Spastic Ataxia 4 is related to spastic ataxia 4, autosomal recessive and bile acid synthesis defect, congenital, 1, and has symptoms including paraparesis, spastic An important gene associated with Spastic Ataxia 4 is MTPAP (Mitochondrial Poly(A) Polymerase), and among its related pathways/superpathways is Translation factors. Related phenotype is Increased shRNA abundance (Z-score > 2).