PhenomeGene — Human Disease Gene Website SeriesNT5C2

Clinical Characteristics

SPG45 presents with progressive lower limb spasticity, abnormal gait, increased deep tendon reflexes, and extensor plantar responses, typically starting in infancy or early childhood. It is a complicated form of hereditary spastic paraplegia, often involving intellectual disability, and may include complications such as foot deformities (like clubfoot), muscle wasting (amyotrophy), contractures, and optic atrophy.