期刊论文详细信息
FEBS Letters | |
Glycosidic bond rearrangements in isomeric xylobioses by yeast xylan‐degrading enzymes | |
Biely, Peter1  Petráková, Eva1  | |
[1] Institute of Chemistry, Centre for Chemical Research, Slovak Academy of Sciences, CS-842 38 Bratislava, Czechoslovakia | |
关键词: Cryptococcus albidus; β-Xylanase; β-Xylosidase; β-Xylobiose; Transglycosylation; Induction; Xylβl-2Xyl; 2-O-β-D-xylopyranosyl-D-xylopyranose; Xylβl-3Xyl; 3-O-β-D-xylopyranosyl-D-xylopyranose; Xylβl-4Xyl; 4-O-β-D-xylopyranosyl-D-xylopyranose; Xylβl-4Xylβl-4Xyl; xylotriose; | |
DOI : 10.1016/0014-5793(84)80626-2 | |
学科分类:生物化学/生物物理 | |
来源: John Wiley & Sons Ltd. | |
【 摘 要 】
The cells of Cryptococcus albidus induced for xylan-degrading enzymes are capable of transforming 1,2-β-xylobiose and 1,3-β-xylobiose into 1,4-β-xylobiose, the natural inducer. The conversion involves transglyco-sylation and hydrolysis catalyzed by β-xylosidase and β-xylanase. A probable intermediate of the conversion of 1,2-β-xylobiose was isolated and identified as a trisaccharide, 4-O-β-xylopyranosyl-2-O-β-xylopyranosyl-D-xylopyranose. The trisaccharide is cleaved by purified endo-1,4-β-xylanase of C. albidus mainly at the 1,2-β-linkage yielding xylose and 1,4-β-xylobiose.
【 授权许可】
Unknown
【 预 览 】
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