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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).
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]
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 ...
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. [2]
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.
Galactosylceramidase (or galactocerebrosidase), EC 3.2.1.46, is an enzyme that removes galactose from ceramide derivatives (galactosylceramides) by catalysing the hydrolysis of galactose ester bonds of galactosylceramide, galactosylsphingosine, lactosylceramide, and monogalactosyldiglyceride.
Ceramide glucosyltransferase (or glucosylceramide synthase) is a glucosyltransferase enzyme involved in the production of glucocerebrosides (also called glucosylceramides). ). It is responsible for the first step in synthesis of all glycosphingolipids—critical components of cell membranes—from sphingolipids, attaching a glucose molecule (glycosylation) to produce a glucocerebroside product