Mondo Description Any hereditary spastic paraplegia in which the cause of the disease is a mutation in the ATL1 gene.

Uniprot Description A form of spastic paraplegia, a neurodegenerative disorder characterized by a slow, gradual, progressive weakness and spasticity of the lower limbs. Rate of progression and the severity of symptoms are quite variable. Initial symptoms may include difficulty with balance, weakness and stiffness in the legs, muscle spasms, and dragging the toes when walking. In some forms of the disorder, bladder symptoms (such as incontinence) may appear, or the weakness and stiffness may spread to other parts of the body.

Disease Ontology Description A hereditary spastic paraplegia that is characterized by lower limb weakness and spasticity that is generally non-progressive or extremely slow and has_material_basis_in mutation in the ATL1 gene on chromosome 14q22.