRiO03524. Positions 3-337.

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

HOVERGENiHBG003841.

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: Fragment.

O03524-1 [UniParc]FASTAAdd to Basket

« Hide

MTFITRWFFS TNHKDIGTLY LIFGAWAGMV GTALSLLIRA ELGQPGTLLG    50
DDQIYNVVVT AHAFVMIFFM VMPVMIGGFG NWLVPLMIGA PDMAFPRMNN 100
MSFWLLPPSF LLLLASSTVE AGAGTGWTVY PPLAGNLAHA GASVDLAIFS 150
LHLAGVSSIL GAINFITTAI NMKPPALTQY QTPLFVWSVL ITAILLLLSL 200
PVLAAGITML LTDRNLNTTF FDPAGGGDPV LYQHLFWFFG HPEVYILILP 250
GFGMISHVVT YYAGKKEPFG YMGMVWAMLS IGFLGFIVWA HHMFTVGMDV 300
DTRAYFTSAT MIIAIPTGIK VFSWLATLHG GTIKWDP 337
Length:337
Mass (Da):36,786
Last modified:July 1, 1997 - v1
Checksum:i662D7FDD03F7BE02
GO

Non-terminal residue

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Non-terminal residuei337 – 3371

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
U76059 Genomic DNA. Translation: AAB61319.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
U76059 Genomic DNA. Translation: AAB61319.1 .

3D structure databases

ProteinModelPortali O03524.
SMRi O03524. Positions 3-337.
ModBasei Search...
MobiDBi Search...

Protocols and materials databases

Structural Biology Knowledgebase Search...

Phylogenomic databases

HOVERGENi HBG003841.

Enzyme and pathway databases

UniPathwayi UPA00705 .

Family and domain databases

Gene3Di 1.20.210.10. 1 hit.
InterProi IPR000883. COX1.
IPR023615. Cyt_c_Oxase_su1_BS.
IPR023616. Cyt_c_Oxase_su1_dom.
[Graphical view ]
PANTHERi PTHR10422. PTHR10422. 1 hit.
Pfami PF00115. COX1. 1 hit.
[Graphical view ]
PRINTSi PR01165. CYCOXIDASEI.
SUPFAMi SSF81442. SSF81442. 1 hit.
PROSITEi PS50855. COX1. 1 hit.
PS00077. COX1_CUB. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "Phylogenetic relationships of the ratite birds: resolving conflicts between molecular and morphological data sets."
    Lee K., Feinstein J., Cracraft J.
    (In) Mindell D.P. (eds.); Avian molecular evolution and systematics, pp.1-1, Academic Press, New York (1997)
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].

Entry informationi

Entry nameiCOX1_DRONO
AccessioniPrimary (citable) accession number: O03524
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 15, 1998
Last sequence update: July 1, 1997
Last modified: September 3, 2014
This is version 80 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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