Auditory Neuropathy, Autosomal Dominant 2, also known as auna2, is related to contractures, pterygia, and spondylocarpotarsal fusion syndrome 1a and auditory neuropathy, autosomal dominant 1. An important gene associated with Auditory Neuropathy, Autosomal Dominant 2 is ATP11A (ATPase Phospholipid Transporting 11A).