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Features include always present findings: Cerebellar hypoplasia, Global developmental delay, and Intellectual disability; and very common findings: Low muscle tone (hypotonia). 15 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 6 | Bilateral tonic-clonic seizure, Absent speech, Focal clonic seizure |
UFSP2 function has not been fully characterized.
Developmental and epileptic encephalopathy 106 is associated with mutations in the UFSP2 gene on chromosome 4.
Genetic testing for UFSP2 is available. Testing is considered confirmatory for diagnosis.
Biomarker and diagnostic research for developmental and epileptic encephalopathy 106 has been reported in the published literature.
Phenotype severity distribution: 3 always present features, 1 very common feature, 4 common features.
No clinical trials have been registered for developmental and epileptic encephalopathy 106.
27 publications have been identified in PubMed for developmental and epileptic encephalopathy 106. Research spans Basic Science / Preclinical (33%), Clinical Trial Publication (26%), and Epidemiology / Natural History (15%).
Research Type | Count | % of Total |
|---|---|---|
Laboratory research | 9 | 33% |
Data assembled from 5 of 12 sources · Last updated Sep 20, 2026, 1:00 AM UTC
Online Mendelian Inheritance in Man
Head and neck
1 |
Microcephaly |
Muscles | 1 | Low muscle tone (hypotonia) |
Arms and legs | 1 | Limb hypertonia |
Growth and development | 1 | Postnatal growth retardation |
Clinical study results
7 |
26% |
Disease patterns and progression | 4 | 15% |
Patient case studies | 3 | 11% |
Research summaries | 2 | 7% |
Other research | 1 | 4% |
Testing and diagnosis research | 1 | 4% |
Cohen NT (2026). [PMID: 41818657](https://pubmed.ncbi.nlm.nih.gov/41818657/). *Neurology*. [Other]
Zhang LB (2026). [PMID: 41791021](https://pubmed.ncbi.nlm.nih.gov/41791021/). *Neurology*. [Case Report / Case Series]
Chałupczyńska B (2026). [PMID: 41751517](https://pubmed.ncbi.nlm.nih.gov/41751517/). *Genes*. [Basic Science / Preclinical]
M YK (2026). [PMID: 42150140](https://pubmed.ncbi.nlm.nih.gov/42150140/). *Neurology*. [Case Report / Case Series]
Marini C (2026). [PMID: 41915870](https://pubmed.ncbi.nlm.nih.gov/41915870/). *Neurology*. [Epidemiology / Natural History]
Riccardi F (2026). [PMID: 42190144](https://pubmed.ncbi.nlm.nih.gov/42190144/). *Neurology*. [Clinical Trial Publication]
De Dominicis A (2026). [PMID: 41818656](https://pubmed.ncbi.nlm.nih.gov/41818656/). *Neurology*. [Basic Science / Preclinical]
Nguyen JNH (2026). [PMID: 41687048](https://pubmed.ncbi.nlm.nih.gov/41687048/). *Neurology*. [Diagnostic / Biomarker]
Ferreira BK (2026). [PMID: 41750164](https://pubmed.ncbi.nlm.nih.gov/41750164/). *Brain sciences*. [Basic Science / Preclinical]
Henry OJ (2025). [PMID: 40183601](https://pubmed.ncbi.nlm.nih.gov/40183601/). *Epilepsia*. [Clinical Trial Publication]