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糖辅助组辅助以多样性为导向的酶模块化合成0系列甘化甘的酶模块化合成

Jinfeng Ye^1,2,3, Kan Zhong^1,2, Zhi-Fei Hu^1,2

¹Key Laboratory of Marine Drugs of Ministry of Education, Shandong Key Laboratory of Glycoscience and Glycotherapeutics, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China.

Angewandte Chemie (International ed. in English)

|December 23, 2024

概括

研究人员开发了一种新型的酶方法来合成复杂的0系列化物. 这种方法克服了以前的局限性,通过使用酸作为临时辅助组,使得可以创建扩展的化物结构.

科学领域:

葡萄糖生物学葡萄糖生物学
酶合成酶的合成
碳水化合物化学碳水化合物化学

背景情况:

扩展的0系列类酶的酶合成受到了关键酶如β1-4-N-乙烯基酸氨基转移酶无法直接延长糖链的限制.
现有的方法难以创建具有延伸脊柱的复杂的氏体结构.

研究的目的:

开发一种新型的酶策略,用于合成扩展的0系列化物核心结构.
为了克服Campylobacter jejuni β1-4-N-乙烯基银胺基转移酶 (CjCgtA) 的基质特异性限制.
为了生成复杂的0系列化物的一系列图书馆.

主要方法:

酶介绍酸作为辅助组,以促进甘氨酸链的延长.
使用来自Photobacterium damselae (Pd2,6ST) 的细菌α2-6-sialyltransferase,具有特定的受体基质特性.
采用序列酶模块组件组件来实现化体结构的多样化.
在适当的阶段使用sianlidase去除 sialic 酸辅助组.

主要成果:

通过克服CjCgtA的局限性,成功合成了扩展的0系列类固醇核心结构.
鉴定了一种细菌基转移酶 (Pd2,6ST),它对0系列类核具有意想不到的特异性.
通过模块化组装生成了31个复杂的0系列类甘氨酸库.
在复杂的甘氨酸合成中证明了酸作为可移除的辅助组的实用性.

结论:

开发的酶策略使得以前无法获得的扩展的0系列化物合成成为可能.
使用酸作为辅助组是克服酶特异性挑战的可行方法.
这种方法提供了一个强大的平台,用于生成多样化和复杂的化体结构,以便进一步研究.

关键词:

团聚物质化物.葡萄糖酶化是什么? 葡萄糖酶化是什么?葡萄糖转移酶的使用方法有机糖类 (Oligosaccharides) 是一种糖类.

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