Katzenellenbogen E, Romanowska E
Eur J Biochem. 1980 Dec;113(1):205-11. doi: 10.1111/j.1432-1033.1980.tb06157.x.
The core structure of Shigella flexneri serotype 6 has been investigated. The methods used in these studies involved methylation analysis, periodate oxidation, Smith degradation and enzymic modifications of core oligosaccharides isolated from two smooth strains and four rough mutants. As a result the complete core region was established (Formula: see text) where DGalp = D-galactopyranose, DGlcp = D-glucopyranose, L alpha DHepp = L-glycero-D-mannoheptapyranose, dOclA = 3-deoxy-D-manno-octulosonic, DGlcNp = 2-amino-2-deoxy-D-glucopyranose and P--PEtN = pyrophosphorylethanolamine (partially substituted). In the R mutants examined two types of mutation have been observed: (1) defect in heptose region (lack of D-glucosamine) or (2) defects in hexose region of the core.
福氏志贺菌6型的核心结构已被研究。这些研究中使用的方法包括甲基化分析、高碘酸盐氧化、史密斯降解以及对从两个光滑菌株和四个粗糙突变体中分离出的核心寡糖进行酶促修饰。结果确定了完整的核心区域（化学式：见正文），其中DGalp = D-吡喃半乳糖，DGlcp = D-吡喃葡萄糖，LαDHepp = L-甘油-D-甘露庚糖，dOclA = 3-脱氧-D-甘露辛酮糖酸，DGlcNp = 2-氨基-2-脱氧-D-吡喃葡萄糖，P--PEtN = 焦磷酸乙醇胺（部分取代）。在所检测的R突变体中观察到两种类型的突变：（1）庚糖区域缺陷（缺乏D-葡萄糖胺）或（2）核心己糖区域缺陷。
