A0A3Q8CTW5 · A0A3Q8CTW5_9CRUS

  • Protein
    Cytochrome c oxidase subunit 1
  • Gene
    COI
  • Status
    UniProtKB unreviewed (TrEMBL)
  • Amino acids
  • Protein existence
    Inferred from homology
  • Annotation score
    3/5

Function

function

Component of the cytochrome c oxidase, the last enzyme in the mitochondrial electron transport chain which drives oxidative phosphorylation. The respiratory chain contains 3 multisubunit complexes succinate dehydrogenase (complex II, CII), ubiquinol-cytochrome c oxidoreductase (cytochrome b-c1 complex, complex III, CIII) and cytochrome c oxidase (complex IV, CIV), that cooperate to transfer electrons derived from NADH and succinate to molecular oxygen, creating an electrochemical gradient over the inner membrane that drives transmembrane transport and the ATP synthase. Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Electrons originating from reduced cytochrome c in the intermembrane space (IMS) are transferred via the dinuclear copper A center (CU(A)) of subunit 2 and heme A of subunit 1 to the active site in subunit 1, a binuclear center (BNC) formed by heme A3 and copper B (CU(B)). The BNC reduces molecular oxygen to 2 water molecules using 4 electrons from cytochrome c in the IMS and 4 protons from the mitochondrial matrix.

Catalytic activity

Cofactor

heme (UniProtKB | Rhea| CHEBI:30413 )

Pathway

Energy metabolism; oxidative phosphorylation.

GO annotations

AspectTerm
Cellular Componentmitochondrial inner membrane
Molecular Functioncytochrome-c oxidase activity
Molecular Functionheme binding
Molecular Functionmetal ion binding
Biological Processelectron transport coupled proton transport
Biological Processmitochondrial electron transport, cytochrome c to oxygen

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    Cytochrome c oxidase subunit 1
  • EC number

Gene names

    • Name
      COI

Encoded on

  • Mitochondrion

Organism names

  • Taxonomic identifier
  • Organism
  • Taxonomic lineage
    Eukaryota > Metazoa > Ecdysozoa > Arthropoda > Crustacea > Multicrustacea > Malacostraca > Eumalacostraca > Peracarida > Amphipoda > Senticaudata > Gammarida > Gammaridira > Gammaroidea > Gammaridae > Echinogammarus

Accessions

  • Primary accession
    A0A3Q8CTW5

Subcellular Location

Mitochondrion inner membrane
; Multi-pass membrane protein

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane42-67Helical
Transmembrane88-110Helical
Transmembrane130-155Helical
Transmembrane167-194Helical

Keywords

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain1-219Cytochrome oxidase subunit I profile

Sequence similarities

Belongs to the heme-copper respiratory oxidase family.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Fragment
  • Length
    219
  • Mass (Da)
    23,553
  • Last updated
    2019-04-10 v1
  • Checksum
    4385E38B38179882
TLYFVLGAWASVVGTSMSLIIRSELSAPGNLIGDDQLYNVMVTAHAFIMIFFMVMPIMIGGFGNWLIPLMLGSPDMAFPRMNNMSFWLLPPSLTLLLLSSLVESGAGTGWTVYPPLSNSMGHSGASVDLAIFSLHLAGASSILGAINFISTILNMRAPGMSMDQMPLFVWSVFITAILLLLSLPVLAGAITMLLTDRNLNTSFFDPSGGGDPILYQHLF

Features

Showing features for non-terminal residue.

TypeIDPosition(s)Description
Non-terminal residue1
Non-terminal residue219

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
MF629683
EMBL· GenBank· DDBJ
AUD08622.1
EMBL· GenBank· DDBJ
Genomic DNA
MF629685
EMBL· GenBank· DDBJ
AUD08624.1
EMBL· GenBank· DDBJ
Genomic DNA
MF629686
EMBL· GenBank· DDBJ
AUD08625.1
EMBL· GenBank· DDBJ
Genomic DNA
MF629687
EMBL· GenBank· DDBJ
AUD08626.1
EMBL· GenBank· DDBJ
Genomic DNA
MF629688
EMBL· GenBank· DDBJ
AUD08627.1
EMBL· GenBank· DDBJ
Genomic DNA
MF629689
EMBL· GenBank· DDBJ
AUD08628.1
EMBL· GenBank· DDBJ
Genomic DNA
MF629690
EMBL· GenBank· DDBJ
AUD08629.1
EMBL· GenBank· DDBJ
Genomic DNA
MF629691
EMBL· GenBank· DDBJ
AUD08630.1
EMBL· GenBank· DDBJ
Genomic DNA
MF629692
EMBL· GenBank· DDBJ
AUD08631.1
EMBL· GenBank· DDBJ
Genomic DNA
MF629693
EMBL· GenBank· DDBJ
AUD08632.1
EMBL· GenBank· DDBJ
Genomic DNA
MF629694
EMBL· GenBank· DDBJ
AUD08633.1
EMBL· GenBank· DDBJ
Genomic DNA
MF629695
EMBL· GenBank· DDBJ
AUD08634.1
EMBL· GenBank· DDBJ
Genomic DNA
MF629696
EMBL· GenBank· DDBJ
AUD08635.1
EMBL· GenBank· DDBJ
Genomic DNA
MF629697
EMBL· GenBank· DDBJ
AUD08636.1
EMBL· GenBank· DDBJ
Genomic DNA
MF629698
EMBL· GenBank· DDBJ
AUD08637.1
EMBL· GenBank· DDBJ
Genomic DNA
MF629699
EMBL· GenBank· DDBJ
AUD08638.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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