Spastic Paraplegia 30, Autosomal Dominant, also known as hereditary spastic paraplegia 30, is related to spasticity and spastic paraparesis. An important gene associated with Spastic Paraplegia 30, Autosomal Dominant is KIF1A (Kinesin Family Member 1A). Affiliated tissues include brain and eye, and related phenotypes are babinski sign and unsteady gait