两株粘质沙雷氏菌内毒素中寡糖核心的分离与组成
Isolation and composition of oligosaccharide cores from endotoxins of two Serratia marcescens strains.
作者信息
Wang C S, Burngs R K, Alaupovic P
出版信息
J Bacteriol. 1974 Nov;120(2):990-3. doi: 10.1128/jb.120.2.990-993.1974.
The oligosaccharide cores isolated from the acetic acid hydrolysates of endotoxins from Serratia marcescens 08 and Serratia marcescens Bizio were analyzed for their sugar composition. The intact oligosaccharide core from S. marcescens 08 consisted of 2-keto-3-deoxyoctonate, d-glycero-d-mannoheptose, l-glycero-d-mannoheptose, d-glucose, d-galactose, and d-glucosamine in a molar ratio of 2:1:5:3:1:3 and that from S. marcescens Bizio consisted of the same sugar components in a molar ratio of 2:1:5:5:1:2. This result indicates that endotoxins from S. marcescens genus may contain more than one structural type of oligosaccharide core. Both oligosaccharide cores also differ in their chemical compositions from cores of other Enterobacteriaceae.
对从粘质沙雷氏菌08和粘质沙雷氏菌比齐奥内毒素的乙酸水解产物中分离出的寡糖核心进行了糖组成分析。来自粘质沙雷氏菌08的完整寡糖核心由2-酮-3-脱氧辛糖酸、D-甘油-D-甘露庚糖、L-甘油-D-甘露庚糖、D-葡萄糖、D-半乳糖和D-葡萄糖胺组成，摩尔比为2:1:5:3:1:3，而来自粘质沙雷氏菌比齐奥的完整寡糖核心由相同的糖成分组成，摩尔比为2:1:5:5:1:2。该结果表明，粘质沙雷氏菌属的内毒素可能包含不止一种结构类型的寡糖核心。这两种寡糖核心在化学组成上也与其他肠杆菌科的核心不同。
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