congenital myasthenic syndrome 4B

Summary
Synonym
  • CMS4B
  • congenital myasthenic syndrome 4B fast-channel
Definition
A congenital myasthenic syndrome characterized by autosomal recessive inheritance of postsynaptic neuromuscular junction defects, early-onset progressive muscle weakness, and kinetic abnormalities of the AChR channel that has_material_basis_in homozygous or compound heterozygous mutation in the CHRNE gene on chromosome 17p13.
Super Class
autosomal recessive disease congenital myasthenic syndrome
Disease Ontology
DOID:0110677
Mondo Disease Ontology
OMIM
Related Genes
Displaying 1 entry
Gene ID Gene Symbol Description Source
1145 CHRNE cholinergic receptor nicotinic epsilon subunit
Displaying 1 entry
Gene ID Gene Symbol Description Source
11448 Chrne cholinergic receptor, nicotinic, epsilon polypeptide
Displaying 1 entry
Gene ID Gene Symbol Description Source
29422 Chrne cholinergic receptor nicotinic epsilon subunit
Displaying all 3 entries
Gene ID Gene Symbol Description Source
42918 nAChRalpha1 nicotinic Acetylcholine Receptor alpha1
42919 nAChRalpha2 nicotinic Acetylcholine Receptor alpha2
42920 nAChRbeta2 nicotinic Acetylcholine Receptor beta2
Displaying 1 entry
Gene ID Gene Symbol Description Source Organism
386670 chrne.L cholinergic receptor, nicotinic epsilon L homeolog Xenopus laevis (African clawed frog)
Displaying 1 entry
Gene ID Gene Symbol Description Source
172150 unc-63 Acetylcholine receptor subunit alpha-type unc-63
The Human Phenotype Ontology
Displaying entries 1 - 10 of 32 in total
HPO ID HPO Term
HP:0001324 Muscle weakness
HP:0002878 Respiratory failure
HP:0000597 Ophthalmoparesis
HP:0003403 EMG: decremental response of compound muscle action potential to repetitive nerve stimulation
HP:0002329 Drowsiness
HP:0000496 Abnormality of eye movement
HP:0003388 Easy fatigability
HP:0002091 Restrictive ventilatory defect
HP:0003458 EMG: myopathic abnormalities
HP:0000961 Cyanosis
Displaying 1 entry
Gene ID Gene Symbol Description
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: December 9, 2024