Mutations in TRIC (tricellulin) and ILDR1 (angulin-2/ILDR1) have been associated with autosomal recessive nonsyndromic deafness DFNB49 [81,82,83] and DFNB42 (MIM 609646) [84,85], respectively. Here, ILDR1 is linked to hearing loss, autosomal recessive.