raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:100988

Autosomal dominant spastic paraplegia type 6

Synonyms: SPG6

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Adolescent, Adult, Childhood
Status
active

A rare, pure or complex form of hereditary spastic paraplegia typically characterized by presentation in late adolescence or early adulthood as a pure phenotype of lower limb spasticity with hyperreflexia and extensor plantar responses, as well as mild bladder disturbances and <i>pes cavus</i>. Rarely, it can present as a complex phenotype with additional manifestations including epilepsy, variable peripheral neuropathy and/or memory impairment.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAutosomal dominant spastic paraplegia type 6SPG6
frParaplégie spastique autosomique dominante type 6= en
deSpastische Paraplegie, autosomal-dominante, Typ 6= en
esParaplejía espástica autosómica dominante tipo 6= en
itParaplegia spastica autosomica dominante, tipo 6
nlAutosomaal dominante spastische paraplegie type 6= en
ptParaplegia espástica autossómica dominante tipo 6= en
plAutosomalna dominująca paraplegia spastyczna typu 6Autosomalna dominująca rodzinna paraplegia spastyczna typu 3 · SPG6
csAutozomálně dominantní spastická paraplegie, typ 6SPG6 · Autozomálně dominantní familiární spastická paraplegie, typ 3
ukАутосомно-домінантна спастична параплегія, тип 6= en
zh常染色体显性遗传痉挛性截瘫6型= en
trOtozomal dominant spastik parapleji tip 6= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM600363Evalidated
ICD-10G11.4NTBTattributedvalidated
ICD-118B44.00NTBTindexvalidated
MONDO0010878Evalidated
MeSHC536866Evalidated
UMLSC1838192Evalidated
GARD4928Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
NIPA1Disease-causing germline mutation(s) inAssessedHGNC:17043ENSG0000017011360814515q11.2NIPA magnesium transporter 114508710[PMID]_15643603[PMID]
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Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families10 familiesWorldwideFamily(ies)ValidatedORPHANET
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

13 annotations · validated 2018-02-13
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0003487Babinski sign
HP:0001288Gait disturbance
HP:0002495Impaired vibratory sensation
HP:0002395Lower limb hyperreflexia
HP:0002061Lower limb spasticity
HP:0001258Spastic paraplegia
Frequent (79-30%)
HP:0002069Bilateral tonic-clonic seizure
HP:0010505Limitation of movement at ankles
HP:0008800Limited hip movement
HP:0001761Pes cavus
HP:0003202Skeletal muscle atrophy
Occasional (29-5%)
HP:0002174Postural tremor
HP:0000020Urinary incontinence

Run the differential on the 6 obligate / very frequent terms

Annotation source: 7854534[PMID]_15711826[PMID]

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Sources for this card