Acid alpha-glucosidase

Glucosidase, alpha; acid
Identifiers
Symbols GAA ; LYAG
External IDs OMIM: 606800 MGI: 95609 HomoloGene: 37268 ChEMBL: 2608 GeneCards: GAA Gene
EC number 3.2.1.20
RNA expression pattern
More reference expression data
Orthologs
Species Human Mouse
Entrez 2548 14387
Ensembl ENSG00000171298 ENSMUSG00000025579
UniProt P10253 P70699
RefSeq (mRNA) NM_000152 NM_001159324
RefSeq (protein) NP_000143 NP_001152796
Location (UCSC) Chr 17:
80.1 – 80.12 Mb
Chr 11:
119.27 – 119.29 Mb
PubMed search

Lysosomal alpha-glucosidase (also called α-1,4-glucosidase[1] and acid maltase[2]) is an enzyme that in humans is encoded by the GAA gene.[2] Errors in this gene cause glycogen storage disease type II (Pompe disease).

This gene encodes acid alpha-glucosidase, which is essential for the degradation of glycogen to glucose in lysosomes. Different forms of acid alpha-glucosidase are obtained by proteolytic processing. Defects in this gene are the cause of glycogen storage disease II, also known as Pompe disease, which is an autosomal recessive disorder with a broad clinical spectrum. Three transcript variants encoding the same protein have been found for this gene.[2]

References

  1. Donald J. Voet; Judith G. Voet; Charlotte W. Pratt (2008). "Additional Pathways in Carbohydrate Metabolism". Principles of Biochemistry, Third edition. Wiley. p. 538. ISBN 978-0470-23396-2.
  2. 1 2 3 "Entrez Gene: GAA glucosidase, alpha; acid (Pompe disease, glycogen storage disease type II)".

External links

Further reading


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