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COX20

Chr 1q44

cytochrome c oxidase assembly factor COX20

Aliases:
FLJ43269
MANE:
ENST00000411948.7

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Ataxia and cerebellar anomalies - narrow panel

    BIALLELIC, autosomal or pseudoautosomal
  • Childhood onset dystonia, chorea or related movement disorder

    BIALLELIC, autosomal or pseudoautosomal
  • Hereditary ataxia

    BIALLELIC, autosomal or pseudoautosomal
  • Hereditary ataxia with onset in adulthood

    BIALLELIC, autosomal or pseudoautosomal
  • Hereditary neuropathy or pain disorder

    BIALLELIC, autosomal or pseudoautosomal
  • Likely inborn error of metabolism

    BIALLELIC, autosomal or pseudoautosomal
  • Mitochondrial disorder with complex IV deficiency

    BIALLELIC, autosomal or pseudoautosomal
  • Mitochondrial disorders

    BIALLELIC, autosomal or pseudoautosomal

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Disease associations (Open Targets)

  • mitochondrial complex IV deficiency, nuclear type 11

    0.73
  • Isolated cytochrome C oxidase deficiency

    0.68
  • leigh syndrome due to mitochondrial complex iv deficiency

    0.60
  • hereditary disease

    0.41
  • mitochondrial disease

    0.40
  • inborn mitochondrial metabolism disorder

    0.37
  • Parkinson disease

    0.19
  • trauma complication

    0.19
  • cataract

    0.19
  • alcohol drinking

    0.18

Score is the Open Targets composite evidence score (0-1). Higher = stronger gene-disease association.

Protein function (UniProt)

Cytochrome c oxidase assembly protein COX20, mitochondrial

Essential for the assembly of the mitochondrial respiratory chain complex IV (CIV), also known as cytochrome c oxidase (PubMed:23125284). Acts as a chaperone in the early steps of cytochrome c oxidase subunit II (MT-CO2/COX2) maturation, stabilizing the newly synthesized protein and presenting it to metallochaperones SCO1/2 which in turn facilitates the incorporation of the mature MT-CO2/COX2 into the assembling CIV holoenzyme (PubMed:24403053)

Data sources: HGNC (CC BY 4.0), AlphaFold (CC BY 4.0, Jumper et al. Nature 2021), Genomics England PanelApp (CC BY 4.0), ClinGen, Open Targets (CC0), UniProt.

Not for sole clinical decision-making. Always verify against primary sources.