severe intellectual disability-poor language-strabismus-grimacing face-long fingers syndrome
Findings
No curated finding names severe intellectual disability-poor language-strabismus-grimacing face-long fingers syndrome yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
An autosomal dominant non-syndromic intellectual disability that has material basis in an autosomal dominant mutation of GATAD2B on chromosome 1q21.3.
Definition from the Mondo Disease Ontology (MONDO:0014034), read 2026-09-29. CC BY 4.0.
- Inheritance
- Autosomal dominant inheritance
HPO, annotations 2026-09-02
Features
51 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.
- Broad nasal tipHPOHP:0000455
- 4 of 4 reported patients
- Frequent (30% to 79% of cases)
- Global developmental delayHPOHP:0001263
- 4 of 4 reported patients
- Frequent (30% to 79% of cases)
- Language impairmentHPOHP:0002463
- 4 of 4 reported patients
- Severe intellectual disabilityHPOHP:0010864
- 4 of 4 reported patients
- Frequent (30% to 79% of cases)
- Short philtrumHPOHP:0000322
- 4 of 4 reported patients
- Frequent (30% to 79% of cases)
- Sparse hairHPOHP:0008070
- 4 of 4 reported patients
Show the remaining 39
- Floppy infantHPOHP:0008947
- Frequent (30% to 79% of cases)
- Generalized non-motor (absence) seizureHPOHP:0002121
- Frequent (30% to 79% of cases)
- HyperactivityHPOHP:0000752
- Frequent (30% to 79% of cases)
- Hyperopic astigmatismHPOHP:0000484
- Frequent (30% to 79% of cases)
- Long fingersHPOHP:0100807
- Frequent (30% to 79% of cases)
- Poor speechHPOHP:0002465
- 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.
- GATAD2BHGNC:30778
- Definitive · ClinGen · Autosomal dominant · 2022
- Definitive · G2P · Autosomal dominant · 2025
- Strong · Illumina · Autosomal dominant · 2019
- Strong · Labcorp Genetics (formerly Invitae) · Autosomal dominant · 2022
- Strong · PanelApp Australia · Autosomal dominant · 2025
- Supportive · Orphanet · Autosomal dominant · 2021
Where it sits
Other names
5 names
Resolves to: severe intellectual disability-poor language-strabismus-grimacing face-long fingers syndrome
- Also called
- autosomal dominant intellectual disability 18GAND syndromeintellectual disability, autosomal dominant type 18mental retardation, autosomal dominant type 18MRD18