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PKHD1

Chr 6p12.3-p12.2

PKHD1 ciliary IPT domain containing fibrocystin/polyductin

Aliases:
ARPKD, FCYT, FPC
MANE:
ENST00000371117.8

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Cholestasis

    BIALLELIC, autosomal or pseudoautosomal
  • Cystic kidney disease

    BIALLELIC, autosomal or pseudoautosomal
  • DDG2P

    BIALLELIC, autosomal or pseudoautosomal
  • Ductal plate malformation

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Fetal anomalies

    BIALLELIC, autosomal or pseudoautosomal
  • Neonatal cholestasis

    BIALLELIC, autosomal or pseudoautosomal
  • Polycystic liver disease

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Rare multisystem ciliopathy disorders

    BIALLELIC, autosomal or pseudoautosomal

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Disease associations (Open Targets)

  • polycystic kidney disease 4

    0.77
  • autosomal recessive polycystic kidney disease

    0.74
  • Meckel syndrome

    0.58
  • Isolated polycystic liver disease

    0.55
  • cystic kidney disease

    0.54
  • autosomal dominant polycystic liver disease

    0.54
  • hereditary disease

    0.53
  • Caroli disease

    0.51
  • Renal cyst

    0.51
  • Biliary tract abnormality

    0.51

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

Protein function (UniProt)

Fibrocystin

Promotes ciliogenesis in renal epithelial cells and therefore participates in the tubules formation and/ or ensures the maintenance of the architecture of the lumen of the kidney (By similarity). Has an impact on cellular symmetry by ensuring correct bipolar cell division through the regulation of centrosome duplication and mitotic spindle assembly and by maintaining oriented cell division (OCD) during tubular elongation through planar cell polarity (PCP) pathway (PubMed:20554582). During epithelial cell morphogenesis, it also regulates cell-cell and cell-matrix adhesion and participates in cell motility (By similarity). Promotes cell-cell contact through the positive regulation of PTK2 kinase activity leading to either positive regulation of epithelial cell proliferation through the HRAS/RAF1 pathways, or negative regulation of apoptosis through the PDK1/AKT1 pathway (By similarity). May act in collecting-duct and biliary differentiation (PubMed:11919560). May participate in the regulation of the cholangiocytes proliferation and the CCN2 production in an CXCL8-dependent manner (PubMed:30898581)

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.