Diplopia, Exotropia, Generalized hyperpigmentation, Generalized hypotonia, Global developmental delay, Hyperlipidemia, Hypopigmentation of hair, Hypopigmentation of the skin, Hypotonia, Intellectual disability, Iris hypopigmentation, Large clumps of pigment irregularly distributed along hair shaft, Macular dystrophy, Melanin pigment aggregation in hair shafts, Muscle stiffness, Myopia, Nystagmus, Optic atrophy, Partial albinism, Premature graying of hair, Recurrent respiratory infections, Retinopathy, Rigidity, Seizure, Silver-gray hair, Spasticity, Specific learning disability, Strabismus, Subcortical cerebral atrophy, Tremor, White eyelashes, White hair

abnormal limb posture, abnormal locomotor coordination, abnormal melanocyte morphology, abnormal melanosome morphology, abnormal motor capabilities/coordination/movement, abnormal tail pigmentation, behavior/neurological phenotype, circling, clonic seizures, decreased body size, diluted coat color, hematopoietic system phenotype, immune system phenotype, impaired balance, impaired limb coordination, impaired righting response, lethality at weaning, complete penetrance, nervous system phenotype, no abnormal phenotype detected, phenotypic reversion, postnatal lethality, postnatal lethality, complete penetrance, postnatal lethality, incomplete penetrance, premature death, preweaning lethality, incomplete penetrance, reduced long term depression, reversion by viral sequence excision, slow postnatal weight gain