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An autosomal dominant non-syndromic intellectual disability that has material basis in an autosomal dominant mutation of GATAD2B on chromosome 1q21.3.
Features include always present findings: Language impairment, Strabismus, Sparse hair, and Severe intellectual disability and others; and sometimes findings: Tics and Hyperactivity. 23 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 3 | Poor speech, Severe intellectual disability, Global developmental delay |
Arms and legs | 2 | Long fingers, Long toe |
Eyes | 1 | Strabismus |
Head and neck | 1 | Thin upper lip vermilion |
Muscles | 1 | Neonatal hypotonia |
Pregnancy and birth | 1 | Neonatal hypotonia |
GATAD2B encodes GATA zinc finger domain containing 2B (593 aa). Transcriptional repressor. Acts as a component of the histone deacetylase NuRD complex which participates in the remodeling of chromatin. Enhances MBD2-mediated repression.
Severe intellectual disability-poor language-strabismus-grimacing face-long fingers syndrome is caused by mutations in the GATAD2B gene on chromosome 1.
The GATAD2B protein participates in monoSUMO1-K33 GATAD2B, GATAD2B is SUMOylated, and ZNF423 recruits NuRD to EBF2 target genes pathways.
GATAD2B is classified as a druggable target with score 0.0.
Genetic testing for GATAD2B is available. Testing is considered confirmatory for diagnosis.
Biomarker and diagnostic research for severe intellectual disability-poor language-strabismus-grimacing face-long fingers syndrome has been reported in the published literature.
Phenotype severity distribution: 7 always present features.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for severe intellectual disability-poor language-strabismus-grimacing face-long fingers syndrome.
45 publications have been identified in PubMed for severe intellectual disability-poor language-strabismus-grimacing face-long fingers syndrome. Research spans Case Report / Case Series (40%), Basic Science / Preclinical (20%), and Epidemiology / Natural History (16%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 18 | 40% |
Laboratory research | 9 | 20% |
Disease patterns and progression | 7 | 16% |
Other research | 5 | 11% |
Clinical study results | 3 | 7% |
Testing and diagnosis research | 1 | 2% |
Research summaries | 1 | 2% |
New treatment approaches | 1 | 2% |
Musante L (2026). [PMID: 41709284](https://pubmed.ncbi.nlm.nih.gov/41709284/). *Genome Med*. [Other]
Musante I (2026). [PMID: 41325909](https://pubmed.ncbi.nlm.nih.gov/41325909/). *Neurobiology of disease*. [Case Report / Case Series]
Tan CW (2026). [PMID: 40371175](https://pubmed.ncbi.nlm.nih.gov/40371175/). *Molecular syndromology*. [Basic Science / Preclinical]
Sokolova T (2026). [PMID: 41718288](https://pubmed.ncbi.nlm.nih.gov/41718288/). *Reports (MDPI)*. [Case Report / Case Series]
Silva MF (2026). [PMID: 41694865](https://pubmed.ncbi.nlm.nih.gov/41694865/). *Cureus*. [Case Report / Case Series]
Celik VD (2026). [PMID: 41940405](https://pubmed.ncbi.nlm.nih.gov/41940405/). *Mol Syndromol*. [Other]
Hindermann M (2026). [PMID: 41729076](https://pubmed.ncbi.nlm.nih.gov/41729076/). *JCI insight*. [Case Report / Case Series]
Lin IS (2026). [PMID: 41769593](https://pubmed.ncbi.nlm.nih.gov/41769593/). *Cureus*. [Case Report / Case Series]
Al-Shahrani H (2026). [PMID: 41897354](https://pubmed.ncbi.nlm.nih.gov/41897354/). *Biomolecules*. [Other]
Long Y (2025). [PMID: 39958354](https://pubmed.ncbi.nlm.nih.gov/39958354/). *Frontiers in immunology*. [Gene Therapy / Novel Therapeutics]
Data assembled from 7 of 12 sources · Last updated Sep 20, 2026, 5:40 PM UTC
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