Deafness, Autosomal Recessive 109, also known as dfnb109, is related to tarp syndrome and treacher collins syndrome 1. An important gene associated with Deafness, Autosomal Recessive 109 is ESRP1 (Epithelial Splicing Regulatory Protein 1), and among its related pathways/superpathways are Formation of HIV elongation complex in the absence of HIV Tat and Signaling by FGFR2. Affiliated tissues include brain, and related phenotypes are congenital sensorineural hearing impairment and absent vestibular function