Kisho is an information platform, not a medical provider. Nothing on this site constitutes medical advice, diagnosis, or treatment recommendations. All content is aggregated from publicly available sources (including ClinicalTrials.gov, PubMed, FDA.gov, and Orphanet) and is provided for informational purposes only. Clinical trial eligibility, treatment decisions, and any health-related actions should always be discussed with a qualified healthcare professional. Kisho does not endorse any specific therapy, organization, or clinical trial. Terms of use · Privacy policy
MOGS-CDG is a form of congenital disorders of N-linked glycosylation characterized by generalized hypotonia, craniofacial dysmorphism (prominent occiput, short palpebral fissures, long eyelashes, broad nose, high arched palate , retrognathia), hypoplastic genitalia, seizures, feeding difficulties, hypoventilation, severe hypogammaglobulinemia with generalized edema, and increased resistance to particular viral infections (particularly to enveloped viruses). The disease is caused by loss-of-function mutations in the gene MOGS (2p13.1).
Features include always present findings: Seizure, Reduced tissue mannosyl-oligosaccharide glucosidase activity, Enlarged liver (hepatomegaly), and Generalized hypotonia and others. 30 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 4 | Seizure, Demyelinating peripheral neuropathy, Brain shrinkage (cerebral atrophy) |
MOGS encodes mannosyl-oligosaccharide glucosidase (837 aa). In the context of N-glycan degradation, cleaves the distal alpha 1,2-linked glucose residue from the Glc(3)Man(9)GlcNAc(2) oligosaccharide precursor in a highly specific manner Highest expression in Thyroid (86.2 TPM) and Spleen (83.4 TPM).
MOGS-congenital disorder of glycosylation is caused by mutations in the MOGS gene on chromosome 2.
The MOGS protein participates in Defective MOGS causes CDG-2b, MOGS removes terminal glucose from Glu3Man9GlcNAc2-CDH1, and Trimming of the first glucose by by mannosyl-oligosaccharide glucosidase pathways.
MOGS is classified as a druggable target (Enzyme category) with score 0.0.
Genetic testing for MOGS is available. Testing is considered confirmatory for diagnosis.
Biomarker and diagnostic research for MOGS-congenital disorder of glycosylation has been reported in the published literature.
Phenotype severity distribution: 19 always present features.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for MOGS-congenital disorder of glycosylation.
215 publications have been identified in PubMed for MOGS-congenital disorder of glycosylation. Research spans Basic Science / Preclinical (54%), Review / Meta-Analysis (32%), and Epidemiology / Natural History (5%).
Research Type | Count | % of Total |
|---|---|---|
Laboratory research | 117 | 54% |
Data assembled from 7 of 12 sources · Last updated Oct 4, 2026, 3:04 AM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
Common questions about MOGS-congenital disorder of glycosylation
Muscles |
4 |
Low muscle tone (hypotonia), Generalized hypotonia, Brain shrinkage (cerebral atrophy) |
Digestive system | 2 | Enlarged liver (hepatomegaly), Feeding difficulties in infancy |
Bones and joints | 2 | Recurrent fractures, Thoracic scoliosis |
Arms and legs | 2 | Hand clenching, Overlapping fingers |
Head and neck | 1 | High palate |
Lab test results | 1 | Elevated circulating aspartate aminotransferase concentration |
Lungs and breathing | 1 | Hypoventilation |
Ears | 1 | Inner ear hearing loss (sensorineural hearing impairment) |
Eyes | 1 | Damage to the optic nerve (optic atrophy) |
Age of onset: at birth.
Research summaries
69 |
32% |
Disease patterns and progression | 10 | 5% |
Testing and diagnosis research | 8 | 4% |
New treatment approaches | 7 | 3% |
Patient case studies | 4 | 2% |
Zhu N (2026). [PMID: 41177858](https://pubmed.ncbi.nlm.nih.gov/41177858/). *Sci China Life Sci*. [Basic Science / Preclinical]
Elgood-Hunt G (2026). [PMID: 41557029](https://pubmed.ncbi.nlm.nih.gov/41557029/). *Glycoconj J*. [Basic Science / Preclinical]
Kong W (2026). [PMID: 41910405](https://pubmed.ncbi.nlm.nih.gov/41910405/). *J Virol*. [Basic Science / Preclinical]
Liu J (2026). [PMID: 42012463](https://pubmed.ncbi.nlm.nih.gov/42012463/). *FASEB J*. [Review / Meta-Analysis]
Yi L (2026). [PMID: 41264770](https://pubmed.ncbi.nlm.nih.gov/41264770/). *Protein Cell*. [Review / Meta-Analysis]
Al-Shahrani H (2026). [PMID: 41897354](https://pubmed.ncbi.nlm.nih.gov/41897354/). *Biomolecules*. [Basic Science / Preclinical]
Agu PC (2026). [PMID: 42126469](https://pubmed.ncbi.nlm.nih.gov/42126469/). *Glycoconj J*. [Review / Meta-Analysis]
Harada Y (2026). [PMID: 41895537](https://pubmed.ncbi.nlm.nih.gov/41895537/). *Biochim Biophys Acta Gen Subj*. [Review / Meta-Analysis]
Mao H (2026). [PMID: 41380967](https://pubmed.ncbi.nlm.nih.gov/41380967/). *The Journal of biological chemistry*. [Basic Science / Preclinical]
Jiang S (2026). [PMID: 41698153](https://pubmed.ncbi.nlm.nih.gov/41698153/). *Adv Sci (Weinh)*. [Basic Science / Preclinical]