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Any hereditary spastic paraplegia in which the cause of the disease is a mutation in the ATP13A2 gene.
Features include always present findings: Ataxia, Nystagmus, Mental deterioration, and Overactive reflexes (hyperreflexia) and others; and very common findings: Peripheral axonal neuropathy, Shrinkage of the cerebellum (cerebellar atrophy), and Babinski sign. 28 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 17 | Resting tremor, Peripheral axonal neuropathy, Slowness of movement (bradykinesia) |
ATP13A2 encodes ATPase cation transporting 13A2 (1,180 aa). ATPase which acts as a lysosomal polyamine exporter with high affinity for spermine. Also stimulates cellular uptake of polyamines and protects against polyamine toxicity. Highest expression in Brain Cortex (117.5 TPM) and Brain Cerebellum (116.4 TPM).
Autosomal recessive spastic paraplegia type 78 is associated with mutations in the ATP13A2 gene on chromosome 1.
The ATP13A2 protein participates in ATP13A2 transports cations from cytosol to lysosomal lumen and ATP13A4,5 transport divalent ions from extracellular region to cytosol pathways.
ATP13A2 is classified as a druggable target (Druggable Genome and Transporter categories) with score 0.0.
Genetic testing for ATP13A2 is available. Testing is considered confirmatory for diagnosis.
Biomarker and diagnostic research for autosomal recessive spastic paraplegia type 78 has been reported in the published literature.
Phenotype severity distribution: 6 always present features, 3 very common features, 11 common features.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for autosomal recessive spastic paraplegia type 78.
10 publications have been identified in PubMed for autosomal recessive spastic paraplegia type 78. Research spans Case Report / Case Series (30%), Diagnostic / Biomarker (20%), and Review / Meta-Analysis (20%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 3 | 30% |
Data assembled from 6 of 12 sources · Last updated Sep 19, 2026, 9:41 PM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
Muscles | 3 | Cerebral cortical atrophy, Shrinkage of the cerebellum (cerebellar atrophy), Falls |
Eyes | 1 | Nystagmus |
Kidneys and urinary system | 1 | Urinary urgency |
Testing and diagnosis research
2 |
20% |
Research summaries | 2 | 20% |
Disease patterns and progression | 2 | 20% |
Clinical study results | 1 | 10% |
Allen MD (2026). [PMID: 41592170](https://pubmed.ncbi.nlm.nih.gov/41592170/). *Amyotroph Lateral Scler Frontotemporal Degener*. [Review / Meta-Analysis]
Sobanska A (2026). [PMID: 41507865](https://pubmed.ncbi.nlm.nih.gov/41507865/). *BMC Neurol*. [Epidemiology / Natural History]
Damásio J (2025). [PMID: 41357347](https://pubmed.ncbi.nlm.nih.gov/41357347/). *Neurol Genet*. [Review / Meta-Analysis]
Sardesai AV (2025). [PMID: 40729784](https://pubmed.ncbi.nlm.nih.gov/40729784/). *Pediatr Neurol*. [Diagnostic / Biomarker]
Affronte L (2025). [PMID: 40799219](https://pubmed.ncbi.nlm.nih.gov/40799219/). *Front Genet*. [Case Report / Case Series]
Zhang F (2025). [PMID: 39853345](https://pubmed.ncbi.nlm.nih.gov/39853345/). *Neuroradiology*. [Epidemiology / Natural History]
Khosravi S (2025). [PMID: 40028680](https://pubmed.ncbi.nlm.nih.gov/40028680/). *Mov Disord Clin Pract*. [Case Report / Case Series]
Ramírez RB (2025). [PMID: 39935284](https://pubmed.ncbi.nlm.nih.gov/39935284/). *Mol Genet Genomic Med*. [Case Report / Case Series]
Scaravilli A (2024). [PMID: 38847051](https://pubmed.ncbi.nlm.nih.gov/38847051/). *Mov Disord*. [Diagnostic / Biomarker]
Beichert L (2024). [PMID: 38847438](https://pubmed.ncbi.nlm.nih.gov/38847438/). *Mov Disord*. [Clinical Trial Publication]