Deafness, Autosomal Dominant 51, also known as autosomal dominant nonsyndromic deafness 51, is related to nonsyndromic hearing loss and deafness, autosomal dominant 50. An important gene associated with Deafness, Autosomal Dominant 51 is TJP2 (Tight Junction Protein 2), and among its related pathways/superpathways is Cell adhesion_Endothelial cell contacts by junctional mechanisms. Related phenotypes are hearing impairment and hearing/vestibular/ear