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Diseases

Genetic and Rare Diseases Information Center (GARD)

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Glycogen storage disease type 13


Other Names for this Disease
  • Enolase 3 deficiency
  • Enolase-beta deficiency
  • Glycogen storage disease 13
  • GSD13
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Cause


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What causes glycogen storage disease type 13?

Glycogen storage disease type 13 (GSD13) is caused by changes (mutations) in the ENO3 gene.  Glycogen is a substance that is stored in muscle tissue and is used as an important source of energy for the muscles during movement and exercise.  The ENO3 gene makes a chemical called enolase, which is an enzyme that helps the muscles use glycogen for energy.  In GSD13, the ENO3 genes do not work properly such that the body cannot make enolase, and as a result, the muscles do not have enough energy to work properly.[1]
Last updated: 6/24/2012

References
  1. Comi GP, Fortunato F, Lucchiari S, Bordoni A, Prelle A, Jann S, Keller A, Ciscato P, Galbiati S, Chiveri L, Torrente Y, Scarlato G, Bresolin N. Beta-enolase deficiency, a new metabolic myopathy of distal glycolysis. Annals of Neurology. 2001; 50:202-207. http://www.ncbi.nlm.nih.gov/pubmed/11506403. Accessed 6/20/2012.