raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:448010

CAD-CDG

Synonyms: CDG syndrome type Iz · CDG-Iz · CDG1Z · Carbohydrate deficient glycoprotein syndrome type Iz · Congenital disorder of glycosylation type 1z

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

A rare congenital disorder of glycosylation caused by mutations in the <i>CAD</i> gene and characterized by epileptic encephalopathy, global developmental delay, normocytic anemia and anisopoikilocytosis. Loss of acquired skills in early childhood is present and natural disease course can be lethal in early childhood.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCAD-CDGCDG syndrome type Iz · CDG-Iz · CDG1Z · Carbohydrate deficient glycoprotein syndrome type Iz · Congenital disorder of glycosylation type 1z
frCAD-CDGAnomalie congénitale de la glycosylation type 1z · Anomalie congénitale de la glycosylation type IZ · CDG-Iz · CDG1Z · Syndrome CDG type Iz · Syndrome des glycoprotéines déficientes en hydrates de carbone type Iz
deCAD-CDGCDG (Congenital Disorder of Glycosylation) Typ 1Z · CDG-IZ · CDG-Syndrom Typ IZ · CDG1Z · Kohlenhydrat-defizientes Glykoprotein-Syndrom Typ IZ
esCAD-CDGCDG-Iz · CDG1Z · Síndrome CDG tipo Iz · Síndrome de glicoproteínas deficientes en carbohidratos tipo Iz · Trastorno congénito de la glicosilación tipo 1z
itCAD-CDGSindrome delle glicoproteine carenti in carboidrati, tipo IZ · CDG-IZ · CDG1Z · Disturbo congenito della glicosilazione, tipo 1Z · Sindrome CDG, tipo IZ
nlCAD-CDGCDG-Iz · CDG-syndroom type Iz · CDG1Z · Congenitale defecten van de glycosylering type 1z · Congenitale glycosylatiestoornis type 1z · Koolhydraatdeficiënt glycoproteïne-syndroom type Iz
ptCAD-CDG
plCAD-CDGCDG1Z · CDG-Iz · Zespół CDG typu Iz · Wrodzone zaburzenie glikozylacji typu 1z · Zespół obniżonej glikozylacji glikoprotein typu Iz
csCAD-CDGCDG syndrom, typ IZ · CDG-IZ · CDG1Z · Carbohydrate deficient glycoprotein syndrom type IZ · Vrozená porucha glykosylace, typ 1Z · Glykoproteinový syndrom deficitu sacharidů typu IZ
ukCAD-CDGВуглеводно-дефіцитний глікопротеїновий синдром типу Iz · Синдром CDG, тип Iz · CDG1Z · CDG-Iz · Вроджене порушення глікозилювання типу 1z
zh先天性糖基化异常疾病碳水化合物缺乏糖蛋白综合征lz型
trCAD-CDGCDG1Z · CDG-Iz · CDG sendromu tip Iz · Tip 1z'nin doğumsal bozukluğu · Karbonhidrat eksikliği olan glikoprotein sendromu tip Iz

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM616457Evalidated
ICD-10E77.8NTBTattributedvalidated
ICD-115C54.2NTBTattributedvalidated
MONDO0014647Evalidated
UMLSC4225320Evalidated
GARD13621Evalidated

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):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
CADDisease-causing germline mutation(s) inAssessedHGNC:1424ENSG000000847741140102p23.3carbamoyl-phosphate synthetase 2, aspartate transcarbamylase, and dihydroorotase25678555[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families1 casesWorldwideCase(s)Validated25678555[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_25678555[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