Deafness, Autosomal Dominant 27, also known as dfna27, is related to deafness, autosomal recessive 2 and contractures, pterygia, and spondylocarpotarsal fusion syndrome 1a. An important gene associated with Deafness, Autosomal Dominant 27 is REST (RE1 Silencing Transcription Factor). Related phenotypes are sensorineural hearing impairment and nervous system