Spastic Paraplegia 45, Autosomal Recessive, also known as hereditary spastic paraplegia 45, is related to spastic paraplegia 20, autosomal recessive and paraplegia. An important gene associated with Spastic Paraplegia 45, Autosomal Recessive is NT5C2 (5'-Nucleotidase, Cytosolic II). Affiliated tissues include skeletal muscle and brain, and related phenotypes are intellectual disability and flexion contracture of toe