查询词典 glycosyl

These results, together with the structural elucidation of the purified polysaccharides described above, indicate that the α-glucans in G. lucidum don't have any remarkable immunomdulating activities, but the effects of β-glucans on immune system depend on their glycosyl residue linkages and sugar chain conformation. Further, it is concluded that the 1, 3-linked backbone, relative lower side chain size and substitution, and a high-organized helical structure are the beneficial structural features for the immunostimulatory activity of β-D-glucans. However, the 1, 6-linked backbone may induce the immunosuppressive effect of β-D-glucans.

结合各纯化多糖的结构与构象分析的结果，可以得出以下结论：赤灵芝中的α-型葡取糖不具有显著的免疫调节作用，而β-型葡聚糖的免疫作用则与其糖链结构和糖链构象有密切关系，1，3-连接的主链，较低的分支取代率和较短的支链长度及高度有序的螺旋结构是β-型葡聚糖发挥免疫增强功能的有利结构因素，相反，1，6-连接的主链却可能引起多糖的免疫抑制作用。

L-fucose, as raw material, protected with ortho ester, synthesized the glycosyl acceptor 60, 76, thioglycoside doner 57、61、62, fluorglycoside 65、66 and Schimidt doner 68, 70 in a simple and efficient way.

本文从L-岩藻糖出发，以原酸酯保护的方法简单高效的合成了具有合适保护基的糖基受体60、76，糖基供体57、61、62、65、66、68及70。

Studies on four novel classes of glycosyl donors for the stereoselective synthesis of 2-S-2-deoxy-β-glycosides, via 1, 2-migration and concurrent glycosidation.

一、发展了四种糖基给体，通过硫的1，2—迁移，并同时进行糖苷化的方法，立体专一的合成了一些2位硫代β糖苷。

There is a hypothesis that paroxysmal nocturnal hemoglobinuria hematopoitic stem cells are resistant to the cytotoxic effect of T cells because they lack glycosyl phosphatidylinositol2linked proteins.

核心提示：摘要阵发性睡眠性血红蛋白尿症克隆可能由于缺乏GPI 锚连蛋白而逃脱免疫攻击，形成生长优势。

Several glycosyl phosphate and phosphonates, as inhibitors of AGPase, were synthesized.In the synthesis of β〓-6 linked oligosaccharide phosphonates, A new method was developedfor preparation of 〓,6-〓-di-acetyl-2,3,4-〓-tri-benzyl-D-hexoses by acetylation of benzylatedmethyl glycosides in high yield under the conditions of 〓 and cat.〓.

合成了一些磷酸酯及其类似物作为嗜热AGPase的抑制剂，在研究β 1-6连接的寡糖膦酸酯的合成中，发现了制备1，6-〓-二乙酰基-苄基保护糖的新方法：苄基保护的糖苷在醋酐和催化量的硫酸作用下，在0℃反应进行7-10 min，可以选择性、高收率地得到此化合物。

And physicochemical procedures (molecular weight measurement, viscosity analysis, etc.). All glycans (polysaccharides and peptidoglycan) were found as glucans, but each glucan has its specific sugar chain structure, including glycosyl reside linkages and sugar chain conformation.

结构研究表明，除PSG6为肽多糖以外，其他六个多糖均为由单一葡萄糖构成的葡聚糖，但各多糖在糖残基连接方式，糖苷键构型，支链的长度、取代度与在主链上的分布及糖链构象上有显著差异。

Homology analysis demonstrated that, McChi5 protein, which contained a conserved domain of family 18 glycosyl hydrolyse, had the sequence similar to tabacco class V chitinases, several putative chitinases and chitinase-like proteins of Arabidopsis thiliania , and some chitinases from mammals, insects and bacteria.

同源性分析表明，McChi5蛋白与烟草V类几丁酶、拟南芥的推测几丁酶和类几丁酶蛋白、以及哺乳动物和细菌的一些几丁酶有序列相似性，并具有第18家族糖基水解酶的保守域。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。