RNASEH2A

Protein-coding gene in the species Homo sapiens From Wikipedia, the free encyclopedia

Ribonuclease H2 subunit A, also known as RNase H2 subunit A, is an enzyme that in humans is encoded by the RNASEH2A gene.[5]

PDBOrtholog search: PDBe RCSB
AliasesRNASEH2A, AGS4, JUNB, RNASEHI, RNHIA, RNHL, ribonuclease H2 subunit A, THSD8
Quick facts Available structures, PDB ...
RNASEH2A
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesRNASEH2A, AGS4, JUNB, RNASEHI, RNHIA, RNHL, ribonuclease H2 subunit A, THSD8
External IDsOMIM: 606034; MGI: 1916974; HomoloGene: 4664; GeneCards: RNASEH2A; OMA:RNASEH2A - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_006397

NM_027187
NM_001364370

RefSeq (protein)

NP_006388

NP_081463
NP_001351299

Location (UCSC)Chr 19: 12.81 – 12.81 MbChr 8: 85.68 – 85.7 Mb
PubMed search[3][4]
Wikidata
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Function

The protein encoded by this gene is a component of the heterotrimeric type II ribonuclease H enzyme (RNaseH2). The other two subunits are the non-catalytic RNASEH2B and RNASEH2C. RNaseH2 is the major source of ribonuclease H activity in mammalian cells and endonucleolytically cleaves ribonucleotides. It is predicted to remove Okazaki fragment RNA primers during lagging strand DNA synthesis and to excise single ribonucleotides from DNA-DNA duplexes.[5]

Clinical significance

Mutations in this gene cause Aicardi–Goutières syndrome (AGS), an autosomal recessive neurological disorder characterized by progressive microcephaly and psychomotor retardation, intracranial calcifications, elevated levels of interferon-alpha and white blood cells in the cerebrospinal fluid.[5]

References

Further reading

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