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COQ8B

Chr 19q13.2

coenzyme Q8B

Aliases:
FLJ12229, COQ8
MANE:
ENST00000324464.8

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Likely inborn error of metabolism

    BIALLELIC, autosomal or pseudoautosomal
  • Mitochondrial disorders

    BIALLELIC, autosomal or pseudoautosomal
  • Possible mitochondrial disorder - nuclear genes

    BIALLELIC, autosomal or pseudoautosomal
  • Proteinuric renal disease

    BIALLELIC, autosomal or pseudoautosomal
  • Retinal disorders

    BIALLELIC, autosomal or pseudoautosomal
  • Undiagnosed metabolic disorders

    BIALLELIC, autosomal or pseudoautosomal
  • Unexplained kidney failure in young people

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

Disease associations (Open Targets)

  • nephrotic syndrome

    0.75
  • familial idiopathic steroid-resistant nephrotic syndrome

    0.64
  • retinitis pigmentosa

    0.52
  • hereditary disease

    0.44
  • mitochondrial disease

    0.40
  • inborn mitochondrial metabolism disorder

    0.37
  • focal segmental glomerulosclerosis

    0.12
  • retinal disorder

    0.12
  • chronic obstructive pulmonary disease

    0.11
  • inflammatory bowel disease

    0.09

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

Protein function (UniProt)

Atypical kinase COQ8B, mitochondrial

Atypical kinase involved in the biosynthesis of coenzyme Q, also named ubiquinone, an essential lipid-soluble electron transporter for aerobic cellular respiration (PubMed:24270420, PubMed:36302899, PubMed:38425362). Its substrate specificity is still unclear: may act as a protein kinase that mediates phosphorylation of COQ3 (PubMed:38425362). According to other reports, acts as a small molecule kinase, possibly a lipid kinase that phosphorylates a prenyl lipid in the ubiquinone biosynthesis pathway, as suggested by its ability to bind coenzyme Q lipid intermediates (By similarity). However, the small molecule kinase activity was not confirmed by another publication (PubMed:38425362). Required for podocyte migration (PubMed:24270420)

Curated MONDO disease pages that list COQ8B among their top associated genes.

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.