Deafness, Autosomal Recessive 26, also known as dfnb26, is related to deafness, autosomal recessive 26, modifier of and deafness, autosomal recessive 2. An important gene associated with Deafness, Autosomal Recessive 26 is GAB1 (GRB2 Associated Binding Protein 1). Affiliated tissues include brain, and related phenotype is sensorineural hearing impairment.