raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:468684

CCDC115-CDG

Synonyms: CDG syndrome type IIo · CDG-IIo · CDG2O · Carbohydrate deficient glycoprotein syndrome type IIo · Congenital disorder of glycosylation type 2o · Congenital disorder of glycosylation type IIo

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal
Status
active

A rare congenital disorder of glycosylation characterized by infantile onset of hepatosplenomegaly, progressive liver failure, hypotonia, and global developmental delay. Mild dysmorphic features and seizures have also been reported. Laboratory abnormalities include elevated liver enzymes, mild hypercholesterolemia, and low serum ceruloplasmin.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCCDC115-CDGCDG syndrome type IIo · CDG-IIo · CDG2O · Carbohydrate deficient glycoprotein syndrome type IIo · Congenital disorder of glycosylation type 2o · Congenital disorder of glycosylation type IIo
frCCDC115-CDGAnomalie congénitale de la glycosylation type 2o · Anomalie congénitale de la glycosylation type IIo · CDG-IIo · CDG2O · Syndrome CDG type IIo · Syndrome des glycoprotéines déficientes en hydrates de carbone IIo
deCCDC115-CDGCDG (Congenital Disorder of Glycosylation) Typ IIo · CDG-IIo · CDG-Syndrom Typ IIo · CDG2o · Kohlenhydrat-defizientes Glykoprotein-Syndrom 2o · Kongenitaler Defekt der Glycoproteinbiosynthese Typ IIo
esCCDC115-CDGCDG-IIo · CDG2o · Síndrome CDG tipo IIo · Síndrome de glicoproteínas deficientes en carbohidratos tipo IIo · Trastorno congénito de la glicosilación tipo 2o · Trastorno congénito de la glicosilación tipo IIo
itCCDC115-CDG
nlCCDC115-CDGCDG-IIo · CDG-syndroom type IIo · CDG2O · Congenitale defecten van de glycosylering type 2o · Congenitale defecten van de glycosylering type IIo · Congenitale glycosylatiestoornis type 2o · Congenitale glycosylatiestoornis type IIo
ptCCDC115-CDGCDG-IIo · CDG2O · Doença congénita da glicosilação tipo 2o · Doença congénita da glicosilação tipo IIo · Síndrome CDG tipo IIo · Síndrome de glicoproteína deficiente em carbohidratos tipo IIo
plCCDC115-CDGCDG2O · CDG-IIo · Zespół CDG typu IIo · Wrodzone zaburzenie glikozylacji typu 2o · Wrodzone zaburzenie glikozylacji typu IIo · Zespół obniżonej glikozylacji glikoprotein typu IIo
csCCDC115-CDGCDG2O · CDG-IIo · CDG syndrome type IIo · Congenital disorder of glycosylation type 2o · Congenital disorder of glycosylation type IIo · Carbohydrate deficient glycoprotein syndrome type IIo · CDG syndrom typ IIo · Vrozená porucha glykosylace typ 2o · Vrozená porucha glykosylace typ IIo · Glykoproteinový syndrom deficitu sacharidů typu IIo
ukCCDC115-CDGВуглеводно-дефіцитний глікопротеїновий синдром типу IIo · Синдром CDG, тип IIo · CDG2O · CDG-IIo · Вроджене порушення глікозилювання типу 2o · Вроджене порушення глікозилювання типу IIo
zhIIo型先天性糖基化疾病碳水化合物缺乏糖蛋白综合征llo型
trCCDC115-CDGCDG2O · CDG-IIo · CDG sendromu tip IIo · Tip 2o glikozilasyonun doğumsal bozukluğu · Tip IIo glikozilasyonun doğumsal bozukluğu · Karbonhidrat eksikliği glikoprotein sendromu tip IIo

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM616828Evalidated
ICD-10E77.8NTBTattributedvalidated
ICD-115C54.2NTBTattributedvalidated
MONDO0014789Evalidated
UMLSC4225191Evalidated

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 (2):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
VMA22Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:28178ENSG000001367106137342q21.1vacuolar ATPase assembly factor VMA2226833332[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families8 casesWorldwideCase(s)Validated26833332[PMID]_26833330[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_26833332[PMID]_26833330[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