MYO6 and deafness: In this study, we have identified a c.820A>T in Myo6 responsible for inner ear defects such as headtossing, circling, and deafness displayed by our ENU mutant mouse strain Turner. Our genetic mapping identified the Tur mutation in the same chromosomal interval as Myo6 and all Tur mutant mice identified by their abnormal behavior carried the c.820A>T mutation.