| Phenotype details |
absent tendon reflexes, moderate muscle weakness of lower limbs, normal sensibility; no sensorineural hearing loss; 3-4y-limb and gait ataxia, horizontal nystagmus, dysarthria, dysmetria upper and lower limbs; 15m-delayed walking; action and intention tremor ; Cerebellar atrophy; Extensor plantar response at lower limbs; no Retinitis Pigmentosa; no cataract |