raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:579

Mucopolysaccharidosis type 1

Synonyms: Alpha-L-iduronidase deficiency · MPS1 · MPSI · Mucopolysaccharidosis type I

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

Mucopolysaccharidosis type 1 (MPS 1) is a rare lysosomal storage disease belonging to the group of mucopolysaccharidoses. There are three variants, differing widely in their severity, with Hurler syndrome being the most severe, Scheie syndrome the mildest and Hurler-Scheie syndrome giving an intermediate phenotype.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMucopolysaccharidosis type 1Alpha-L-iduronidase deficiency · MPS1 · MPSI · Mucopolysaccharidosis type I
frMucopolysaccharidose type 1Déficit en alpha-L-iduronidase · MPS1 · MPSI · Mucopolysaccharidose type I
deMukopolysaccharidose Typ 1Alpha-L-Iduronidase-Mangel · MPS1 · MPSI · Mukopolysaccharidose Typ I
esMucopolisacaridosis tipo 1Deficiencia de alfa-L-iduronidasa · MPS1 · MPSI · Mucopolisacaridosis tipo I
itMucopolisaccaridosi, tipo 1Deficit di alfa-L-iduronidasi · MPS1 · MPSI · Mucopolisaccaridosi, tipo I
nlMucopolysacharidose type 1Deficiëntie van alfa-L-iduronidase · MPS1 · MPSI · Mucopolysacharidose type I
ptMucopolissacaridose tipo 1Deficiência de alfa-L-iduronidase · MPS1 · Síndrome Hurler · Síndrome Scheie
plMukopolisacharydoza typu 1MPS1 · MPSI · Mukopolisacharydoza typu I · Niedobór alfa-L-iduronidazy
csMukopolysacharidóza, typ 1Deficit alfa -L-iduronidázy · MPS1 · MPSI · Mukopolysacharidóza I. typu
ukМукополісахаридоз, тип 1Дефіцит альфа-L-ідуронідази · MPS1 · MPSI · Мукополісахаридоз I типу
zh粘多糖贮积症1型α-L-艾杜糖醛酸酶缺乏症
trMukopolisakkaridoz tip 1MPS1 · MPSI · Mukopolisakkaridoz tip I · Alfa-L-iduronidaz eksikliği

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM607014BTNTvalidated
OMIM607015BTNTvalidated
OMIM607016BTNTvalidated
ICD-10E76.0Especificvalidated
ICD-115C56.30Especificvalidated
MONDO0001586Evalidated
MeSHD008059Evalidated
UMLSC0023786Evalidated
GARD10335Evalidated
MedDRA10056886Evalidated

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 (4):

Children (3):

4

Genes

0 direct · 3 via subtypes

Orphanet records no gene directly on this code.

Recorded by Orphanet on subtypes of this disorder:

GeneSubtypeAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
IDUAORPHA:93473Hurler syndromeDisease-causing germline mutation(s) inAssessedHGNC:5391ENSG000001274152528004p16.3alpha-L-iduronidase8680403[PMID]
IDUAORPHA:93474Scheie syndromeDisease-causing germline mutation(s) inAssessedHGNC:5391ENSG000001274152528004p16.3alpha-L-iduronidase8680403[PMID]
IDUAORPHA:93476Hurler-Scheie syndromeDisease-causing germline mutation(s) inAssessedHGNC:5391ENSG000001274152528004p16.3alpha-L-iduronidase8680403[PMID]
5

Prevalence and incidence

28 records
TypeClassValueAreaQualificationValidationSource
Prevalence at birth1-9 / 100 0001.19 / 100 000NetherlandsValue and classValidated10480370[PMID]
Prevalence at birth1-9 / 1 000 0000.67 / 100 000SwedenValue and classValidated18681890[PMID]_25274184[PMID]
Point prevalence1-9 / 100 0008.7 / 100 000SwedenValue and classValidated18681890[PMID]
Prevalence at birth1-9 / 100 0001.85 / 100 000NorwayValue and classValidated18681890[PMID]
Point prevalence1-5 / 10 00031 / 100 000NorwayValue and classValidated18681890[PMID]
Prevalence at birth1-9 / 1 000 0000.54 / 100 000DenmarkValue and classValidated18681890[PMID]
Point prevalence1-9 / 100 0007.4 / 100 000DenmarkValue and classValidated18681890[PMID]
Prevalence at birth1-9 / 100 0003.8 / 100 000IrelandValue and classValidated18463126[PMID]
Prevalence at birth1-9 / 100 0001.07 / 100 000United KingdomValue and classValidated18796143[PMID]
Prevalence at birth1-9 / 1 000 0000.63 / 100 000TunisiaValue and classValidated20209839[PMID]
Prevalence at birth1-9 / 1 000 0000.11 / 100 000Taiwan, Province of ChinaValue and classValidated19396827[PMID]
Prevalence at birth1-9 / 1 000 0000.58 / 100 000CanadaValue and classValidated10617747[PMID]
Prevalence at birth1-9 / 100 0001.14 / 100 000AustraliaValue and classValidated9918480[PMID]
Prevalence at birth1-9 / 1 000 0000.72 / 100 000Czech RepublicValue and classValidated20490927[PMID]
Point prevalence1-9 / 1 000 0000.5 / 100 000EuropeValue and classValidatedEuropean Medicines Agency 2018[OTHER]
Prevalence at birth1-9 / 100 0001 / 100 000EuropeValue and classValidated[EXPERT]
Prevalence at birth1-9 / 1 000 0000.69 / 100 000GermanyValue and classValidated16435194[PMID]
Prevalence at birth1-9 / 100 0001.33 / 100 000PortugalValue and classValidated14685153[PMID]
Prevalence at birth1-9 / 1 000 0000.82 / 100 000WorldwideValue and classValidatedORPHANET
Prevalence at birth1-9 / 1 000 0000.23 / 100 000JapanValue and classValidated28595941[PMID]
Prevalence at birth1-9 / 1 000 0000.19 / 100 000SwitzerlandValue and classValidated28595941[PMID]
Prevalence at birth1-9 / 1 000 0000.22 / 100 000PolandValue and classValidated25472774[PMID]
Prevalence at birth1-9 / 1 000 0000.24 / 100 000BrazilValue and classValidated31926052[PMID]
Prevalence at birth1-9 / 1 000 0000.34 / 100 000United StatesValue and classValidatedDOI: https://doi.org/10.1016/j.ymgme.2016.11.285[OTHER]
Prevalence at birth1-9 / 100 0003.62 / 100 000Saudi ArabiaValue and classValidated20622343[PMID]
Prevalence at birth1-9 / 1 000 0000.21 / 100 000Korea, Republic ofValue and classValidated25364648[PMID]
Prevalence at birth1-9 / 100 0001 / 100 000IsraelValue and classValidated33239050[PMID]
Prevalence at birth1-9 / 100 0001.1 / 100 000Specific populationValue and classValidated33239050[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

57 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0003312Abnormal form of the vertebral bodies
HP:0000944Abnormal metaphysis morphology
HP:0005930Abnormality of epiphysis morphology
HP:0001608Abnormality of the voice
HP:0000389Chronic otitis media
HP:0000280Coarse facial features
HP:0007957Corneal opacity
HP:0002230Generalized hirsutism
HP:0100790Hernia
HP:0000023Inguinal hernia
HP:0001387Joint stiffness
HP:0008155Mucopolysacchariduria
HP:0002650Scoliosis
HP:0004322Short stature
HP:0000246Sinusitis
HP:0001744Splenomegaly
HP:0001171Split hand
Frequent (79-30%)
HP:0005105Abnormal nasal morphology
HP:0000271Abnormality of the face
HP:0003272Abnormality of the hip bone
HP:0100765Abnormality of the tonsils
HP:0002104Apnea
HP:0002829Arthralgia
HP:0012735Cough
HP:0005280Depressed nasal bridge
HP:0002376Developmental regression
HP:0000268Dolichocephaly
HP:0100625Enlarged thorax
HP:0000232Everted lower lip vermilion
HP:0000293Full cheeks
HP:0000212Gingival overgrowth
HP:0000501Glaucoma
HP:0000365Hearing impairment
HP:0001249Intellectual disability
HP:0000294Low anterior hairline
HP:0000256Macrocephaly
HP:0002024Malabsorption
HP:0000691Microdontia
HP:0003401Paresthesia
HP:0002205Recurrent respiratory infections
HP:0000488Retinopathy
HP:0000407Sensorineural hearing impairment
HP:0000179Thick lower lip vermilion
HP:0009928Thick nasal alae
HP:0000687Widely spaced teeth
Occasional (29-5%)
HP:0001646Abnormal aortic valve morphology
HP:0001654Abnormal heart valve morphology
HP:0100261Abnormal tendon morphology
HP:0010885Avascular necrosis
HP:0001635Congestive heart failure
HP:0004374Hemiplegia/hemiparesis
HP:0000238Hydrocephalus
HP:0001639Hypertrophic cardiomyopathy
HP:0001373Joint dislocation
HP:0000648Optic atrophy
HP:0003416Spinal canal stenosis
HP:0000505Visual impairment

Run the differential on the 12 obligate / very frequent terms

7

Sources for this card