raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:589515

PUM1-associated developmental disability-ataxia-seizure syndrome

Synonyms: PADDAS syndrome

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Infancy, Neonatal
Status
active

A rare genetic syndromic intellectual disability characterized by developmental delay, intellectual disability, ataxia, and, more variably, seizures and short stature. Behavioral abnormalities may also be observed, as well as variable facial and other dysmorphic features (such as broad nasal bridge, hypertelorism, almond-shaped eyes, high-arched palate, and anomalies of the fingers and toes). Brain imaging may reveal dilated ventricles, small corpus callosum, or posterior fossa abnormalities.

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Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPUM1-associated developmental disability-ataxia-seizure syndromePADDAS syndrome
frSyndrome de retard de développement-ataxie-épilepsie associé à PUM1Syndrome PADDAS
dePUM1-assoziiertes Syndrom der Entwicklungsstörung, Ataxie und KrampfanfälleAtaxie, spinozerebelläre, Typ 47 · PADDAS-Syndrom · PUM1-assoziierte Entwicklungsstörung mit Ataxie und Krampfanfällen · SCA47
esSíndrome de discapacidad del desarrollo-ataxia-epilepsia asociado a PUM1Ataxia espinocerebelosa tipo 47 · Síndrome PADDAS
itSindrome da ritardo dello sviluppo-atassia-crisi epilettiche correlata a PUM1Sindrome PADDAS
nlPUM1-geassocieerd ontwikkelingsstoornis - ataxie - insulten-syndroomPADDAS-syndroom
ptSíndrome de perturbação do desenvolvimento intelectual-ataxia-convulsões PUM1-associadaSíndrome PADDAS
plZespół niepełnosprawności rozwojowej, ataksji i napadów związanych z PUM1Zespół PADDAS · Zespół niepełnosprawności rozwojowej, ataksji i drgawek związany z PUM1
csPUM1-asociovaný syndrom zahrnující vývojovou poruchu, ataxii a záchvaty= en
ukPUM1-асоційований синдром затримки розвитку-атаксії-судомСиндром PADDAS
zhPUM1-associated developmental disability-ataxia-seizure syndromePADDAS syndrome · SCA47
trPUM1-associated developmental disability-ataxia-seizure syndromePADDAS syndrome · SCA47

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM620719Evalidated
ICD-10G11.8NTBTattributedvalidated
MONDO0035117Evalidated
MONDO35117Evalidated
UMLSC4693672Evalidated

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

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Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (3):

No children.

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Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
PUM1Disease-causing germline mutation(s) inAssessedHGNC:14957ENSG000001346446072041p35.2pumilio RNA binding family member 130903679[PMID]
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Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families14 casesWorldwideCase(s)Validated29474920[PMID]_31859446[PMID]_30903679[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidated29474920[PMID]_31859446[PMID]_30903679[PMID]

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

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HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

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Sources for this card