CDH23 (Cadherin-Related 23): CDH23 is a gene that encodes a protein belonging to the cadherin superfamily, known for their role in cell-cell adhesion. CDH23 is essential for the proper structure and function of hair cells in the inner ear, which are responsible for hearing and balance. Mutations in CDH23 are linked to Usher syndrome and non-syndromic hearing loss, emphasizing its key role in sensory function. Research on CDH23 aims to better understand hearing mechanisms and develop treatments for related hearing impairments.