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PEX19

Chr 1q23.2

peroxisomal biogenesis factor 19

Aliases:
HK33, D1S2223E, PMP1, PMPI, PXMP1
MANE:
ENST00000368072.10

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Adult onset leukodystrophy

    BIALLELIC, autosomal or pseudoautosomal
  • Arthrogryposis

    BIALLELIC, autosomal or pseudoautosomal
  • Bilateral congenital or childhood onset cataracts

    BIALLELIC, autosomal or pseudoautosomal
  • DDG2P

    BIALLELIC, autosomal or pseudoautosomal
  • Fetal anomalies

    BIALLELIC, autosomal or pseudoautosomal
  • Fetal hydrops

    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)

  • Zellweger syndrome

    0.80
  • peroxisome biogenesis disorder 12A (Zellweger)

    0.76
  • peroxisome biogenesis disorder

    0.68
  • peroxisomal disease

    0.66
  • Peroxisome biogenesis disorder-Zellweger syndrome spectrum

    0.66
  • neurodegenerative disease

    0.50
  • Zellweger spectrum disorders

    0.45
  • hereditary disease

    0.41
  • peroxisome biogenesis disorder due to PEX19 defect

    0.37
  • dengue disease

    0.37

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

Protein function (UniProt)

Peroxisomal biogenesis factor 19

Necessary for early peroxisomal biogenesis. Acts both as a cytosolic chaperone and as an import receptor for peroxisomal membrane proteins (PMPs). Binds and stabilizes newly synthesized PMPs in the cytoplasm by interacting with their hydrophobic membrane-spanning domains, and targets them to the peroxisome membrane by binding to the integral membrane protein PEX3. Excludes CDKN2A from the nucleus and prevents its interaction with MDM2, which results in active degradation of TP53

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.