Description:
GLYCOGEN STORAGE DISEASE II
GLUCOSIDASE, ALPHA, ACID; GAA
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Repository
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NIGMS Human Genetic Cell Repository
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| Subcollection |
Heritable Diseases
Lysosomal Storage Diseases |
| Class |
Disorders of Carbohydrate Metabolism |
| Quantity |
25 µg |
| Quantitation Method |
Please see our FAQ |
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Biopsy Source
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Peripheral vein
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Cell Type
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B-Lymphocyte
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Tissue Type
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Blood
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Transformant
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Epstein-Barr Virus
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Sample Source
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DNA from LCL
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Race
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White
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Ethnicity
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PAKISTANI
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Relation to Proband
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proband
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Confirmation
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Biochemical characterization - other
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Species
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Homo sapiens
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Common Name
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Human
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Remarks
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| IDENTIFICATION OF SPECIES OF ORIGIN |
Species of Origin Confirmed by Nucleoside Phosphorylase, Glucose-6-Phosphate Dehydrogenase, and Lactate Dehydrogenase Isoenzyme Electrophoresis |
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| alpha-glucosidase |
According to the submitter, biochemical test results for this subject showed decreased enzyme activity. EC Number: 3.2.1.20; 1% activity. |
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| Gene |
GAA |
| Chromosomal Location |
17q25.2-q25.3 |
| Allelic Variant 1 |
606800.0015; GLYCOGEN STORAGE DISEASE TYPE II |
| Identified Mutation |
ARG854TER; Becker et al. [Am. J. Hum. Genet. 62: 991-994 (1998)] found a high frequency of the arg854-to-ter mutation of the GAA gene in compound heterozygous or homozygous state in cases of glycogen storage disease II (232300) in various African populations and in African-American patients. |
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| Gene |
GAA |
| Chromosomal Location |
17q25.2-q25.3 |
| Allelic Variant 2 |
606800.0015; GLYCOGEN STORAGE DISEASE TYPE II |
| Identified Mutation |
ARG854TER; Becker et al. [Am. J. Hum. Genet. 62: 991-994 (1998)] found a high frequency of the arg854-to-ter mutation of the GAA gene in compound heterozygous or homozygous state in cases of glycogen storage disease II (232300) in various African populations and in African-American patients. |
| Remarks |
Clinically affected; onset of symptoms at 3.5 months of age; diagnosis at 4 ½ months of age; died at 4 ½ months of age; difficulty breathing; cough; poor appetite and failure to thrive (<10th percentile head circumference, 25th percentile height and weight) ; hypotonia (unable to hold head or roll over); hyperreflexia; cardiomyopathy (echocardiogram revealed concentric hypertrophy of the posterior wall of the left ventricle and septum; no left ventricular outlet obstruction); 1% of normal alpha-D-glucosidase activity; cross-reactive immunological material (CRIM)-negative status confirmed by Western blot and GAA sequencing analyses (homozygous for p.Arg854X)(PMID:24044919); treatments include Captopril, Lasix, and percutaneous endoscopic gastrostomy; family history: parents are first cousins; donor subject had three unaffected siblings and one affected sibling (died at 4 months of age; cardiomegaly; cystic hygroma; elevated lactate, pyruvate and ammonia; muscle biopsy showed lysosomal glycogen inclusion consistent with Pompe disease). |
| Z. Wang, et al, A new assay for fast, reliable CRIM status determination in infantile-onset Pompe disease. Mol Genet Metab. 2013 Aug 29. pii: S1096-7192(13)00300-4. doi: 10.1016/j.ymgme.2013.08.010. [Epub ahead of print]: 2013 |
| PubMed ID: 24044919 |
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| MM Hermans, et al, Identification of a point mutation in the human lysosomal alpha-glucosidase gene causing infantile glycogenosis type II. Biochem Biophys Res Commun. 1991 Sep 16;179(2):919-26.: 1991 |
| PubMed ID: 1898413 |
| dbSNP |
dbSNP ID: 22877 |
| Gene Cards |
GAA |
| Gene Ontology |
GO:0004553 hydrolase activity, hydrolyzing O-glycosyl compounds |
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GO:0004558 alpha-glucosidase activity |
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GO:0005764 lysosome |
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GO:0005975 carbohydrate metabolism |
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GO:0005980 glycogen catabolism |
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GO:0006091 energy pathways |
| NCBI Gene |
Gene ID:2548 |
| NCBI GTR |
232300 GLYCOGEN STORAGE DISEASE II; GSD2 |
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606800 GLUCOSIDASE, ALPHA, ACID; GAA |
| OMIM |
232300 GLYCOGEN STORAGE DISEASE II; GSD2 |
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606800 GLUCOSIDASE, ALPHA, ACID; GAA |
| Omim Description |
ACID MALTASE DEFICIENCY; AMD |
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ALPHA-1,4-GLUCOSIDASE DEFICIENCYGLUCOSIDASE, ALPHA, ACID, INCLUDED; GAA, INCLUDED |
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CARDIAC FORM OF GENERALIZED GLYCOGENOSIS |
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CARDIOMEGALIA GLYCOGENICA DIFFUSA |
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GLUCOSIDASE, ACID, ALPHA DEFICIENCY; GAA DEFICIENCY |
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GLYCOGEN STORAGE DISEASE II |
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POMPE DISEASE |
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