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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
Galactosidases are enzymes (glycoside hydrolases) that catalyze the hydrolysis of galactosides into monosaccharides.. Galactosides can be classified as either alpha or beta. If the galactoside is classified as an alpha-galactoside, the enzyme is called alpha-galactosidase, and is responsible for catalyzing the hydrolysis of substrates that contain α-galactosidic residues, such as ...
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 ...
Alpha gal has also been suggested to play a role in an immunoglobulin E-specific allergic response to some meats. [4] While this allergic response is quite well documented, there is significant discrepancy between laboratory tests and clinical findings, indicating that much research must still be done on the alpha gal mechanism of action and ...
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.
Glycoside hydrolase family 27 together with family 31 and the family 36 alpha-galactosidases form the glycosyl hydrolase clan GH-D, a superfamily of alpha-galactosidases, alpha-N-acetylgalactosaminidases, and isomaltodextranases which are likely to share a common catalytic mechanism and structural topology.
Other names in common use include trihexosyl ceramide galactosidase, ceramide trihexosidase, ceramidetrihexoside alpha-galactosidase, ...
β-galactosidase is a protein encoded by the lacZ gene of the lac operon, and it exists as a homotetramer in its active state. However, a mutant β-galactosidase derived from the M15 strain of E. coli has its N-terminal residues 11—41 deleted and this mutant, the ω-peptide, is unable to form a tetramer and is inactive. This mutant form of ...