Skip navigation

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

URL of this page:

ARMS2 gene

age-related maculopathy susceptibility 2

Normal Function

The ARMS2 gene provides instructions for making a protein whose function is unknown. Studies suggest that the ARMS2 protein is found primarily in the placenta and in the specialized light-sensing tissue in the back of the eye (the retina). However, it is unclear what role, if any, the protein plays in early development or normal vision.

Health Conditions Related to Genetic Changes

Age-related macular degeneration

The ARMS2 gene is located on the long (q) arm of chromosome 10 in a region known as 10q26. This region has been strongly associated with the risk of developing age-related macular degeneration, a common cause of vision loss in older adults. Researchers have identified several variations (polymorphisms) in and near the ARMS2 gene that may explain the association between the 10q26 region and age-related macular degeneration. The best-studied of these variations, known as rs10490924, alters a single protein building block (amino acid) in the ARMS2 protein. Another common variation, a complex change that deletes a segment of the ARMS2 gene and inserts new genetic material, may also contribute to disease risk.

It is unclear how polymorphisms in the ARMS2 gene might be related to age-related macular degeneration. In the 10q26 region, the ARMS2 gene is located next to a gene called HTRA1; changes in this gene have also been studied as a risk factor for the disease. Because the two genes are so close together, it is difficult to tell whether changes in one gene or the other, or possibly changes in both genes, account for the increased disease risk. Age-related macular degeneration is a complex condition that likely results from a combination of multiple genetic and environmental factors.

More About This Health Condition

Other Names for This Gene

  • age-related maculopathy susceptibility protein 2
  • ARMD8
  • LOC387715

Additional Information & Resources

Tests Listed in the Genetic Testing Registry

Scientific Articles on PubMed

Catalog of Genes and Diseases from OMIM

Gene and Variant Databases


  • Friedrich U, Myers CA, Fritsche LG, Milenkovich A, Wolf A, Corbo JC, Weber BH. Risk- and non-risk-associated variants at the 10q26 AMD locus influence ARMS2 mRNA expression but exclude pathogenic effects due to protein deficiency. Hum Mol Genet. 2011 Apr 1;20(7):1387-99. doi: 10.1093/hmg/ddr020. Epub 2011 Jan 20. Citation on PubMed or Free article on PubMed Central
  • Fritsche LG, Loenhardt T, Janssen A, Fisher SA, Rivera A, Keilhauer CN, Weber BH. Age-related macular degeneration is associated with an unstable ARMS2 (LOC387715) mRNA. Nat Genet. 2008 Jul;40(7):892-6. doi: 10.1038/ng.170. Epub 2008 May 30. Citation on PubMed
  • Kanda A, Chen W, Othman M, Branham KE, Brooks M, Khanna R, He S, Lyons R, Abecasis GR, Swaroop A. A variant of mitochondrial protein LOC387715/ARMS2, not HTRA1, is strongly associated with age-related macular degeneration. Proc Natl Acad Sci U S A. 2007 Oct 9;104(41):16227-32. doi: 10.1073/pnas.0703933104. Epub 2007 Sep 20. Citation on PubMed or Free article on PubMed Central
  • Kanda A, Stambolian D, Chen W, Curcio CA, Abecasis GR, Swaroop A. Age-related macular degeneration-associated variants at chromosome 10q26 do not significantly alter ARMS2 and HTRA1 transcript levels in the human retina. Mol Vis. 2010 Jul 15;16:1317-23. Citation on PubMed or Free article on PubMed Central
  • Rivera A, Fisher SA, Fritsche LG, Keilhauer CN, Lichtner P, Meitinger T, Weber BH. Hypothetical LOC387715 is a second major susceptibility gene for age-related macular degeneration, contributing independently of complement factor H to disease risk. Hum Mol Genet. 2005 Nov 1;14(21):3227-36. doi: 10.1093/hmg/ddi353. Epub 2005 Sep 20. Citation on PubMed
  • Tong Y, Liao J, Zhang Y, Zhou J, Zhang H, Mao M. LOC387715/HTRA1 gene polymorphisms and susceptibility to age-related macular degeneration: A HuGE review and meta-analysis. Mol Vis. 2010 Oct 5;16:1958-81. Citation on PubMed or Free article on PubMed Central
  • Yang Z, Tong Z, Chen Y, Zeng J, Lu F, Sun X, Zhao C, Wang K, Davey L, Chen H, London N, Muramatsu D, Salasar F, Carmona R, Kasuga D, Wang X, Bedell M, Dixie M, Zhao P, Yang R, Gibbs D, Liu X, Li Y, Li C, Li Y, Campochiaro B, Constantine R, Zack DJ, Campochiaro P, Fu Y, Li DY, Katsanis N, Zhang K. Genetic and functional dissection of HTRA1 and LOC387715 in age-related macular degeneration. PLoS Genet. 2010 Feb 5;6(2):e1000836. doi: 10.1371/journal.pgen.1000836. Citation on PubMed or Free article on PubMed Central

The information on this site should not be used as a substitute for professional medical care or advice. Contact a health care provider if you have questions about your health.