期刊
ACS CATALYSIS
卷 10, 期 23, 页码 13800-13808出版社
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.0c04038
关键词
molecular imprinting; hydrolysis; artificial enzyme; selectivity; Michaelis-Menten; active site; biomimetic catalysis
资金
- NSF [CHE-1708526]
- NIGMS [R01GM138427]
Selective hydrolysis of carbohydrates is vital to the processing of these molecules in biology but has rarely been achieved with synthetic catalysts. The challenge is especially difficult because the catalyst needs to distinguish the inversion of a single hydroxyl and the alpha or beta glycosidic bonds that join monosaccharide building blocks. Here, we report synthetic glycosidase prepared through molecular imprinting within a cross-linked micelle. The nanoparticle catalyst resembles natural enzymes in dimension, water solubility, and a hydrophilic/hydrophobic surface-core topology. Its boronic acid functionalized active site binds its targeted glycoside substrate and an acid cofactor simultaneously, with the acidic group in close proximity to the exocyclic glycosidic oxygen. The hydrophobically anchored acid cofactor is tunable in acidity and causes selective cleavage of the targeted glycoside in mildly acidic water. Selectivity for both the glycan and the alpha/beta glycosidic bond can be rationally designed through the molecular imprinting process.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据