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P98003

- COX1_CRION

UniProt

P98003 - COX1_CRION

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Protein

Cytochrome c oxidase subunit 1

Gene
COI
Organism
Crithidia oncopelti
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 bindingi64 – 641Iron (heme A axial ligand) Inferred
Metal bindingi243 – 2431Copper B Inferred
Metal bindingi247 – 2471Copper B Inferred
Metal bindingi292 – 2921Copper B Inferred
Metal bindingi293 – 2931Copper 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:COI
Encoded oniMitochondrion
OrganismiCrithidia oncopelti
Taxonomic identifieri5657 [NCBI]
Taxonomic lineageiEukaryotaEuglenozoaKinetoplastidaTrypanosomatidaeStrigomonas

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei18 – 3821Helical; Reviewed predictionAdd
BLAST
Transmembranei42 – 6221Helical; Reviewed predictionAdd
BLAST
Transmembranei66 – 8621Helical; Reviewed predictionAdd
BLAST
Transmembranei100 – 12021Helical; Reviewed predictionAdd
BLAST
Transmembranei148 – 16821Helical; Reviewed predictionAdd
BLAST
Transmembranei186 – 20621Helical; Reviewed predictionAdd
BLAST
Transmembranei237 – 25721Helical; Reviewed predictionAdd
BLAST
Transmembranei279 – 29921Helical; Reviewed predictionAdd
BLAST
Transmembranei305 – 32521Helical; Reviewed predictionAdd
BLAST

GO - Cellular componenti

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

Keywords - Cellular componenti

Membrane, Mitochondrion, Mitochondrion inner membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – ›340›340Cytochrome c oxidase subunit 1PRO_0000183317Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Cross-linki243 ↔ 2471'-histidyl-3'-tyrosine (His-Tyr) By similarity

Structurei

3D structure databases

ProteinModelPortaliP98003.

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transmembrane, Transmembrane helix

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.

P98003-1 [UniParc]FASTAAdd to Basket

« Hide

MFWISLVCLS VSHKMIGMCY LLVAILCGFL GYIYSLFIRL ELSIIGCGVL    50
FGDYQYYNVL VTTHGLVMVF AFIMPVMMGG LVNYFVPVLS GFPDMVFPRL 100
NNMSFWMFMG GFGALVSGLL TEEGMGIGWT MYPTLICVDF HSSLACDFTV 150
FAVHLLGVSS ILNSINLLGT LFCCRRKFFS FLNWTLFIWG SLITALLLII 200
TLPVLAGGVT LVLCDRNFNT SFYDVVGGGD LLLFQHLFWF FGHPEVYIII 250
IPVFGLISTM VEVLGFRCVF SSVAMIYSMI LIAILGFFVW AHHMFVVGMD 300
VDTRAYFGSV TVLIGLPTCI KLFNWTYSFL YTDFIIAFEA 340
Length:340
Mass (Da):38,174
Last modified:February 1, 1996 - v1
Checksum:i65D78B06AFD07B54
GO

Non-terminal residue

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Non-terminal residuei340 – 3401

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X56015 Genomic DNA. Translation: CAA39490.1.
PIRiS34958.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X56015 Genomic DNA. Translation: CAA39490.1 .
PIRi S34958.

3D structure databases

ProteinModelPortali P98003.
ModBasei Search...
MobiDBi Search...

Protocols and materials databases

Structural Biology Knowledgebase Search...

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. Maslov D.A., Horvath A., Gwang K. II, Kolesnikov A.A.
    Submitted (OCT-1990) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: S-068.

Entry informationi

Entry nameiCOX1_CRION
AccessioniPrimary (citable) accession number: P98003
Entry historyi
Integrated into UniProtKB/Swiss-Prot: February 1, 1996
Last sequence update: February 1, 1996
Last modified: September 3, 2014
This is version 72 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)

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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