期刊
CARBOHYDRATE RESEARCH
卷 339, 期 16, 页码 2657-2665出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carres.2004.09.006
关键词
Pseudomonas stutzeri OX1; lipopolysaccharide; NMR spectroscopy; MALDI-TOF MS
A minor oligosaccharide fraction was isolated after complete de-acylation of the lipooligosaccharide extracted from Pseudomonas stutzeri OX1. The full structure of this oligosaccharide was obtained by chemical degradation, NMR spectroscopy and MALDI-TOF MS spectrometry. These experiments showed the presence of two novel oligosaccharides (OS1 and OS2): [GRAPHICS] where R = (S)-Pyr(-->4,6) in OS1 and alpha-Rha-(1-->3) in OS2. All sugars are D-pyranoses, except Rha, which is L-pyranose. Hep is L-glycero-D-manno-heptose, Kdo is 3-deoxy-D-manno-oct-2-ulosonic acid, Pyr is pyruvic acid, P is phosphate. (C) 2004 Elsevier Ltd. All rights reserved.
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