TMPRSS3 and Usher syndrome: Aside from DFNB9, current efforts target Usher Syndrome Type 3A (defects of CLRN1 coding for clarin‐1), DFNB8 (defects of TMRPSS3 coding for Transmembrane protease serine 3), and DFNB16 (defects of STRC coding for stereocilin).