COG7-congenital disorder of glycosylation
Findings
No curated finding names COG7-congenital disorder of glycosylation yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
COG7-CDG is a congenital disorder of glycosylation characterized by dysmorphism, skeletal dysplasia, hypotonia, hepatosplenomegaly, jaundice, cardiac insufficiency, recurrent infections and epilepsy. To date, it has been described in two infants, both of whom died within the first three months of life. The syndrome is caused by a mutation in the gene encoding COG-7 (chromosome 16), a subunit of the oligomeric Golgi complex.
Definition from the Mondo Disease Ontology (MONDO:0012118), read 2026-09-29. CC BY 4.0.
- Inheritance
- Autosomal recessive inheritance
- Onset and course
- Death in infancy · Congenital onset
HPO, annotations 2026-09-02
Features
52 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.
- Adducted thumbHPOHP:0001181
- 3 of 3 reported patients
- Occasional (5% to 29% of cases)
- Cerebral atrophyHPOHP:0002059
- 3 of 3 reported patients
- Elevated circulating aspartate aminotransferase concentrationHPOHP:0031956
- 3 of 3 reported patients
- Elevated circulating creatine kinase activityHPOHP:0003236
- 3 of 3 reported patients
- Frequent (30% to 79% of cases)
- Excessive wrinkled skinHPOHP:0007392
- 5 of 5 reported patients
- Frequent (30% to 79% of cases)
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.
- COG7HGNC:18622
- Definitive · ClinGen · Autosomal recessive · 2024
- Definitive · G2P · Autosomal recessive · 2015
- Strong · Labcorp Genetics (formerly Invitae) · Autosomal recessive · 2020
- Moderate · Ambry Genetics · Autosomal recessive · 2024
- Supportive · Orphanet · Autosomal recessive · 2021
Where it sits
Other names
7 names
Resolves to: COG7-congenital disorder of glycosylation
- Also called
- carbohydrate deficient glycoprotein syndrome type IIeCDG syndrome type IIeCDG-IIeCDG2ECOG7-CDGcongenital disorder of glycosylation type 2econgenital disorder of glycosylation type IIe