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COX6A1

Chr 12q24.31

cytochrome c oxidase subunit 6A1

Aliases:
COX6AL
MANE:
ENST00000229379.3

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Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Hereditary neuropathy

    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
  • Possible mitochondrial disorder - nuclear genes

    BIALLELIC, autosomal or pseudoautosomal
  • Undiagnosed metabolic disorders

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

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Disease associations (Open Targets)

  • Charcot-Marie-Tooth disease recessive intermediate D

    0.72
  • autosomal recessive intermediate Charcot-Marie-Tooth disease

    0.57
  • neurodegenerative disease

    0.46
  • mitochondrial disease

    0.37
  • inborn mitochondrial metabolism disorder

    0.37
  • peripheral neuropathy

    0.26
  • genetic developmental and epileptic encephalopathy

    0.08
  • developmental and/or epileptic encephalopathy with spike-wave activation in sleep

    0.08
  • amyotrophic lateral sclerosis

    0.08
  • undetermined early-onset epileptic encephalopathy

    0.07

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

Protein function (UniProt)

Cytochrome c oxidase subunit 6A1, mitochondrial

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 unsing 4 electrons from cytochrome c in the IMS and 4 protons from the mitochondrial matrix

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.