raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:309185

Tay-Sachs disease, juvenile form

Synonyms: Beta-hexosaminidase subunit alpha deficiency, juvenile form · GM2 gangliosidosis, Hexosaminidase A deficiency variant, juvenile form · GM2 gangliosidosis, Tay-Sachs variant, juvenile form · HEXA disorder, juvenile form · Subacute juvenile Tay-Sachs disease

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
Autosomal recessive
Status
active

This disease is described under Tay-Sachs disease

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enTay-Sachs disease, juvenile formBeta-hexosaminidase subunit alpha deficiency, juvenile form · GM2 gangliosidosis, Hexosaminidase A deficiency variant, juvenile form · GM2 gangliosidosis, Tay-Sachs variant, juvenile form · HEXA disorder, juvenile form · Subacute juvenile Tay-Sachs disease
frMaladie de Tay-Sachs, forme juvénileDéficit en sous-unité bêta-hexosaminidase alpha, forme juvénile · Gangliosidose à GM2, variant Tay-Sachs, forme juvénile · Gangliosidose à GM2, variant déficit en hexosaminidase A, forme juvénile · Maladie juvénile subaiguë de Tay-Sachs
deTay-Sachs-Krankheit, juvenile FormAlpha-Untereinheit-Defizienz der Beta-Hexosaminidase, juvenile Form · GM2-Gangliosidose, Tay-Sachs-Variante, juvenile Form · GM2-Gangliosidose, Variante des Hexosaminidase-A-Mangels, juvenile Form · Hexosaminidase A-Mangel, juvenile Form · Subakute juvenile Tay-Sachs-Krankheit
esEnfermedad de Tay-Sachs forma juvenilDeficiencia de hexosaminidasa A, forma juvenil · Deficiencia de la subunidad alfa de la beta-hexosaminidasa, forma juvenil · Enfermedad de Tay-Sachs juvenil subaguda · Gangliosidosis GM2, variante Tay-Sachs, forma juvenil · Gangliosidosis GM2, variante por deficiencia de hexosaminidasa A, forma juvenil · Trastorno HEXA, forma juvenil
itMalattia di Tay-Sachs, forma giovanileDeficit di beta-esosaminidasi subunità alfa, forma giovanile · GM2-gangliosidosi, variante da deficit di esosaminidasi A, forma giovanile · GM2-gangliosidosi, variante di Tay-Sachs, forma giovanile · Malattia correlata a HEXA, forma giovanile · Malattia di Tay-Sachs subacuta giovanile
nlZiekte van Tay-Sachs, juveniele vormDeficiëntie van alfa-subeenheid van bèta-hexosaminidase, juveniele vorm · GM2-gangliosidose, Tay-Sachs-variant, juveniele vorm · GM2-gangliosidose, variant met hexosaminidase A-deficiëntie, juveniele vorm · HEXA-stoornis, juveniele vorm · Subacute juveniele ziekte van Tay-Sachs
ptDoença Tay-Sachs, juvenilDeficiência da subunidade alfa beta-hexosaminidase, juvenil · Doença HEXA, juvenil · Doença Tay-Sachs juvenil sub-aguda · Gangliosidose GM2, variante Tay-Sachs, juvenil · Gangliosidose GM2, variante devido a deficiência de hexosaminidase A, juvenil
plChoroba Taya i Sachsa, wariant B, postać młodzieńczaGangliozydoza GM2, wariant B, postać młodzieńcza · Niedobór heksozoaminidazy A, postać młodzieńcza
csTayova-Sachsova nemoc, B varianta, juvenilní formaGM2 gangliosidóza, B varianta, juvenilní forma · Deficit hexosaminidázy A, juvenilní forma · Tay-Sachsova nemoc, B varianta, juvenilní forma
ukХвороба Тея-Сакса, ювенільна формаДефіцит альфа-субодиниці бета-гексозамінідази, ювенільна форма · GM2 гангліозидоз, варіант дефіциту гексозамінідази А, ювенільна форма · GM2 гангліозидоз, варіант Тея-Сакса, ювенільна форма · HEXA-розлад, ювенільна форма · Підгостра ювенільна хвороба Тея-Сакса
zhB型青少年型泰萨克斯病青少年型B型GM2神经节苷脂贮积症
trTay-Sachs hastalığı, B varyantı, genç formuHekzosaminidaz A eksikliği, jüvenil formu · GM2 gangliosidosis, B varyantı, jüvenil formu
2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM272800NTBTvalidated
ICD-10E75.0NTBTattributedvalidated
ICD-115C56.00NTBTindexvalidated
MONDO0017725Evalidated
UMLSC5925030Evalidated

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):

  • ORPHA:845Tay-Sachs disease
    rare inborn errors of metabolism; rare genetic diseases; rare neurological diseases; rare ophthalmic disorders; rare transplant-related disorders

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
HEXADisease-causing germline mutation(s) inAssessedHGNC:4878ENSG0000021361460686915q23hexosaminidase subunit alpha
5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

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

7

Sources for this card