[细菌的抗原多糖 38. 青枯假单胞菌 ICMP 7942 和 ICMP 8169 的 O 抗原结构]

[Antigenic polysaccharides of bacteria 38. Structure of O-antigens of Pseudomonas solanacearum ICMP 7942 and ICMP 8169].

作者信息

Shashkov A S, Kocharova N A, Knirel' Iu A, Varbanets L D, Moskalenko N V, Zdokhliĭ A V

出版信息

Bioorg Khim. 1993 Nov;19(11):1089-94.

Abstract

The structures I and II were established for the O-antigens of Pseudomonas solanacearum ICMP 7942 and ICMP 8169, respectively, by means of NMR-spectroscopy, including 2D homonuclear shift-correlated spectroscopy (COSY), rotating-frame NOE spectroscopy (ROESY) and heteronuclear 13C, 1H multiquantum correlation spectroscopy (HMQC). In the polysaccharide of the ICMP 8169 strain substitution of the main chain by the xylose residue is non-stoichiometric, i.e. this antigen contains also the repeating units of the polysaccharide of the ICMP 7942 strain (the ratio II: I is approximately 3:1). [formula: see text]

摘要

通过核磁共振光谱法，包括二维同核位移相关光谱法（COSY）、旋转框架核Overhauser效应光谱法（ROESY）和异核13C、1H多量子相关光谱法（HMQC），分别为青枯假单胞菌ICMP 7942和ICMP 8169的O抗原建立了结构I和II。在ICMP 8169菌株的多糖中，木糖残基对主链的取代是非化学计量的，即该抗原还包含ICMP 7942菌株多糖的重复单元（II:I的比例约为3:1）。[分子式：见正文]

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