raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:352403

Spectrin-associated autosomal recessive cerebellar ataxia

Synonyms: Autosomal recessive spinocerebellar ataxia type 14 · Infantile-onset spinocerebellar ataxia-psychomotor delay syndrome · SCAR14 · SPARCA · SPARCA1 · Spectrin-associated autosomal recessive cerebellar ataxia type 1

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy
Status
active

Spectrin-associated autosomal recessive cerebellar ataxia is a rare, genetic neurological disease, due to <i>SPTBN2</i> mutations, characterized by global development delay in infancy, followed by childhood-onset gait ataxia with limb dysmetria and dysdiadochokinesia, mild to severe intellectual disability, development of cerebellar atrophy, and abnormal eye movements (including a convergent squint, hypometric saccades, jerky pursuit movements and incomplete range of movement).

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Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enSpectrin-associated autosomal recessive cerebellar ataxiaAutosomal recessive spinocerebellar ataxia type 14 · Infantile-onset spinocerebellar ataxia-psychomotor delay syndrome · SCAR14 · SPARCA · SPARCA1 · Spectrin-associated autosomal recessive cerebellar ataxia type 1
frAtaxie cérébelleuse autosomique récessive associée à la spectrineAtaxie cérébelleuse autosomique récessive type 1 associée à la spectrine · Ataxie spinocérébelleuse autosomique récessive type 14 · Ataxie spinocérébelleuse à début infantile avec retard psychomoteur · SCAR14 · SPARCA · SPARCA1
deZerebelläre Ataxie, autosomal-rezessive, Spectrin-assoziierteAtaxie, spinozerebelläre, autosomal-rezessive, Typ 14 · Autosomal-rezessive zerebelläre Ataxie - kognitive Störung · SCAR14 · SPARCA · SPARCA1 · Spectrin-assoziierte autosomal-rezessive zerebelläre Ataxie Typ 1 · Spinozerebelläre Ataxie mit Beginn im Kindesalter und psychomotorischer Retardierung
esAtaxia cerebelosa autosómica recesiva asociada a la espectrinaAtaxia cerebelosa autosómica recesiva asociada a la espectrina tipo 1 · Ataxia espinocerebelosa autosómica recesiva tipo 14 · SCAR14 · SPARCA · SPARCA1 · Síndrome de inicio en la lactancia de ataxia espinocerebelosa-retraso psicomotor
itAtassia cerebellare autosomica recessiva associata alla spettrinaAtassia cerebellare autosomica recessiva - deficit cognitivo · Atassia cerebellare autosomica recessiva associata alla spettrina, tipo 1 · Atassia spinocerebellare autosomica recessiva, tipo 14 · SCAR14 · SPARCA · SPARCA1
nlSpectrine-geassocieerde autosomaal recessieve cerebellaire ataxieAutosomaal recessieve spinocerebellaire ataxie type 14 · Infantiel optredende spinocerebellaire ataxie - psychomotorische achterstand-syndroom · SCAR14 · SPARCA · SPARCA1 · Spectrine-geassocieerde autosomaal recessieve cerebellaire ataxie type 1
ptAtaxia cerebelosa autossómica recessiva associada à espectrinaSPARCA1 · Síndrome de ataxia espinocerebelosa-atraso psicomotor de início na infância · Ataxia cerebelosa autossómica recessiva associada à espectrina tipo 1 · Ataxia cerebelosa autossómica recessiva tipo 14 · SCAR14 · SPARCA
plAutosomalna recesywna ataksja móżdżkowa związana ze spektrynąAutosomalna recesywna ataksja móżdżkowa - defekt poznawczy · Autosomalna recesywna ataksja móżdżkowa związana ze spektryną typu 1 · SPARCA · SPARCA1
csAutozomálně recesivní cerebelární ataxie způsobená mutacemi v genu kódujícím spektrinSCAR14 · SPARCA · SPARCA1 · Syndrom zahrnující autozomálně recesivní cerebelární ataxii a kognitivní poruchy · Autozomálně recesivní spinocerebelární ataxie, typ 14 · Autozomálně recesivní cerebelární ataxie, typ 1, asociovaná se spektrinem
ukСпектрин-асоційована аутосомно-рецесивна мозочкова атаксіяАутосомно-рецесивна спіноцеребеллярна атаксія, тип 14 · Спіноцеребеллярна атаксія та синдром психомоторної затримки, що починається в дитячому віці · SCAR14 · SPARCA · SPARCA1 · Спектрин-асоційована аутосомно-рецесивна мозочкова атаксія типу 1
zh血影蛋白相关常染色体隐性小脑共济失调婴儿起病脑桥小脑共济失调-精神运动延迟综合征
trSpektrin-ilişkili otozomal resesif serebellar ataksiSCAR14 · SPARCA · SPARCA1 · Otozomal çekinik spinoserebellar ataksi tip 14 · Spektrin ilişkili otozomal çekinik serebellar ataksi tip 1 · İnfantil başlangıçlı spinoserebellar ataksi-psikomotor gecikme sendromu · Psikomotor gecikmeli infantil başlangıçlı spinoserebellar ataksi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM615386Evalidated
ICD-10G11.1NTBTattributedvalidated
MONDO0014159Evalidated
UMLSC4706415Evalidated

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 (2):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
SPTBN2Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:11276ENSG0000017389860498511q13.2spectrin beta, non-erythrocytic 223236289[PMID]
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Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families2 familiesWorldwideFamily(ies)Validated23236289[PMID]_23838597[PMID]
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.

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HPO phenotypes

20 annotations · validated 2018-02-21
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0002073Progressive cerebellar ataxia
Frequent (79-30%)
HP:0001272Cerebellar atrophy
HP:0000750Delayed speech and language development
HP:0001260Dysarthria
HP:0002075Dysdiadochokinesis
HP:0001310Dysmetria
HP:0001263Global developmental delay
HP:0001347Hyperreflexia
HP:0001256Intellectual disability, mild
HP:0007240Progressive gait ataxia
HP:0001350Slurred speech
HP:0002078Truncal ataxia
Occasional (29-5%)
HP:0000651Diplopia
HP:0000641Dysmetric saccades
HP:0000666Horizontal nystagmus
HP:0002080Intention tremor
HP:0008003Jerky ocular pursuit movements
HP:0000639Nystagmus
HP:0001257Spasticity
HP:0000486Strabismus

Run the differential on the 1 obligate / very frequent terms

Annotation source: 23838597[PMID]_23236289[PMID]_NBK1138[PMID]

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Sources for this card