EDAR associated via death domain
Last updated 1 Feb 2023
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The EDARADD gene provides instructions for making a protein called the EDAR-associated via death domain (EDARADD) protein. This protein is part of a signaling pathway that plays an important role in development before birth. Specifically, it is critical for interactions between two embryonic cell layers called the ectoderm and the mesoderm. In the early embryo, these cell layers form the basis for many of the body's organs and tissues. Ectoderm-mesoderm interactions are essential for the formation of several structures that arise from the ectoderm, including the skin, hair, nails, teeth, and sweat glands.
Normal function
The EDARADD gene provides instructions for making a protein called the EDAR-associated via death domain (EDARADD) protein. This protein is part of a signaling pathway that plays an important role in development before birth. Specifically, it is critical for interactions between two embryonic cell layers called the ectoderm and the mesoderm. In the early embryo, these cell layers form the basis for many of the body's organs and tissues. Ectoderm-mesoderm interactions are essential for the formation of several structures that arise from the ectoderm, including the skin, hair, nails, teeth, and sweat glands.
The EDARADD protein interacts with another protein, called the ectodysplasin A receptor, which is produced from the EDAR gene. This interaction occurs at a region called the death domain that is present in both proteins. The EDARADD protein acts as an adapter, which means it assists the ectodysplasin A receptor in triggering chemical signals within cells. These signals affect cell activities such as division, growth, and maturation. Starting before birth, this signaling pathway controls the formation of ectodermal structures such as hair follicles, sweat glands, and teeth.
Conditions referring to this gene or chromosome
Other names
ectodysplasia A receptor associated death domain
ectodysplasin A receptor associated adapter protein
EDAD_HUMAN
EDAR-associated death domain
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Further reading and references
- EDAR associated via death domain; MedlinePlus, National Library of Medicine.
- Chassaing N, Cluzeau C, Bal E, Guigue P, Vincent MC, Viot G, Ginisty D, Munnich A, Smahi A, Calvas P. Mutations in EDARADD account for a small proportion of hypohidrotic ectodermal dysplasia cases. Br J Dermatol. 2010 May;162(5):1044-8. doi: 10.1111/j.1365-2133.2010.09670.x. Epub 2010 Mar 5.
- Chaudhary AK, Girisha KM, Bashyam MD. A novel EDARADD 5'-splice site mutation resulting in activation of two alternate cryptic 5'-splice sites causes autosomal recessive Hypohidrotic Ectodermal Dysplasia. Am J Med Genet A. 2016 Jun;170(6):1639-41. doi: 10.1002/ajmg.a.37607. Epub 2016 Mar 15. No abstract available.
- Cluzeau C, Hadj-Rabia S, Jambou M, Mansour S, Guigue P, Masmoudi S, Bal E, Chassaing N, Vincent MC, Viot G, Clauss F, Maniere MC, Toupenay S, Le Merrer M, Lyonnet S, Cormier-Daire V, Amiel J, Faivre L, de Prost Y, Munnich A, Bonnefont JP, Bodemer C, Smahi A. Only four genes (EDA1, EDAR, EDARADD, and WNT10A) account for 90% of hypohidrotic/anhidrotic ectodermal dysplasia cases. Hum Mutat. 2011 Jan;32(1):70-2. doi: 10.1002/humu.21384.
- Headon DJ, Emmal SA, Ferguson BM, Tucker AS, Justice MJ, Sharpe PT, Zonana J, Overbeek PA. Gene defect in ectodermal dysplasia implicates a death domain adapter in development. Nature. 2001 Dec 20-27;414(6866):913-6. doi: 10.1038/414913a.
- Wohlfart S, Hammersen J, Schneider H. Mutational spectrum in 101 patients with hypohidrotic ectodermal dysplasia and breakpoint mapping in independent cases of rare genomic rearrangements. J Hum Genet. 2016 Oct;61(10):891-897. doi: 10.1038/jhg.2016.75. Epub 2016 Jun 16.
- Wohlfart S, Soder S, Smahi A, Schneider H. A novel missense mutation in the gene EDARADD associated with an unusual phenotype of hypohidrotic ectodermal dysplasia. Am J Med Genet A. 2016 Jan;170A(1):249-53. doi: 10.1002/ajmg.a.37412. Epub 2015 Oct 5.
- Wright JT, Grange DK, Fete M. Hypohidrotic Ectodermal Dysplasia. 2003 Apr 28 [updated 2025 Mar 20]. In: Adam MP, Bick S, Mirzaa GM, Wallace SE, Amemiya A, editors. GeneReviews(R) [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2026. Available from http://www.ncbi.nlm.nih.gov/books/NBK1112/
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