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α-Galactosidase ( EC 3.2.1.22, α-GAL, α-GAL A; systematic name α-D-galactoside galactohydrolase) is a glycoside hydrolase enzyme that catalyses the following reaction: [1] Hydrolysis of terminal, non-reducing α- D -galactose residues in α- D -galactosides, including galactose oligosaccharides, galactomannans and galactolipids
When the target gene is not found in the vector, the alpha fragment gene would be active, producing the alpha fragment and allowing for B-galactosidase to gain its activity. To trace the activity of B-galactosidase a colorless analog of lactose is used, X-gal. The hydrolysis of X-gal by B-galactosidase produces galactose, a blue colored compound.
2717 11605 Ensembl ENSG00000102393 ENSMUSG00000031266 UniProt P06280 P51569 RefSeq (mRNA) NM_000169 NM_013463 RefSeq (protein) NP_000160 NP_038491 Location (UCSC) Chr X: 101.39 – 101.41 Mb Chr X: 133.49 – 133.5 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Galactosidase alpha is an enzyme that in humans is encoded by the GLA gene. Two recombinant forms of human α-galactosidase ...
Deficient activity of lysosomal alpha-galactosidase results in progressive accumulation of globotriaosylceramide (GL-3) within lysosomes, that is believed to trigger a cascade of cellular events. [15] The demonstration of marked alpha-galactosidase deficiency is the conclusive method for the diagnosis in homozygous males.
Galactose-α-1,3-galactose, commonly known as alpha gal and the Galili antigen, is a carbohydrate found in most mammalian cell membranes. It is not found in catarrhines , [ 1 ] including humans, who have lost the glycoprotein alpha-1,3-galactosyltransferase ( GGTA1 ) gene.
X-gal itself is colorless, so the presence of blue-colored product may therefore be used as a test for the presence of active β-galactosidase. This also allows for bacterial β-galactosidase (so called lacZ ) to be used as a reporter in various applications. [5] Similarly, Xαgal is used as a reporter compound for α-galactosidase (e.g. Mel1 ...
one member of the β-galactosidase family, breaks down milk sugars, and its absence in adulthood causes lactose intolerance: Debranching enzyme # EC 3.2.1.33: in mammals, yeast and some bacteria, combines transferase and glucosidase activity in glycogen breakdown Pullulanase: EC 3.2.1.41 : has been used as a detergent
Alpha-galactosidase (EC 3.2.1.22) (melibiase) [8] catalyzes the hydrolysis of melibiose into galactose and glucose. In man, the deficiency of this enzyme is the cause of Fabry's disease (X-linked sphingolipidosis). Alpha-galactosidase is present in a variety of organisms.