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Reviewed July 2010
What is the official name of the RNASEH2A gene?
The official name of this gene is “ribonuclease H2 subunit A.”
RNASEH2A is the gene's official symbol. The RNASEH2A gene is also known by other names, listed below.
Read more about gene names and symbols on the About page.
What is the normal function of the RNASEH2A gene?
The RNASEH2A gene provides instructions for making one part (subunit) of a group of proteins called the RNase H2 complex. This complex is a ribonuclease, which means it is an enzyme that helps break down RNA, a chemical cousin of DNA. In particular, the RNase H2 complex helps break down molecules in which one strand of RNA is combined with one strand of DNA (RNA-DNA hybrids). These hybrids are formed during DNA copying (replication) and are found in all cells.
The RNase H2 complex is involved in DNA replication, error repair, and other cellular functions. Researchers believe that these additional functions may include helping to prevent inappropriate immune system activation.
How are changes in the RNASEH2A gene related to health conditions?
Where is the RNASEH2A gene located?
Cytogenetic Location: 19p13.2
Molecular Location on chromosome 19: base pairs 12,802,054 to 12,813,648
(Homo sapiens Annotation Release 107, GRCh38.p2) (
The RNASEH2A gene is located on the short (p) arm of chromosome 19 at position 13.2.
More precisely, the RNASEH2A gene is located from base pair 12,802,054 to base pair 12,813,648 on chromosome 19.
See How do geneticists indicate the location of a gene? in the Handbook.
Where can I find additional information about RNASEH2A?
You and your healthcare professional may find the following resources about RNASEH2A helpful.
You may also be interested in these resources, which are designed for genetics professionals and researchers.
What other names do people use for the RNASEH2A gene or gene products?
See How are genetic conditions and genes named? in the Handbook.
Where can I find general information about genes?
The Handbook provides basic information about genetics in clear language.
These links provide additional genetics resources that may be useful.
What glossary definitions help with understanding RNASEH2A?
You may find definitions for these and many other terms in the Genetics Home Reference Glossary.
See also Understanding Medical Terminology.
References (6 links)
The resources on this site should not be used as a substitute for professional medical care or advice. Users seeking information about a personal genetic disease, syndrome, or condition should consult with a qualified healthcare professional. See How can I find a genetics professional in my area? in the Handbook.