congenital myasthenic syndrome 3B

Summary
Synonym
  • CMS3B
  • congenital myasthenic syndrome 3B, fast-channel
Definition
A congenital myasthenic syndrome characterized by autosomal recessive inheritance of postsynaptic neuromuscular junction defects resulting in rapid decay in endplate current and a failure to reach the threshold for depolarization and early onset progressive muscular weakness that has_material_basis_in homozygous or compound heterozygous mutation in the CHRND gene on chromosome 2q37.
Super Class
autosomal recessive disease congenital myasthenic syndrome
Disease Ontology
DOID:0110665
Mondo Disease Ontology
OMIM
Related Genes
Displaying 1 entry
Gene ID Gene Symbol Description Source
1144 CHRND cholinergic receptor nicotinic delta subunit
Displaying 1 entry
Gene ID Gene Symbol Description Source
11447 Chrnd cholinergic receptor, nicotinic, delta polypeptide
Displaying 1 entry
Gene ID Gene Symbol Description Source
54240 Chrnd cholinergic receptor nicotinic delta 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
444847 chrnd.L cholinergic receptor, nicotinic delta 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 11 - 20 of 32 in total
HPO ID HPO Term
HP:0000961 Cyanosis
HP:0002792 Reduced vital capacity
HP:0000218 High palate
HP:0003202 Skeletal muscle atrophy
HP:0001446 Abnormality of the musculature of the upper limbs
HP:0003443 Decreased size of nerve terminals
HP:0000651 Diplopia
HP:0002650 Scoliosis
HP:0003484 Upper limb muscle weakness
HP:0001315 Reduced tendon reflexes
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