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Structural studies on a novel fucogalactan sulfate extracted from the brown seaweed Laminaria japonica
Wang, Jing1,2; Zhang, Quanbin1; Zhang, Zhongshan1,2; Zhang, Hong1; Niu, Xizhen1
2010-08-01
发表期刊INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
ISSN0141-8130
卷号47期号:2页码:126-131
文章类型Article
摘要A low molecular weight fucogalactan, obtained from the brown seaweed Laminaria japonica, was separated into three fractions (LF1, LF2 and LF3) by DEAE-Sepharose FF column chromatography. All three fractions contained predominantly fucose, sulfate group and galactose. The results showed that the main fraction LF2 consisted of L-fucose, D-galactose and sulfate at a molar ratio 6:1:9. Structural study on the LF2 was carried out by NMR spectroscopy. The backbone of LF2 was primarily (1 -> 3)-linked alpha-L-fucopyranose residues (75%) and a few (1 -> 4)-alpha-L-fucopyranose linkages (25%). The branch points were at C-4 of 3-linked alpha-L-fucopyranose residues by beta-D-galactopyranose unites (35%, molar ratio) or at C-2 of 3-linked alpha-L-fucopyranose residues by non-reducing terminal fucose unites (65%, molar ratio). Sulfate groups occupied at position C-4 or C-2, sometimes C-2, 4 to fucose residues, and C-3 and/or C-4 to galactose residues. The structure of LF2 was supposed as following:; A low molecular weight fucogalactan, obtained from the brown seaweed Laminaria japonica, was separated into three fractions (LF1, LF2 and LF3) by DEAE-Sepharose FF column chromatography. All three fractions contained predominantly fucose, sulfate group and galactose. The results showed that the main fraction LF2 consisted of L-fucose, D-galactose and sulfate at a molar ratio 6:1:9. Structural study on the LF2 was carried out by NMR spectroscopy. The backbone of LF2 was primarily (1 -> 3)-linked alpha-L-fucopyranose residues (75%) and a few (1 -> 4)-alpha-L-fucopyranose linkages (25%). The branch points were at C-4 of 3-linked alpha-L-fucopyranose residues by beta-D-galactopyranose unites (35%, molar ratio) or at C-2 of 3-linked alpha-L-fucopyranose residues by non-reducing terminal fucose unites (65%, molar ratio). Sulfate groups occupied at position C-4 or C-2, sometimes C-2, 4 to fucose residues, and C-3 and/or C-4 to galactose residues. The structure of LF2 was supposed as following: [GRAPHICS] (C) 2010 Elsevier B.V. All rights reserved.
关键词Fucogalactan Sulfate Structure Brown Algae Nmr Laminaria Japonica
学科领域Biochemistry & Molecular Biology
DOI10.1016/j.ijbiomac.2010.05.010
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收录类别SCI
语种英语
WOS记录号WOS:000279999200008
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被引频次:127[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/6160
专题海洋生物技术研发中心
作者单位1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
第一作者单位中国科学院海洋研究所
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Wang, Jing,Zhang, Quanbin,Zhang, Zhongshan,et al. Structural studies on a novel fucogalactan sulfate extracted from the brown seaweed Laminaria japonica[J]. INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,2010,47(2):126-131.
APA Wang, Jing,Zhang, Quanbin,Zhang, Zhongshan,Zhang, Hong,&Niu, Xizhen.(2010).Structural studies on a novel fucogalactan sulfate extracted from the brown seaweed Laminaria japonica.INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,47(2),126-131.
MLA Wang, Jing,et al."Structural studies on a novel fucogalactan sulfate extracted from the brown seaweed Laminaria japonica".INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES 47.2(2010):126-131.
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