title: Structure of a polysaccharide from Urtica fissa determined by NMR spectra.
abstract: A polysaccharide, isolated and purified from the aqueous extract of nettle plant Urtica fissa, was found to consist of D-glucose and D-arabinose. Molecular weight was determined to be Mn 4140. The NMR experiments (¹H, ¹³C, ¹H--¹H COSY, TOCSY, HSQC, NOESY, and HMBC) revealed the structure as the following repeating unit: -->6)-α-D-Glcp-(1-->6)-α-D-Glcp-(1-->6)-β-D-Glcp--(1-->5)-β-D-Araf-(1-->3)-β-D-Glcp-(1-->
authors.affiliation: Beijing Institute of Radiation Medicine, Beijing 100850, China.
authors.forename: Yan-Liang
authors.initials: YL
authors.lastname: Wang
authors.forename: Li
authors.initials: L
authors.lastname: Li
authors.forename: Xiao-Chen
authors.initials: XC
authors.lastname: Cheng
authors.forename: Yu-Xin
authors.initials: YX
authors.lastname: Lu
authors.forename: Qing-Lin
authors.initials: QL
authors.lastname: Zhang
mesh_terms: D002240:Carbohydrate Sequence; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D019906:Nuclear Magnetic Resonance, Biomolecular / Q000379:methods*; D018517:Plant Roots / Q000737:chemistry; D011134:Polysaccharides / Q000737:chemistry* / Q000302:isolation & purification*; D027003:Urticaceae / Q000737:chemistry*
chemical_list: D004365:Drugs, Chinese Herbal; D011134:Polysaccharides