Deafness, Autosomal Recessive 1A Deafness, Autosomal Recessive 1A C2673759 Cellosaurus Disease or Syndrome Deafness, Autosomal Recessive 1A DFNB1A An autosomal recessive disorder caused by mutations in the GJB2 gene, encoding gap junction beta-2 protein. The condition is characterized by profound sensorineural hearing loss and may be associated with vestibular dysfunction. C129022 Cellosaurus Disease Terminology Deafness due to Connexin 26 Gene Anomaly