A0A7D5BG51 · A0A7D5BG51_9GOBI

  • 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

Protein has several cofactor binding sites:
Cu cation (UniProtKB | Rhea| CHEBI:23378 )

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 > Chordata > Craniata > Vertebrata > Euteleostomi > Actinopterygii > Neopterygii > Teleostei > Neoteleostei > Acanthomorphata > Gobiaria > Gobiiformes > Gobioidei > Gobiidae > Gobionellinae > Rhinogobius

Accessions

  • Primary accession
    A0A7D5BG51

Subcellular Location

Mitochondrion inner membrane
; Multi-pass membrane protein

Features

Showing features for transmembrane.

TypeIDPosition(s)Description
Transmembrane12-42Helical
Transmembrane63-87Helical
Transmembrane107-130Helical
Transmembrane142-169Helical

Keywords

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain1-198Cytochrome oxidase subunit I profile

Sequence similarities

Belongs to the heme-copper respiratory oxidase family.

Keywords

Family and domain databases

Sequence

  • Sequence status
    Fragment
  • Length
    198
  • Mass (Da)
    21,255
  • Last updated
    2020-12-02 v1
  • Checksum
    0367D81EA616B04B
SQPGALLGDDQIYNVIVTAHAFVMIFFMVMPIMIGGFGNWLIPLMIGAPDMAFPRMNNMSFWLLPPSFLLLLASSGVEAGAGTGWTVYPPLAGNLAHAGASVDLTIFSLHLAGISSILGAINFITTILNMKPPAISQYQTPLFVWAVLITAVLLLLSLPVLAAGITMLLTDRNLNTTFFDPAGGGDPILYQHLFWFFG

Features

Showing features for non-terminal residue.

TypeIDPosition(s)Description
Non-terminal residue1
Non-terminal residue198

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
MN187019
EMBL· GenBank· DDBJ
QKX08473.1
EMBL· GenBank· DDBJ
Genomic DNA
MN187020
EMBL· GenBank· DDBJ
QKX08474.1
EMBL· GenBank· DDBJ
Genomic DNA
MN187021
EMBL· GenBank· DDBJ
QKX08475.1
EMBL· GenBank· DDBJ
Genomic DNA
MN187022
EMBL· GenBank· DDBJ
QKX08476.1
EMBL· GenBank· DDBJ
Genomic DNA
MN187023
EMBL· GenBank· DDBJ
QKX08477.1
EMBL· GenBank· DDBJ
Genomic DNA
MN187024
EMBL· GenBank· DDBJ
QKX08478.1
EMBL· GenBank· DDBJ
Genomic DNA
MN187027
EMBL· GenBank· DDBJ
QKX08481.1
EMBL· GenBank· DDBJ
Genomic DNA
MN187028
EMBL· GenBank· DDBJ
QKX08482.1
EMBL· GenBank· DDBJ
Genomic DNA
MN187029
EMBL· GenBank· DDBJ
QKX08483.1
EMBL· GenBank· DDBJ
Genomic DNA
MN187032
EMBL· GenBank· DDBJ
QKX08486.1
EMBL· GenBank· DDBJ
Genomic DNA

Similar Proteins

Disclaimer

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