neurodevelopmental disorder with impaired language and ataxia and with or without seizures
MONDO:0859201Mondo
Findings
No curated finding names neurodevelopmental disorder with impaired language and ataxia and with or without seizures yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
- Inheritance
- Autosomal dominant inheritance
- Onset and course
- Neonatal onset
HPO, annotations 2026-09-02
Features
53 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.
- ChoreoathetosisHPOHP:0001266
- 1 of 1 reported patient
- DroolingHPOHP:0002307
- 1 of 1 reported patient
- Global developmental delayHPOHP:0001263
- 12 of 12 reported patients
- Intellectual disabilityHPOHP:0001249
- 8 of 8 reported patients
- MicrocephalyHPOHP:0000252
- 1 of 1 reported patient
- Motor stereotypyHPOHP:0000733
- 1 of 1 reported patient
- Paroxysmal bursts of laughterHPOHP:0000749
- 1 of 1 reported patient
- Protruding tongueHPOHP:0010808
- 1 of 1 reported patient
- Delayed speech and language developmentHPOHP:0000750
- 9 of 12 reported patients
- Delayed ability to walkHPOHP:0031936
- 5 of 12 reported patients
- Gait ataxiaHPOHP:0002066
- 4 of 12 reported patients
- Axial hypotoniaHPOHP:0008936
- 3 of 11 reported patients
Show the remaining 41
- Happy demeanorHPOHP:0040082
- 3 of 12 reported patients
- Absent speechHPOHP:0001344
- 2 of 11 reported patients
- Aggressive behaviorHPOHP:0000718
- 2 of 11 reported patients
- Autistic behaviorHPOHP:0000729
- 2 of 11 reported patients
- Cerebral visual impairmentHPOHP:0100704
- 2 of 11 reported patients
- Delayed CNS myelinationHPOHP:0002188
- 2 of 11 reported patients
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.
- GRIK2HGNC:4580
- Strong · Labcorp Genetics (formerly Invitae) · Autosomal dominant · 2022
- Strong · G2P · Autosomal dominant · 2025
- Strong · PanelApp Australia · Autosomal dominant · 2025