Spastic Paraplegia 4, Autosomal Dominant, also known as spg4, is related to paraplegia and spastic paraplegia 3, autosomal dominant, and has symptoms including low back pain, urgency of micturition and agitation. An important gene associated with Spastic Paraplegia 4, Autosomal Dominant is SPAST (Spastin), and among its related pathways/superpathways is Platelet Aggregation Inhibitor Pathway, Pharmacodynamics. Affiliated tissues include brain and spinal cord, and related phenotypes are spasticity and babinski sign