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DKC1

Chr Xq28

dyskerin pseudouridine synthase 1

Aliases:
XAP101, dyskerin, NAP57, NOLA4, Cbf5
MANE:
ENST00000369550.10

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Ataxia and cerebellar anomalies - narrow panel

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Cerebellar hypoplasia

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • COVID-19 research

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Cytopenia - NOT Fanconi anaemia

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Cytopenias and congenital anaemias

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • DDG2P

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Familial pulmonary fibrosis

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Fetal anomalies

    X-LINKED: hemizygous mutation in males, biallelic mutations in females

+13 more panels — install the extension to see the full list inline on any page.

Disease associations (Open Targets)

  • dyskeratosis congenita, X-linked

    0.85
  • dyskeratosis congenita

    0.81
  • Hoyeraal-Hreidarsson syndrome

    0.72
  • neurodegenerative disease

    0.52
  • DKC1-related disorder

    0.49
  • acute myeloid leukemia with minimal differentiation

    0.46
  • cataracts, hearing impairment, nephrotic syndrome, and enterocolitis 1

    0.46
  • isolated cerebellar hypoplasia/agenesis

    0.26
  • pulmonary fibrosis

    0.15
  • immunodeficiency disease

    0.12

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

Protein function (UniProt)

H/ACA ribonucleoprotein complex subunit DKC1

Catalytic subunit of H/ACA small nucleolar ribonucleoprotein (H/ACA snoRNP) complex, which catalyzes pseudouridylation of rRNA (PubMed:25219674, PubMed:32554502). This involves the isomerization of uridine such that the ribose is subsequently attached to C5, instead of the normal N1 (PubMed:25219674). Each rRNA can contain up to 100 pseudouridine ('psi') residues, which may serve to stabilize the conformation of rRNAs. Required for ribosome biogenesis and telomere maintenance (PubMed:19179534, PubMed:25219674). Also required for correct processing or intranuclear trafficking of TERC, the RNA component of the telomerase reverse transcriptase (TERT) holoenzyme (PubMed:19179534)

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.