aprataxin
Last updated 18 Aug 2020
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The APTX gene provides instructions for making a protein called aprataxin that is involved in the repair of DNA damage in cells. Aprataxin is located in the nucleus of cells and is produced in various tissues, including the brain, spinal cord, and muscles. Different parts of the aprataxin protein allow the protein to interact with other DNA repair proteins to make repairs. At the site of the damage, aprataxin modifies the broken ends of the DNA strands so they can be joined back together correctly.
Normal function
The APTX gene provides instructions for making a protein called aprataxin that is involved in the repair of DNA damage in cells. Aprataxin is located in the nucleus of cells and is produced in various tissues, including the brain, spinal cord, and muscles. Different parts of the aprataxin protein allow the protein to interact with other DNA repair proteins to make repairs. At the site of the damage, aprataxin modifies the broken ends of the DNA strands so they can be joined back together correctly.
Conditions referring to this gene or chromosome
Other names
AOA
AOA1
APTX_HUMAN
ataxia 1, early onset with hypoalbuminemia
AXA1
EAOH
EOAHA
FHA-HIT
Further reading and references
- aprataxin; MedlinePlus, National Library of Medicine.
- Ahel I, Rass U, El-Khamisy SF, Katyal S, Clements PM, McKinnon PJ, Caldecott KW, West SC. The neurodegenerative disease protein aprataxin resolves abortive DNA ligation intermediates. Nature. 2006 Oct 12;443(7112):713-6. doi: 10.1038/nature05164. Epub 2006 Sep 10.
- Hirano M, Asai H, Kiriyama T, Furiya Y, Iwamoto T, Nishiwaki T, Yamamoto A, Mori T, Ueno S. Short half-lives of ataxia-associated aprataxin proteins in neuronal cells. Neurosci Lett. 2007 May 29;419(2):184-7. doi: 10.1016/j.neulet.2007.04.044. Epub 2007 Apr 25.
- Le Ber I, Moreira MC, Rivaud-Pechoux S, Chamayou C, Ochsner F, Kuntzer T, Tardieu M, Said G, Habert MO, Demarquay G, Tannier C, Beis JM, Brice A, Koenig M, Durr A. Cerebellar ataxia with oculomotor apraxia type 1: clinical and genetic studies. Brain. 2003 Dec;126(Pt 12):2761-72. doi: 10.1093/brain/awg283. Epub 2003 Sep 23.
- Rass U, Ahel I, West SC. Actions of aprataxin in multiple DNA repair pathways. J Biol Chem. 2007 Mar 30;282(13):9469-9474. doi: 10.1074/jbc.M611489200. Epub 2007 Feb 2.
- Tada M, Yokoseki A, Sato T, Makifuchi T, Onodera O. Early-onset ataxia with ocular motor apraxia and hypoalbuminemia/ataxia with oculomotor apraxia 1. Adv Exp Med Biol. 2010;685:21-33. doi: 10.1007/978-1-4419-6448-9_3.
- Takahashi T, Tada M, Igarashi S, Koyama A, Date H, Yokoseki A, Shiga A, Yoshida Y, Tsuji S, Nishizawa M, Onodera O. Aprataxin, causative gene product for EAOH/AOA1, repairs DNA single-strand breaks with damaged 3'-phosphate and 3'-phosphoglycolate ends. Nucleic Acids Res. 2007;35(11):3797-809. doi: 10.1093/nar/gkm158. Epub 2007 May 22.
- Tumbale P, Williams JS, Schellenberg MJ, Kunkel TA, Williams RS. Aprataxin resolves adenylated RNA-DNA junctions to maintain genome integrity. Nature. 2014 Feb 6;506(7486):111-5. doi: 10.1038/nature12824. Epub 2013 Dec 22.
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