Liquid
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Lead Time
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Usage
For Research Use Only. Not for use in diagnostic or therapeutic procedures.
Essential for the degradation of glycogen in lysosomes. Has highest activity on alpha-1,4-linked glycosidic linkages, but can also hydrolyze alpha-1,6-linked glucans.
Gene References into Functions
PI-rhGAA may have the potential to be a useful therapeutic option for improving the treatment of Pompe disease.PMID:29102549
The most common mutation was c.-32-13T, G. in Pompe disease.PMID:29181627
The narrow substrate-binding pocket of rhGAA is located near the C-terminal ends of beta-strands of the catalytic (beta/alpha)8 domain and shaped by a loop from the N-terminal beta-sheet domain and both inserts I and II.PMID:29061980
This is the first study of rhGAA to differentiate M6P glycans and identify their attachment sites, despite rhGAA already being an approved drug for Pompe disease.PMID:29274340
GAA mutation is associated with Pompe disease.PMID:28763149
Enzyme activities (acid alpha-glucosidase (GAA), galactocerebrosidase (GALC), glucocerebrosidase (GBA), alpha-galactosidase A (GLA), alpha-iduronidase (IDUA) and sphingomyeline phosphodiesterase-1 (SMPD-1)) were measured on ~43,000 de-identified dried blood spot (DBS) punches, and screen positive samples were submitted for DNA sequencing to obtain genotype confirmation of disease riskPMID:27238910
enzyme replacement therapy (ERT) (alglucosidase alfa) stabilizes respiratory function and improves mobility and muscle strength in late-onset Pompe disease.Lysosomal glycogen in muscle biopsies from treatment-naive LOPD patients was reduced post-ERT (alglucosidase alfa).PMID:27473031
In adults with Pompe disease, antibody formation does not interfere with rhGAA efficacy in the majority of patients, is associated with IARs, and may be attenuated by the IVS1/delex18 GAA genotypePMID:27362911
Reanalysis of the patient's DNA sample using next generation sequencing (NGS) of a panel of target genes causing glycogen storage disorders demonstrated compound heterozygosity for a point mutation and an exonic deletion in the GAA gene.PMID:28657663
Thirteen novel and two common GAA mutations were identified in this study. The allelic frequency of c.2662G > T (p.Glu888X) was 23.1% in northern Chinese patients and 4.2% in southern Chinese patients, whereas the allelic frequency of c.1935C >A (p.Asp645Glu) was 20.8% in southern and 3.8% in northern Chinese patients.PMID:28394184
This is the first report of the alpha-glucosidase inhibitory activity of compounds 20, 26, and 29, and the findings support the important role of Eremanthus species as novel sources of new drugs and/or herbal remedies for treatment of type 2 diabetes.PMID:27322221
Compared with controls, GAA gene expression levels in coronary artery disease (CAD) patients were significantly increased, suggesting that GAA may be involved in the CAD development.PMID:26580301
Study reports on the clinical, biochemical, morphological, muscle imaging, and genetic findings of six adult Pompe patients from five unrelated families with the c.-32-13T>G GAA gene mutation in homozygous state. All patients had decreased GAA activity and elevated creatine kinase levels.PMID:26231297
glycogen storage disease type II is caused by deficiency of GAA activity resulting from mutation of GAA genePMID:26575883
RT-PCR followed by DNA sequence analysis of patients with Pompe disease revealed new variant in GAA gene resulting in aberrant splicing event.PMID:25243733
Findings indicate that GAA c.2238G > C (p.W746C) novel mutation is the most common mutation in mainland Chinese late-onset Pompe patients, as observed in Taiwanese patients expanding the genetic spectrum of the disease.PMID:25526786
this study shows several alterations distributed along the GAA gene in a sample of Brazilian families.PMID:25681614
Mutations in acid alpha-glucosidase gene is associated with Pompe disease.PMID:25026126
GAA deficiency results in reduced mTORC1 activation that is partly responsible for the skeletal muscle wasting phenotype and can be amerliorated by leucine supplementation.PMID:25231351
The phenotype LO-GSDII with GAA mutation in the North of Italy seems not significantly different from other LO-GSDII populations in Europe or the USA.PMID:24158270
Data shows the largest informative family with late-onset Pompe disease described in the literature showing a peculiar complex set of mutations of GAA gene that may partially elucidate the clinical heterogeneity of this family.PMID:24107549
7 of 27 in: Gene. 2014 Mar 1;537(1) Novel GAA sequence variant c.1211 A>G reduces enzyme activity but not protein expression in infantile and adult onset Pompe disease.PMID:24384324
This study demonstrates that the c.-32-13T>G mutation of GAA gene abrogates the binding of the splicing factor U2AF65 to the polypyrimidine tract of exon 2 and that several splicing factors affect exon 2 inclusion.PMID:24150945
study describes two unrelated cases affected with classical early-onset Pompe disease, both pertaining to the same small Mexican region, with the same novel homozygous frameshift mutation at gene GAA (c.1987delC)PMID:24399866
Mutations in the GAA gene is associated with glycogen storage disease type II.PMID:23884227
Adult patients with alpha-glucosidase mutations other than c.-32-13 T>G can have very low alpha-glucosidase activity in fibroblasts but express higher activity in muscle and store less glycogen in muscle than patients with infantile Pompe disease.PMID:23000108
Study gave an update of the pompe disease mutation database with 60 novel GAA sequence variants and additional studies on the functional effect of 34 previously reported variants.PMID:22644586
Transcriptional response to GAA deficiency (Pompe disease) in infantile-onset patientsPMID:22658377
Report genetic testing to indentify GAA mutations in German patients with late-onset glycogen storage disease type II.PMID:18607768
we define a critical role for endoplasmic reticulum stress in the activation of autophagy due to the 546G>T acid alpha glucosidase mutationPMID:21982629
No common mutation is found in association with low levels of acid alpha-glucosidase activity in late-onset Pompe disease; most patients produce unprocessed forms of GAA protein compared with patients who have higher GAA activity.PMID:21484825
Mutation analysis of the GAA gene revealed the p.D645E in all patients with Pompe disease, suggesting it as the most common mutation in the Thai population.PMID:21039225
The enzymatic screening of Pompe disease can be justified in patients with myopathies of unknown etiology in this report of a Mexican patient with late-onset glycogen-storage disease type 2.PMID:20350966
Data show that p.R1147G missense mutation impaired glucosidase activity.PMID:19834502
Homozygosity for multiple contiguous single-nucleotide polymorphisms as an indicator of large heterozygous deletions: identification of a novel heterozygous 8-kb intragenic deletion (IVS7-19 to IVS15-17) in a patient with glycogen storage disease type IIPMID:11854868
novel target of the Notch-1/Hes-1 signaling pathwayPMID:12065598
2 novel mutations of the acid alpha-glucosidase gene, P361L and R437C, were found in a juvenile-onset glycogen storage disease type II (GSDII) 16-year-old Chinese patient. The asymptomatic 13-year-old brother of the proband is also compound heterozygotePMID:12601120
mutations in the alpha glucosidase gene is associated with infantile onset glycogen storage disease type II.PMID:12923862
Childhood Pompe disease demonstrating phenotypic variability of p.Asp645Asn.PMID:15145338
data show that the mature forms of GAA characterized by polypeptides of 76 or 70 kDa are in fact larger molecular mass multicomponent enzyme complexes; peptides released during proteolytic processing remained tightly associated with the major speciesPMID:15520017
2 novel mutations (Ala237Val and Gly293Arg) were foundin the acid alpha-glucosidase gene in a Pompe disease patient with vascular involvement.PMID:15668445
Acid-alpha-glucosidase activity and specific activity, and lysosomal glycogen content are useful predictors of age of onset in Pompe diseasePMID:15993875
Complete molecular analysis of the GAA gene of patients with late onset glycogen storage disease type II shows missense mutations and splicing mutations.PMID:16917947
From 14 Argentinean patients diagnosed with either infantile or late-onset disease, we identified 14 distinct mutations in the acid alpha-glucosidase (GAA) gene including nine novel variants.PMID:17056254
Two new missense mutations (p.266Pro>Ser and p.439Met>Lys) were new missense mutations causing late onset GSD II.PMID:17092519
Patients with the same c.-32-13T-->G haplotype (c.q. GAA genotype) may manifest first symptoms at different ages, indicating that secondary factors may substantially influence the clinical course of patients with this mutation.PMID:17210890
demonstrated a significant increase of GAA activity (1.3-7.5-fold) after imino sugar treatment in fibroblasts from patients carrying the mutations L552P (three patients) and G549R (one patient)PMID:17213836
N-glycans of recombinant human GAA were expressed in the milk of transgenic rabbits.PMID:17293352
The role of autophagy in Pompe disease was examined by analyzing single muscle fibers.PMID:17592248
Mutations in glucosidase alpha is asspciated with glycogen storage disease type IIPMID:17616415