raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:309297

Mucopolysaccharidosis type 4A

Synonyms: GALNS deficiency · Galactosamine-6-sulfatase deficiency · MPS4A · MPSIVA · Morquio disease type A · Mucopolysaccharidosis type IVA · N-acetylgalactosamine-6-sulfate sulfatase deficiency

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

This disease is described under Mucopolysaccharidosis type 4

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMucopolysaccharidosis type 4AGALNS deficiency · Galactosamine-6-sulfatase deficiency · MPS4A · MPSIVA · Morquio disease type A · Mucopolysaccharidosis type IVA · N-acetylgalactosamine-6-sulfate sulfatase deficiency
frMucopolysaccharidose type 4ADéficit en GALNS · Déficit en N-acetylgalactosamine-6-sulfate sulfatase · Déficit en galactosamine-6-sulfatase · MPS4A · Maladie de Morquio type A · Mucopolysaccharidose type IVA
deMukopolysaccharidose Typ 4AGalaktosamin-6-Sulfatase-Mangel · MPS4A · MPSIVA · Morquio-Krankheit Typ A · Mukopolysaccharidose Typ IVA · N-Acetyl-Glukosamin-6-Sulfatsulfatase-Mangel · GALNS-Mangel
esMucopolisacaridosis tipo 4ADeficiencia de GALNS · Deficiencia de N-acetilgalactosamina-6-sulfato sulfatasa · Deficiencia de galactosamina-6-sulfatasa · Enfermedad de Morquio tipo A · MPS4A · MPSIVA · Mucopolisacaridosis tipo IVA
itMucopolisaccaridosi, tipo 4ADeficit di GALNS · Deficit di N-acetilgalattosamina-6-solfato solfatasi · Deficit di galattosamina-6-solfatasi · MPS4A · MPSIVA · Malattia di Morquio, tipo A · Mucopolisaccaridosi, tipo IVA
nlMucopolysacharidose type 4AMucopolysacharidose type IVA · N-acetylgalactosamine-6-sulfaatsulfatasedeficiëntie · Ziekte van Morquio type A · GALNS-deficiëntie · Galactosamine-6-sulfatasedeficiëntie · MPS4A · MPSIVA
ptMucopolissacaridose tipo 4A
plMukopolisacharydoza typu 4AChoroba Morquio typu A · MPS4A · MPSIVA · Mukopolisacharydoza typu IVA · Niedobór galaktozamino-6-sulfatazy · Niedobór GALNS · Niedobór sulfatazy N-acetylgalaktozamino-6-siarczanu
csMukopolysacharidóza, typ 4ADeficit GALNS · Deficit galaktosamin-6-sulfatázy · MPS4A · MPSIVA · Morquiova nemoc, typ A · Mukopolysacharidóza typ IVA · Deficit N-acetylgalaktosamin-6-sulfát sulfatázy
ukМукополісахаридоз, тип 4АДефіцит галактозамін-6-сульфатази · Дефіцит GALNS · Хвороба Моркіо, тип А · MPS4A · MPSIVA · Мукополісахаридоз типу IVA · Дефіцит N-ацетилгалактозамін-6-сульфатсульфатази
zh黏多糖贮积症4A型N-乙酰半乳糖胺-6-硫酸盐硫酸酯酶缺乏
trMukopolisakkaridoz tip 4AMPS4A · MPSIVA · GALNS eksikliği · Morquio hastalığı tip A · Mukopolisakkaridoz tip IVA · Galaktozamin-6-sülfataz eksikliği · N-asetilgalaktozamin-6-sülfat sülfataz eksikliği
2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM253000Evalidated
ICD-10E76.2NTBTattributedvalidated
ICD-115C56.32NTBTindexvalidated
MONDO0009659Evalidated
UMLSC0086651Evalidated
GARD3785Evalidated

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:582Mucopolysaccharidosis type 4
    rare developmental anomalies during embryogenesis; rare inborn errors of metabolism; rare genetic diseases; rare ophthalmic disorders; rare bone diseases; rare transplant-related disorders

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
GALNSDisease-causing germline mutation(s) inAssessedHGNC:4122ENSG0000014101261222216q24.3galactosamine (N-acetyl)-6-sulfatase23844448[PMID]
5

Prevalence and incidence

13 records
TypeClassValueAreaQualificationValidationSource
Prevalence at birth1-9 / 1 000 0000.29 / 100 000SwedenValue and classValidated25274184[PMID]
Prevalence at birth1-9 / 1 000 0000.38 / 100 000GermanyValue and classValidated16435194[PMID]_25404155[PMID]
Point prevalence1-9 / 1 000 0000.12 / 100 000GermanyValue and classValidated25404155[PMID]
Prevalence at birth1-9 / 100 0001.4 / 100 000United Arab EmiratesValue and classValidated23430803[PMID]_25404155[PMID]
Point prevalence1-9 / 1 000 0000.46 / 100 000United Arab EmiratesValue and classValidated25404155[PMID]
Prevalence at birth1-9 / 1 000 0000.497 / 100 000AustraliaValue and classValidated9918480[PMID]_25404155[PMID]
Point prevalence1-9 / 1 000 0000.153 / 100 000AustraliaValue and classValidated25404155[PMID]
Prevalence at birth1-9 / 1 000 0000.48 / 100 000CanadaValue and classValidated10617747[PMID]_25404155[PMID]
Point prevalence1-5 / 10 00015 / 100 000EuropeValue and classValidatedEuropean Medicines Agency 2009[OTHER]
Point prevalence1-9 / 1 000 0000.15 / 100 000CanadaValue and classValidated25404155[PMID]
Point prevalence<1 / 1 000 0000.029 / 100 000United StatesValue and classValidated34051828[PMID]
Prevalence at birth1-9 / 1 000 0000.11 / 100 000United StatesValue and classValidated34051828[PMID]
Point prevalence<1 / 1 000 0000.0848 / 100 000BrazilValue and classValidated35209917[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.

6

HPO phenotypes

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

7

Sources for this card