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POLR3H

Chr 22q13.2

RNA polymerase III subunit H

Aliases:
RPC8, KIAA1665, C25
MANE:
ENST00000355209.9

Annotations refreshed 9 hours ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Moderate Evidence (Amber)

  • Primary ovarian insufficiency

    BIALLELIC, autosomal or pseudoautosomal

Disease associations (Open Targets)

  • infantile cerebellar-retinal degeneration

    0.53
  • optic atrophy 9

    0.51
  • optic atrophy

    0.47
  • hereditary disease

    0.41
  • neurodegenerative disease

    0.40
  • 46,XX gonadal dysgenesis

    0.39
  • 46 XX gonadal dysgenesis

    0.37
  • iron metabolism disease

    0.26
  • primary ovarian failure

    0.20
  • Premature ovarian insufficiency

    0.18

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

Protein function (UniProt)

DNA-directed RNA polymerase III subunit RPC8

DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates (PubMed:20413673, PubMed:33558764, PubMed:34675218). Specific peripheric component of RNA polymerase III (Pol III) which synthesizes small non-coding RNAs including 5S rRNA, snRNAs, tRNAs and miRNAs from at least 500 distinct genomic loci. With CRCP/RPC9 forms a mobile stalk that protrudes from Pol III core and functions primarily in transcription initiation (By similarity) (PubMed:33558764, PubMed:34675218). Pol III plays a key role in sensing and limiting infection by intracellular bacteria and DNA viruses. Acts as nuclear and cytosolic DNA sensor involved in innate immune response. Can sense non-self dsDNA that serves as template for transcription into dsRNA. The non-self RNA polymerase III transcripts, such as Epstein-Barr virus-encoded RNAs (EBERs) induce type I interferon and NF-kappa-B through the RIG-I pathway (PubMed:19609254, PubMed:19631370)

Curated MONDO disease pages that list POLR3H 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.