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1,3-β glucan synthase : ウィキペディア英語版
1,3-Beta-glucan synthase

1,3-Beta-glucan synthase is a glucosyltransferase enzyme involved in the generation of beta-glucan in fungi. It serves as a pharmacological target for antifungal drugs such as caspofungin, anidulafungin, and micafungin.
The biosynthesis of disaccharides, oligosaccharides, and polysaccharides involves the action of hundreds of different glycosyltransferases. These enzymes catalyse the transfer of sugar moieties from activated donor molecules to specific acceptor molecules, forming glycosidic bonds. A classification of glycosyltransferases using nucleotide diphospho-sugar, nucleotide monophospho-sugar and sugar phosphates (), and related proteins into distinct sequence-based families has been described. This classification is available on the CAZy (CArbohydrate-Active EnZymes) web site . The same three-dimensional fold is expected to occur within each of the families. Because 3-D structures are better conserved than sequences, several of the families defined on the basis of sequence similarities may have similar 3-D structures and, therefore, form 'clans'.
This is the glycosyltransferase 48 family, which consists of various 1,3-beta-glucan synthase components including Gls1, Gls2, and Gls3 from yeast. 1,3-Beta-glucan synthase () also known as callose synthase catalyses the formation of a beta-1,3-glucan polymer that is a major component of the fungal cell wall. The reaction catalysed is:-
UDP-glucose + (N) = UDP + (N+1).
==See also==

* Echinocandin
* glucan

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「1,3-Beta-glucan synthase」の詳細全文を読む



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