嗜温光杆状菌嗜温亚种XlNach(T) O-多糖的结构，含有一种新型分支单糖，3,6-二脱氧-4-C-[(S)-1,2-二羟乙基]-D-木糖己糖。
Structure of the O-polysaccharide of Photorhabdus temperata subsp. temperata XlNach(T) containing a novel branched monosaccharide, 3,6-dideoxy-4-C-[(S)-1,2-dihydroxyethyl]-d-xylo-hexose.
作者信息
Arbatsky Nikolay P, Shashkov Alexander S, Kirsheva Nadezhda A, Kondakova Anna N, Shaikhutdinova Rima Z, Ivanov Sergey A, Anisimov Andrey P, Knirel Yuriy A
机构信息
N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia.
State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, Russia.
出版信息
Carbohydr Res. 2015 Feb 11;403:202-5. doi: 10.1016/j.carres.2014.02.020. Epub 2014 Feb 28.
O-Polysaccharide was isolated from the lipopolysaccharide of an entomopathogenic bacterium Photorhabdus temperata subsp. temperata XlNach(T). Sugar analysis after full acid hydrolysis of the polysaccharide revealed D-glucose, D-mannose, D-galactose, D-GalNAc, and a branched monosaccharide, 3,6-dideoxy-4-C-[(S)-1',2'-dihydroxyethyl]-D-xylo-hexose (Sug), which was isolated as a 1,2'-anhydro furanose derivative. The following structure of the polysaccharide was established by 1D and 2D 1H and 13C NMR spectroscopy:
从昆虫致病细菌嗜温光杆状菌嗜温亚种XlNach(T)的脂多糖中分离出O-多糖。多糖经完全酸水解后的糖分析显示含有D-葡萄糖、D-甘露糖、D-半乳糖、D-氨基半乳糖，以及一种分支单糖3,6-二脱氧-4-C-[(S)-1',2'-二羟基乙基]-D-木糖己糖（Sug），其以1,2'-脱水呋喃糖衍生物形式分离得到。通过一维和二维氢谱及碳谱核磁共振波谱确定了该多糖的以下结构：
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