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BCS1L

Chr 2q35

BCS1 ubiquinol-cytochrome c reductase complex chaperone

Aliases:
Hs.6719, BCS, h-BCS, BJS
MANE:
ENST00000359273.8

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Childhood onset dystonia, chorea or related movement disorder

    BIALLELIC, autosomal or pseudoautosomal
  • Cholestasis

    BIALLELIC, autosomal or pseudoautosomal
  • DDG2P

    BIALLELIC, autosomal or pseudoautosomal
  • Early onset or syndromic epilepsy

    BIALLELIC, autosomal or pseudoautosomal
  • Fetal anomalies

    BIALLELIC, autosomal or pseudoautosomal
  • Inherited white matter disorders

    BIALLELIC, autosomal or pseudoautosomal
  • Intellectual disability

    BIALLELIC, autosomal or pseudoautosomal
  • Likely inborn error of metabolism

    BIALLELIC, autosomal or pseudoautosomal

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Disease associations (Open Targets)

  • Bjornstad syndrome

    0.82
  • Björnstad syndrome

    0.82
  • GRACILE syndrome

    0.82
  • Isolated CoQ-cytochrome C reductase deficiency

    0.79
  • mitochondrial complex III deficiency nuclear type 1

    0.72
  • Leigh syndrome

    0.69
  • Renal tubulopathy - encephalopathy - liver failure

    0.67
  • mitochondrial complex III deficiency

    0.64
  • inborn mitochondrial metabolism disorder

    0.60
  • mitochondrial disease

    0.60

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

Protein function (UniProt)

Mitochondrial chaperone BCS1

Chaperone necessary for the incorporation of Rieske iron-sulfur protein UQCRFS1 into the mitochondrial respiratory chain complex III (PubMed:11528392, PubMed:9878253). Plays an important role in the maintenance of mitochondrial tubular networks, respiratory chain assembly and formation of the LETM1 complex (PubMed:18628306)

Curated MONDO disease pages that list BCS1L 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.