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
A form of congenital disorders of N-linked glycosylation characterized by facial dysmorphism (microcephaly, high forehead, low posterior hairline, strabismus), hypotonia, failure to thrive, intractable seizures, developmental delay, persistent vomiting and gastric bleeding. Additional features that may be observed include fat pads anomalies, inverted nipples, and body temperature oscillation. The disease is caused by mutations in the gene ALG11 (13q14.3).
Features include always present findings: Type I transferrin isoform profile, Vomiting, Seizure, and Global developmental delay and others; and common findings: Severe backward arching of the body (opisthotonus), Microcephaly, Feeding difficulties, and Inverted nipples and others. 18 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 4 | Absent speech, Seizure, Global developmental delay |
ALG11 encodes ALG11 alpha-1,2-mannosyltransferase (492 aa). GDP-Man:Man(3)GlcNAc(2)-PP-Dol alpha-1,2-mannosyltransferase that operates in the biosynthetic pathway of dolichol-linked oligosaccharides, the glycan precursors employed in protein asparagine (N)-glycosylation. Highest expression in Cells Cultured fibroblasts (4.5 TPM) and Cells EBV-transformed lymphocytes (4.4 TPM).
ALG11-congenital disorder of glycosylation has been associated with mutations in the ALG11 gene on chromosome 13.
The ALG11 protein participates in Defective ALG11 causes CDG-1p, ALG11 transfers the fourth and fifth Man to the N-glycan precursor, and Defective ALG11 does not transfer Man to the N-glycan precursor pathways.
ALG11 is classified as a druggable target (Enzyme category) with score 0.0.
Genetic testing for ALG11 is available. Testing is considered supportive for diagnosis.
Phenotype severity distribution: 7 always present features, 7 common features.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for ALG11-congenital disorder of glycosylation.
5 publications have been identified in PubMed for ALG11-congenital disorder of glycosylation. Research spans Case Report / Case Series (60%), Epidemiology / Natural History (20%), and Gene Therapy / Novel Therapeutics (20%).
Zhao P (2025). [PMID: 41437099](https://pubmed.ncbi.nlm.nih.gov/41437099/). *Orphanet J Rare Dis*. [Epidemiology / Natural History]
Kart PO (2025). [PMID: 40423864](https://pubmed.ncbi.nlm.nih.gov/40423864/). *Neurogenetics*. [Case Report / Case Series]
Fortin O (2025). [PMID: 39809108](https://pubmed.ncbi.nlm.nih.gov/39809108/). *Pediatr Neurol*. [Case Report / Case Series]
Budhraja R (2024). [PMID: 38733638](https://pubmed.ncbi.nlm.nih.gov/38733638/). *Mol Genet Metab*. [Gene Therapy / Novel Therapeutics]
Zhao P (2024). [PMID: 39260222](https://pubmed.ncbi.nlm.nih.gov/39260222/). *Seizure*. [Case Report / Case Series]
Data assembled from 7 of 12 sources · Last updated Sep 20, 2026, 5:10 PM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
Common questions about ALG11-congenital disorder of glycosylation
Digestive system | 2 | Vomiting, Feeding difficulties |
Muscles | 2 | Low muscle tone (hypotonia), Neonatal hypotonia |
Bones and joints | 1 | Severe backward arching of the body (opisthotonus) |
Head and neck | 1 | Microcephaly |
Eyes | 1 | Strabismus |
Ears | 1 | Inner ear hearing loss (sensorineural hearing impairment) |
Pregnancy and birth | 1 | Neonatal hypotonia |
AI-curated news mentioning ALG11-congenital disorder of glycosylation
Updated Jul 21, 2026
FDA approved Casgevy CRISPR gene therapy for children as young as 2 with sickle cell disease on July 1, 2026. Here's what families need to know about this milestone. Approximately 5,500 additional American children are now eligible for this established one-time therapy, according to Vertex Pharmaceuticals, Casgevy's developer. Casgevy also covers transfusion-dependent beta-thalassemia in this new age indication. Sickle cell disease is a lifelong inherited blood disorder that warps red blood cells into stiff, crescent shapes that can block blood flow, starving organs and tissues of oxygen. The world's first CRISPR-based gene therapy has been approved for children as young as two years old, opening the possibility of a single, potentially curative treatment to thousands of American children with sickle cell disease before years of organ damage can narrow what medicine can do for them. Families with children aged 2 and older who have sickle cell disease should speak with their pediatric hematologist about whether Casgevy is appropriate to consider at this stage of their child's disease. Ask specifically which authorized treatment centers perform Casgevy in your region. Treatment is available only at specialized sites, and geographic access remains limited. Contact your child's insurance plan or Medicaid office to ask about coverage. Medicaid coverage for gene therapies varies by state, and some states have developed outcomes-based payment models for high-cost therapies. "With today's decision, pediatric patients as young as 2 years of age can now access a critical additional treatment option to treat these debilitating, life-threatening diseases," said Karim Mikhail, acting director of the Office of Therapeutic Products at the FDA's Center for Biologics Evaluation and Research, according to the FDA press announcement. Casgevy is a non-viral, ex vivo CRISPR/Cas9 gene-edited cell therapy.