结果SED的空间结构与其它肠毒素超抗原相似，具有两个结构域：氨基末端结构域和羧基末端结构域。
Results the three dimensional structure of sed, similar to that of other enterotoxin superantigens, was composed of two domains: amino terminal domain and carboxyl terminal domain.
通过上述晶体结构中配位键长键角的分析，得到了一个行之有效的标准，判断羧基与中心金属离子是单齿配位还是螯合配位。
A new criterion to decide whether the carboxy group coordinating to the metallic ion in mono or bi dentate-fashion in an ambiguous situation, base on coordination bond distances and angles.
配合物中，结晶水、未配位磺酸基氧以及未配位的羧基氧之间通过氢键相连，形成三维网状结构。
In the complex, crystaled water, uncoordinated sulfonic oxygen, and uncoordinated carboxylic oxygen are connected by hydrogen bonds so as to form a three dimensional network structure.
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