Novel spontaneous mutant mice with dystonia musculorum (dt) phenotype were isolated.
Nonsense mutation was identified in dystonin on the mutant allele, named Dstdt-23Rbrc.
Neurofilament accumulation was observed in the brain of Dstdt-23Rbrc homozygotes.
Aberrant motor coordination in Dstdt-23Rbrc homozygotes was observed by behavior tests.
Dstdt-23Rbrc homozygotes are candidate model mice for HSAN6.