growth/size/body
• at P12, body weights of mutants are slightly less than wild-type; from 3 weeks onward, body weights are significantly lower
|
behavior/neurological
• ataxia manifests by postnatal day 12 and worsens after that point; hindlimbs are more affected than hindlimbs
• hesitant, joggling gait is displayed
|
• mice display faulty coordination of the hind legs
|
• mice have difficulty maintaining normal posture; writhing of the trunk during walking is observed
|
nervous system
• at P21, cerebellum weights of homozygotes are significantly lower than wild-type; ratio of cerebellar to brain weight is lower in mutants from 3 weeks to 5 months of age
|
cellular
• cerebellar cortex of mutants displays many dead cells from P12 to 5 months of age
|