Ectodysplasin-A receptor-associated adapter protein (EDARADD)

Ectodysplasin-A receptor-associated adapter protein (EDARADD) is an intracellular signaling adaptor containing a death domain, which couples the ectodysplasin-A receptor (EDAR) to downstream pathways, notably the NF-κB transcription factor cascade[1][3][4]. EDARADD is essential for interpreting signals between embryonic ectoderm and mesoderm, thus regulating development and morphogenesis of structures such as hair follicles, teeth, skin, and sweat glands[1][3]. Mutations in EDARADD disrupt protein-protein interactions necessary for normal signaling, causing various forms of ectodermal dysplasia, primarily hypohidrotic ectodermal dysplasia, characterized by defective hair, teeth, and sweat gland formation[1][4]. EDARADD interacts directly with EDAR, and recruits effectors like TRAF6 and TAB2, activating the IκB kinase complex and promoting cell-specific gene expression during organogenesis[3][4]. No approved drugs currently target EDARADD; its biological role makes it principally a molecular and diagnostic target for genetic disorders of ectodermal differentiation.

Other names

EDAR associated via death domainEDAR-associated death domain proteinProtein crinkled homologCrinkledEDAD_HUMANECTD11AECTD11BED3EDA3ectodysplasia A receptor associated death domain

no approved drugs target this adapter protein directly; potential mechanism if developed: modulation of EDAR-NF-κB signaling