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β-Glucocerebrosidase (also called acid β-glucosidase, D-glucosyl-N-acylsphingosine glucohydrolase, or GCase) is an enzyme with glucosylceramidase activity (EC 3.2.1.45) that cleaves by hydrolysis the β-glycosidic linkage of the chemical glucocerebroside, an intermediate in glycolipid metabolism that is abundant in cell membranes (particularly skin cells). [5]
Taliglucerase alfa, sold under the brand name Elelyso among others, is a biopharmaceutical medication developed by Protalix and Pfizer. [3] [4] [full citation needed] The drug, a recombinant glucocerebrosidase used to treat Gaucher's disease, is the first plant-made pharmaceutical to win approval by the U.S. Food and Drug Administration (FDA).
It is a recombinant DNA-produced analogue of the human enzyme β-glucocerebrosidase. Cerezyme is a freeze-dried medicine containing imiglucerase, manufactured by Genzyme Corporation. It is given intravenously after reconstitution as a treatment for Type 1 and Type 3 [4] Gaucher's disease. It is available in formulations containing 200 or 400 ...
Gaucher's disease or Gaucher disease (/ ɡ oʊ ˈ ʃ eɪ /) (GD) is a genetic disorder in which glucocerebroside (a sphingolipid, also known as glucosylceramide) accumulates in cells and certain organs.
Velaglucerase alfa, sold under the brand name Vpriv, is a medication used for the treatment of Gaucher disease Type 1. [1] It is a hydrolytic lysosomal glucocerebroside-specific enzyme, which is a recombinant form of glucocerebrosidase. It has an identical amino acid sequence to the naturally occurring enzyme. [2] It is manufactured by Shire plc.
In Gaucher's disease, the enzyme glucocerebrosidase is nonfunctional and cannot break down glucocerebroside into glucose and ceramide in the lysosome. [1] Affected macrophages, called Gaucher cells, have a distinct appearance similar to "wrinkled tissue paper" under light microscopy, because the substrates build-up within the lysosome.
Alglucerase was a biopharmaceutical drug for the treatment of Gaucher's disease.It was a modified form of human β-glucocerebrosidase enzyme, where the non-reducing ends of the oligosaccharide chains have been terminated with mannose residues.
In enzymology, a glucosylceramidase (EC 3.2.1.45) is an enzyme that catalyzes the chemical reaction. D-glucosyl-N-acylsphingosine + H 2 O D-glucose + N-acylsphingosine. Thus, the two substrates of this enzyme are D-glucosyl-N-acylsphingosine and H 2 O, whereas its two products are D-glucose and N-acylsphingosine.