congenital myasthenic syndrome 18

Summary
Synonym
  • CMS18
Definition
A congenital myasthenic syndrome characterized by autosomal dominant inheritance of presynaptic neuromuscular junction defects, early-onset muscle weakness, easy fatigability, delayed psychomotor development and ataxia that has_material_basis_in heterozygous mutation in the SNAP25 gene on chromosome 20p11.
Super Class
autosomal dominant disease congenital myasthenic syndrome
Disease Ontology
DOID:0110683
Related Genes
Displaying 1 entry
Gene ID Gene Symbol Description Source
6616 SNAP25 synaptosome associated protein 25
Related Glycoprotein
Displaying 1 entry
UniProt ID Protein Name Source
P60880 Synaptosomal-associated protein 25
The Human Phenotype Ontology
Displaying entries 11 - 20 of 64 in total
HPO ID HPO Term
HP:0000651 Diplopia
HP:0000768 Pectus carinatum
HP:0000961 Cyanosis
HP:0001249 Intellectual disability
HP:0001250 Seizure
HP:0001251 Ataxia
HP:0001252 Hypotonia
HP:0001265 Hyporeflexia
HP:0001270 Motor delay
HP:0001283 Bulbar palsy
Displaying all 2 entries
Gene ID Gene Symbol Description
1103 CHAT choline O-acetyltransferase
375790 AGRN agrin

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Acknowledgements

Supported by JST NBDC Grant Number JPMJND2204

Partly supported by NIH Common Fund Grant #1U01GM125267-01


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Last updated: April 6, 2026