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. (DO)
Note: Use of the qualifier "multiple interactions" designates that the annotated interaction
is comprised of a complex set of reactions and/or regulatory events, possibly involving
additional chemicals and/or gene products.
ClinVar Annotator: match by term: Glycogen storage disease, type V | ClinVar Annotator: match by term: McArdle disease, mild | ClinVar Annotator: match by term: Myophosphorylase deficiency | ClinVar Annotator: match by term: PYGM DEFICIENCY