raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:500163

Witteveen-Kolk syndrome

Synonyms: SIN3A-related intellectual disability syndrome · WITKOS

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Antenatal, Neonatal
Status
active

A rare genetic neurodevelopmental syndrome characterized by mild intellectual disability, developmental delay, dysmorphic facial features, growth- and feeding problems, hypotonia, epilepsy, behavioral problems and a variety of congenital abnormalities.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enWitteveen-Kolk syndromeSIN3A-related intellectual disability syndrome · WITKOS
frSyndrome de Witteveen-KolkSyndrome de déficience intellectuelle associé à SIN3A · WITKOS
deWitteveen-Kolk-SyndromIntelligenzminderung-Syndrom, SIN3A-assoziiertes · WITKOS
esSíndrome de Witteveen-Kolk
itSidrome di Witteveen-KolkSindrome da disabilità intellettiva correlata a SIN3A · WITKOS
nlSyndroom van Witteveen-KolkSIN3A-gerelateerde intellectuele achterstand-syndroom · WITKOS
ptSíndrome Witteveen-KolkSíndrome de deficiência intelectual relacionada ao SIN3A
plZespół Witteveen i Kolk= en
csSIN3A-vázaná mentální retardace= en
ukСиндром Віттевіна-КолькаСиндром інтелектуальної недостатності, повязаний з SIN3A · WITKOS
zhSIN3A相关智力障碍综合征= en
trSIN3A-ilişkili zihinsel yetersizlik sendromu= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM613406Evalidated
ICD-10Q87.8NTBTattributedvalidated
MONDO0044699Evalidated
UMLSC4310804Evalidated

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):

Children (2):

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
SIN3BORPHA:500166SIN3-related intellectual disability syndrome due to a point mutationDisease-causing germline mutation(s) (loss of function) inAssessedHGNC:19354ENSG0000012751160777719p13.11SIN3 transcription regulator family member B33811806[PMID]
SIN3AORPHA:500166SIN3-related intellectual disability syndrome due to a point mutationDisease-causing germline mutation(s) inAssessedHGNC:19353ENSG0000016937560777615q24.2SIN3 transcription regulator family member A27399968[PMID]
SIN3AORPHA:9406515q24 microdeletion syndromeRole in the phenotype ofAssessedHGNC:19353ENSG0000016937560777615q24.2SIN3 transcription regulator family member A27399968[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families40 casesWorldwideCase(s)Validated27399968[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_27399968[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.

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Sources for this card