neurodevelopmental disorder with hypotonia and cerebellar atrophy, with or without seizures
MONDO:0030037Mondo
Findings
No curated finding names neurodevelopmental disorder with hypotonia and cerebellar atrophy, with or without seizures yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
- Inheritance
- Autosomal recessive inheritance
- Onset and course
- Infantile onset
HPO, annotations 2026-09-02
Features
16 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.
- Generalized hypotoniaHPOHP:0001290
- 12 of 12 reported patients
- Global developmental delayHPOHP:0001263
- 12 of 12 reported patients
- Cerebellar atrophyHPOHP:0001272
- 10 of 12 reported patients
- SeizureHPOHP:0001250
- 4 of 8 reported patients
- AtaxiaHPOHP:0001251
- 5 of 12 reported patients
- Decreased circulating alkaline phosphatase activityHPOHP:0003282
- 2 of 10 reported patients
- Elevated circulating alkaline phosphatase concentrationHPOHP:0003155
- 0 of 10 reported patients
- BrachydactylyHPOHP:0001156
- Decreased expression of GPI-anchored proteins on the cell surfaceHPOHP:0041048
- Dental crowdingHPOHP:0000678
- High anterior hairlineHPOHP:0009890
- Long faceHPOHP:0000276
Show the remaining 4
- Prominent antitragusHPOHP:0008593
- Prominent foreheadHPOHP:0011220
- Sparse lateral eyebrowHPOHP:0005338
- Thin upper lip vermilionHPOHP:0000219
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.
- PIGKHGNC:8965
- Strong · Labcorp Genetics (formerly Invitae) · Autosomal recessive · 2021
- Strong · G2P · Autosomal recessive · 2020
- Strong · PanelApp Australia · Autosomal recessive · 2025
- Moderate · Ambry Genetics · Autosomal recessive · 2020
Where it sits
Other names
2 names
Resolves to: neurodevelopmental disorder with hypotonia and cerebellar atrophy, with or without seizures
- Also called
- Glycosylphosphatidylinositol Biosynthesis Defect 22NEDHCAS