glycogen storage disease V

Summary
Synonym
  • Glycogen storage disease 5
  • Glycogen storage disease, type V
  • McArdle's disease
  • glycogen storage disease type V
  • myophosphorylase deficiency
Definition
A glycogen storage disease that is characterized by onset of exercise intolerance and muscle cramps in childhood or adolescence and that has_material_basis_in homozygous or compound heterozygous mutation in the PYGM gene, which encodes muscle glycogen phosphorylase, on chromosome 11q13.
Super Class
autosomal recessive disease glycogen storage disease
Disease Ontology
DOID:2746
Mondo Disease Ontology
MeSH
UMLS
NCI Thesaurus
ORDO
GARD
MGI genotype (from TogoID)
Related Genes
Displaying 1 entry
Gene ID Gene Symbol Description Source
5837 PYGM glycogen phosphorylase, muscle associated
Displaying 1 entry
Gene ID Gene Symbol Description Source
19309 Pygm muscle glycogen phosphorylase
Related Glycoprotein
Displaying 1 entry
UniProt ID Protein Name Source
Q9WUB3 Glycogen phosphorylase, muscle form
The Human Phenotype Ontology
Displaying entries 1 - 10 of 27 in total
HPO ID HPO Term
HP:0003202 Skeletal muscle atrophy
HP:0008967 Exercise-induced muscle stiffness
HP:0001919 Acute kidney injury
HP:0012622 Chronic kidney disease
HP:0003710 Exercise-induced muscle cramps
HP:0001639 Hypertrophic cardiomyopathy
HP:0005216 Impaired mastication
HP:0002875 Exertional dyspnea
HP:0009073 Progressive proximal muscle weakness
HP:0003546 Exercise intolerance
Displaying 1 entry
Gene ID Gene Symbol Description
5837 PYGM glycogen phosphorylase, muscle associated

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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 8, 2025