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Glucosamine is part of the structure of two polysaccharides, chitosan and chitin. Glucosamine is one of the most abundant monosaccharides. [2] Produced commercially by the hydrolysis of shellfish exoskeletons or, less commonly, by fermentation of a grain such as corn or wheat, glucosamine has many names depending on country. [3]
More specifically, n-acetyl-β-d-glucosaminidase hydrolyses terminal non-reducing n-acetyl-β-glucosamine residues in chitin molecules (ie chitobiose, chitotriose) and in glycoproteins. [6] Bonds broken during hydrolysis include the β-glycosidic bonds of β-glucosaminide and β-galactosiminide, and specific monosaccharide products include N ...
Chitinases [8] are enzymes that catalyze the hydrolysis of the beta-1,4-N-acetyl-D-glucosamine linkages in chitin polymers. Chitinases belong to glycoside hydrolase families 18 or 19. [ 9 ] Chitinases of family 19 (also known as classes IA or I and IB or II) are enzymes from plants that function in the defence against fungal and insect ...
Glycoside hydrolases can also be classified according to the stereochemical outcome of the hydrolysis reaction: thus they can be classified as either retaining or inverting enzymes. [6] Glycoside hydrolases can also be classified as exo or endo acting, dependent upon whether they act at the (usually non-reducing) end or in the middle ...
This EC 3.2 enzyme -related article is a stub. You can help Wikipedia by expanding it.
glucosamine-6-sulfatase EC 3.1.6.14 (G6S), which hydrolyzes the N-acetyl-D-glucosamine 6-sulfate units of heparan sulfate and keratan sulfate; N-sulfoglucosamine sulfohydrolase EC 3.10.1.1, the lysosomal enzyme that hydrolyses N-sulfo-D-glucosamine into glucosamine and sulfate; sea urchin embryo arylsulfatase EC 3.1.6.1;