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Reviewed January 2008
What is the official name of the ASPA gene?
The official name of this gene is “aspartoacylase.”
ASPA is the gene's official symbol. The ASPA 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 ASPA gene?
The ASPA gene provides instructions for making an enzyme called aspartoacylase. In the brain, this enzyme breaks down a compound called N-acetyl-L-aspartic acid (NAA) into aspartic acid (an amino acid that is a building block of many proteins) and another molecule called acetic acid.
The cycle of production and breakdown of NAA appears to be critical for maintaining the brain's white matter, which consists of nerve fibers covered by myelin. Myelin is the fatty substance that insulates and protects nerves. Although the precise function of NAA is unknown, it is probably essential for making certain fats (lipids) that are used to produce myelin. Researchers believe that NAA may also play a role in transporting molecules of water out of nerve cells.
How are changes in the ASPA gene related to health conditions?
Where is the ASPA gene located?
Cytogenetic Location: 17p13.3
Molecular Location on chromosome 17: base pairs 3,377,403 to 3,402,699
The ASPA gene is located on the short (p) arm of chromosome 17 at position 13.3.
More precisely, the ASPA gene is located from base pair 3,377,403 to base pair 3,402,699 on chromosome 17.
See How do geneticists indicate the location of a gene? in the Handbook.
Where can I find additional information about ASPA?
You and your healthcare professional may find the following resources about ASPA 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 ASPA 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 ASPA?
You may find definitions for these and many other terms in the Genetics Home Reference Glossary.
See also Understanding Medical Terminology.
References (9 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.