congenital disorder of glycosylation, type IIbb
MONDO:0957820Mondo
Findings
No curated finding names congenital disorder of glycosylation, type IIbb yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
- Inheritance
- Autosomal recessive inheritance
- Onset and course
- Infantile onset · Childhood onset
HPO, annotations 2026-09-02
Features
30 features
What the disease is reported to present with, and how often among people who have it — never how often a feature means the disease. HPO, annotations 2026-09-02.
- Abnormal isoelectric focusing of serum transferrinHPOHP:0003160
- 1 of 1 reported patient
- Cerebellar vermis atrophyHPOHP:0006855
- 2 of 2 reported patients
- Delayed CNS myelinationHPOHP:0002188
- 2 of 2 reported patients
- Delayed speech and language developmentHPOHP:0000750
- 2 of 2 reported patients
- EEG abnormalityHPOHP:0002353
- 2 of 2 reported patients
- Global developmental delayHPOHP:0001263
- 4 of 4 reported patients
- Intellectual disabilityHPOHP:0001249
- 3 of 3 reported patients
- MicrocephalyHPOHP:0000252
- 3 of 3 reported patients
- Myoclonic seizureHPOHP:0032794
- 2 of 2 reported patients
- NystagmusHPOHP:0000639
- 2 of 2 reported patients
- SeizureHPOHP:0001250
- 2 of 2 reported patients
- Thin corpus callosumHPOHP:0033725
- 2 of 2 reported patients
Show the remaining 18
- Absent speechHPOHP:0001344
- 2 of 3 reported patients
- Motor delayHPOHP:0001270
- 2 of 3 reported patients
- Aggressive behaviorHPOHP:0000718
- 2 of 4 reported patients
- Appendicular hypotoniaHPOHP:0012389
- 2 of 4 reported patients
- Axial hypotoniaHPOHP:0008936
- 2 of 4 reported patients
- Skeletal muscle atrophyHPOHP:0003202
- 2 of 4 reported patients
Genes
1 gene
Germline variants in the gene encoding each protein, as classified by GenCC submitters, each in their own words. Limited, disputed and refuted submissions are listed too.
- COG3HGNC:18619
- Limited · Ambry Genetics · Autosomal recessive · 2023
Where it sits
Other names
2 names
Resolves to: congenital disorder of glycosylation, type IIbb
- Also called
- CDG IIbbCDGIIBB