raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:93945

X-linked intellectual disability, Porteous type

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
X-linked recessive
Age of onset
Infancy
Status
active

This disease is described under Renpenning syndrome

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enX-linked intellectual disability, Porteous type
frDéficience intellectuelle liée à l'X type Porteous
deIntelligenzminderung, X-chromosomale, Typ Porteous
esDiscapacidad intelectual ligada al cromosoma X tipo Porteous
itDisabilità intellettiva legata all'X, tipo Porteous
nlX-gebonden intellectuele achterstand, Porteous-type
ptPerturbação do desenvolvimento intelectual ligada ao X, tipo Porteous
plNiepełnosprawność intelektualna sprzężona z chromosomem X, typ Porteousa
csX-vázaná mentální retardace, Porteousův typ
ukХ-зчеплена розумова відсталість, тип Портеуса
zhX-连锁智力障碍,Porteous型
trX'e bağlı zihinsel yetersizlik, Porteous tipi
2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM309500NTBTvalidated
ICD-10Q87.8NTBTattributedvalidated
ICD-11LD90.YNTBTindexvalidated
MONDO0019766Evalidated
UMLSC5681616Evalidated

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):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
PQBP1Disease-causing germline mutation(s) inAssessedHGNC:9330ENSG00000102103300463Xp11.23polyglutamine binding protein 1
5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

14 annotations · validated 2020-09-02
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001263Global developmental delay
HP:0001256Intellectual disability, mild
Frequent (79-30%)
HP:0000414Bulbous nose
HP:0000378Cupped ear
HP:0004325Decreased body weight
HP:0002292Frontal balding
HP:0000327Hypoplasia of the maxilla
HP:0000276Long face
HP:0000400Macrotia
HP:0000303Mandibular prognathia
HP:0000275Narrow face
HP:0000322Short philtrum
HP:0004322Short stature
HP:0000486Strabismus

Run the differential on the 2 obligate / very frequent terms

Annotation source: 30143497[PMID]_15782410[PMID]

7

Sources for this card