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FBXL4

Chr 6q16.1-q16.2

F-box and leucine rich repeat protein 4

Aliases:
FBL4, FBL5
MANE:
ENST00000369244.7

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
  • DDG2P

    BIALLELIC, autosomal or pseudoautosomal
  • Early onset or syndromic epilepsy

    BIALLELIC, autosomal or pseudoautosomal
  • Fetal anomalies

    BIALLELIC, autosomal or pseudoautosomal
  • Intellectual disability

    BIALLELIC, autosomal or pseudoautosomal
  • Likely inborn error of metabolism

    BIALLELIC, autosomal or pseudoautosomal
  • Mitochondrial disorders

    BIALLELIC, autosomal or pseudoautosomal
  • Mitochondrial DNA maintenance disorder

    BIALLELIC, autosomal or pseudoautosomal

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Disease associations (Open Targets)

  • mitochondrial DNA depletion syndrome 13

    0.83
  • Mitochondrial DNA depletion syndrome, encephalomyopathic form with variable craniofacial anomalies

    0.77
  • Leigh syndrome

    0.60
  • neurodegenerative disease

    0.56
  • hereditary disease

    0.53
  • mitochondrial DNA depletion syndrome

    0.41
  • alcohol drinking

    0.40
  • mitochondrial disease

    0.40
  • inborn mitochondrial metabolism disorder

    0.37
  • Neurodevelopmental delay

    0.34

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

Protein function (UniProt)

F-box/LRR-repeat protein 4

Substrate-recognition component of the mitochondria-localized SCF-FBXL4 ubiquitin E3 ligase complex that plays a role in the restriction of mitophagy by controlling the degradation of BNIP3 and NIX mitophagy receptors (PubMed:36896912, PubMed:38992176). Rescues also mitochondrial injury through reverting hyperactivation of DRP1-mediated mitochondrial fission (By similarity)

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.