Structural elucidation of the polysaccharide moiety of a glycopeptide (GLPCW-II) from Ganoderma lucidum fruiting bodies

文献类型： 外文期刊

第一作者： Ye, LiBin

作者： Ye, LiBin;Zhang, JingSong;Tang, QingJiu;Liu, YanFang;Ye, LiBin;Du, XiuJui;Ye, XiJun;Gong, ChunYu;Pan, YingJie

作者机构：

关键词： Ganoderma lucidum;glycopeptide;NMR spectroscopy;polysaccharide moiety;structural analysis;CAPILLARY GLC;MONOSACCHARIDES;CONFIGURATION

期刊名称：CARBOHYDRATE RESEARCH （ 影响因子：2.104； 五年影响因子：2.192 ）

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收录情况： SCI

摘要： A water-soluble glycopeptide (GLPCW-II) was isolated from the fruiting bodies of Ganoderma lucidum by DEAE-Sepharose Fast-Flow and Sephacryl S-300 High Resolution Chromatography. The glycopeptide had a molecular weight of 1.2 x 10(4) Da (determined by HPLC), and consisted of similar to 90% carbohydrate and similar to 8% protein as determined using the phenol-sulfuric acid method and the BCA (TM) protein assay reagent kit, respectively. The polysaccharide moiety was composed mainly of D-Glc, L-Fuc, and D-Gal in the ratio of 1.00:1.09:4.09. To facilitate structure-activity studies, the structure of the GLPCW-II polysaccharide moiety was elucidated using H-1 and C-13 NMR spectroscopy including COSY, TOCSY, HMBC, HSQC, and ROESY, combined with GC-MS of methylated derivatives, and shown to consist of repeating units with the following structure: [GRAPHICS] (c) 2007 Elsevier Ltd. All rights reserved.

分类号： Q629

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