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Structural characterization of oligosaccharides from free radical depolymerized fucosylated glycosaminoglycan and suggested mechanism of depolymerization
Chen,Ru; Yin,Ronghua; Li,Shanni; Pan,Ying; Mao,Hui; Cai,Ying; Lin,Lisha; Wang,Weili; Zhang,Taocui; Zhou,Lutan; Gao,Na; Luo,Xiaodong; Zhao,Jinhua
2021
发表期刊CARBOHYDRATE POLYMERS
ISSN0144-8617
卷号270页码:118368
摘要Free radical depolymerization is a common method in structural analysis of polysaccharides, the major challenge is the analysis of the cleavage site and characterization of newly formed ends in this reaction. Here, a fucosylated glycosaminoglycan from H. fuscopunctata (HfFG) was depolymerized by H2O2 and a series of oligosaccharides were purified and their structures were elucidated. For non-reducing ends of the trisaccharides were intact GalNAc(4S6S), the cleavage site should mainly be the beta(1,3) linkages between GlcA and GalNAc in the backbone of FG. Meanwhile, the reducing ends of the disaccharides and trisaccharides were almost dicarboxylic acid derivatives of GlcA, possibly arising from oxidative breaking of the C-C bond of GlcA at the reducing ends. In addition, glycosidic linkages in D-GalNAc-beta(1,4)-D-GlcA and L-FucS-alpha(1,3)-D-GlcA located at the reducing end could be cleaved, and the released GalNAc(4S6S) were oxidized to N-acetylgalactosaminic acid.
关键词Fucosylated glycosaminoglycan Free radical depolymerization Chemical structure Oligosaccharide NMR INTRINSIC TENASE COMPLEX ANTICOAGULANT ACTIVITIES SEA-CUCUMBER CHONDROITIN SULFATE PHYSICOCHEMICAL CHARACTERISTICS FACTOR XASE POLYSACCHARIDES DERIVATIVES HEPARIN
DOI10.1016/j.carbpol.2021.118368
WOS记录号WOS:000685075400008
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文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/73419
专题中国科学院昆明植物研究所
作者单位1.Yunnan Univ, Sch Chem Sci & Technol, Key Lab Med Chem Nat Resource, Minist Educ & Yunnan Prov, Kunming 650091, Yunnan, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, State Key Lab Phytochem & Plant Resources West Ch, Kunming 650201, Yunnan, Peoples R China
3.South Cent Univ Nationalities, Sch Pharmaceut Sci, Wuhan 430074, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Yunnan Inst Tradit Chinese Med & Mat Med, Kunming 650223, Yunnan, Peoples R China
6.Guangxi Inst Tradit Med & Pharmaceut Sci, Nanning 530022, Peoples R China
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Chen,Ru,Yin,Ronghua,Li,Shanni,et al. Structural characterization of oligosaccharides from free radical depolymerized fucosylated glycosaminoglycan and suggested mechanism of depolymerization[J]. CARBOHYDRATE POLYMERS,2021,270:118368.
APA Chen,Ru.,Yin,Ronghua.,Li,Shanni.,Pan,Ying.,Mao,Hui.,...&Zhao,Jinhua.(2021).Structural characterization of oligosaccharides from free radical depolymerized fucosylated glycosaminoglycan and suggested mechanism of depolymerization.CARBOHYDRATE POLYMERS,270,118368.
MLA Chen,Ru,et al."Structural characterization of oligosaccharides from free radical depolymerized fucosylated glycosaminoglycan and suggested mechanism of depolymerization".CARBOHYDRATE POLYMERS 270(2021):118368.
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