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Features include always present findings: Progressive microcephaly, Axial hypotonia, Microcephaly, and Seizure and others.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 6 | Seizure, Profound intellectual disability, Global developmental delay |
NAPB encodes NSF attachment protein beta (298 aa). Required for vesicular transport between the endoplasmic reticulum and the Golgi apparatus Highest expression in Brain Cerebellar Hemisphere (260.7 TPM) and Brain Frontal Cortex BA9 (247.6 TPM).
Developmental and epileptic encephalopathy 107 is associated with mutations in the NAPB gene on chromosome 20.
NAPB is classified as a druggable target with score 0.0.
Genetic testing for NAPB is available. Testing is considered confirmatory for diagnosis.
Biomarker and diagnostic research for developmental and epileptic encephalopathy 107 has been reported in the published literature.
Phenotype severity distribution: 14 always present features.
No clinical trials have been registered for developmental and epileptic encephalopathy 107.
17 publications have been identified in PubMed for developmental and epileptic encephalopathy 107. Research spans Epidemiology / Natural History (29%), Case Report / Case Series (24%), and Basic Science / Preclinical (18%).
Research Type | Count | % of Total |
|---|---|---|
Disease patterns and progression | 5 | 29% |
Data assembled from 5 of 12 sources · Last updated Sep 19, 2026, 11:55 AM UTC
Online Mendelian Inheritance in Man
3 |
Axial hypotonia, Low muscle tone (hypotonia), Appendicular hypotonia |
Head and neck | 2 | Progressive microcephaly, Microcephaly |
Digestive system | 1 | Feeding difficulties in infancy |
Eyes | 1 | Visual impairment |
Patient case studies |
4 |
24% |
Laboratory research | 3 | 18% |
Testing and diagnosis research | 2 | 12% |
Research summaries | 2 | 12% |
Clinical study results | 1 | 6% |
Long J (2026). [PMID: 40401642](https://pubmed.ncbi.nlm.nih.gov/40401642/). *Dis Model Mech*. [Basic Science / Preclinical]
Cicala G (2026). [PMID: 41610868](https://pubmed.ncbi.nlm.nih.gov/41610868/). *Neuropediatrics*. [Diagnostic / Biomarker]
De Dominicis A (2026). [PMID: 41818656](https://pubmed.ncbi.nlm.nih.gov/41818656/). *Neurology*. [Epidemiology / Natural History]
Sahu JK (2026). [PMID: 41774995](https://pubmed.ncbi.nlm.nih.gov/41774995/). *Seizure*. [Review / Meta-Analysis]
Huang D (2026). [PMID: 41970642](https://pubmed.ncbi.nlm.nih.gov/41970642/). *Front Genet*. [Case Report / Case Series]
Venema M (2025). [PMID: 39552268](https://pubmed.ncbi.nlm.nih.gov/39552268/). *Clin Genet*. [Case Report / Case Series]
Gallucci A (2025). [PMID: 40974976](https://pubmed.ncbi.nlm.nih.gov/40974976/). *Mol Pharmacol*. [Basic Science / Preclinical]
GBD 2023 Disease and Injury and Risk Factor Collaborators (2025). [PMID: 41092926](https://pubmed.ncbi.nlm.nih.gov/41092926/). *Lancet*. [Epidemiology / Natural History]
Perulli M (2025). [PMID: 41165013](https://pubmed.ncbi.nlm.nih.gov/41165013/). *Epilepsia Open*. [Epidemiology / Natural History]
Silva S (2025). [PMID: 39763067](https://pubmed.ncbi.nlm.nih.gov/39763067/). *Clin Genet*. [Case Report / Case Series]