相关实验视频

Updated: Jan 16, 2026

Author Spotlight: Advancing Protein Glycosylation Research Using a Fully Automated System

Author Spotlight: Advancing Protein Glycosylation Research Using a Fully Automated System

Published on: June 28, 2024

一种合成的莱克,用于葡萄糖酸盐

Canjia Zhai¹, Chengkai Xu¹, Yunpeng Cui¹

¹Department of Chemistry, University of South Florida, 4202 E. Fowler Ave, Tampa, Florida 33620, United States.

ACS central science

|September 29, 2025

概括

研究人员开发了一种水溶性宏循环,MPNT2+·2Cl-有效地在水中结合葡萄糖. 这种合成的莱克具有很高的亲和力和选择性,可以灵敏地检测葡萄糖酸.

科学领域:

超分子化学超分子化学
碳水化合物识别碳水化合物识别
合成生物学合成生物学

背景情况:

由于溶剂竞争,在水中识别水友性碳水化合物是很困难的.
疏水效应是一个强大的驱动力,但不适用于爱水分子.
开发用于水性环境的合成讲氨酸是一个关键的挑战.

研究的目的:

设计和合成一种水溶性宏循环,用于选择性地在水中识别葡萄酸盐.
调查新型受体的结合亲和力,选择性和传感能力.
建立一种可通用的战略,用于在水溶液中制造合成莱克.

主要方法:

设计和合成一个四乳宏循环 (MPNT2+·2Cl-).
在水中进行约束性研究以确定亲和力和选择性.
使用单晶X射线分析,DFT计算和IGMH分析进行表征.
使用循环二重体的手术感应.

主要成果:

MPNT²⁺·2Cl^-对水中的葡萄酸盐具有很高的结合亲和力 (103,000 M^-1).
该受体对结构相似的碳水化合物表现出极好的选择性.
结合诱导的循环二元化信号使得可灵敏地检测出葡萄糖酸.
详细的结构分析揭示了推动复合体形成的关键相互作用 (键,C-H···O,C-H···π).

结论:

MPNT²⁺·2Cl^-是一种高效的合成莱克,用于在水性介质中识别葡萄糖酸盐.
这项研究提出了一种设计合成受体的多功能策略,用于性碳水化合物.
这项工作为新的分子传感器和对生物相关的阳离子糖的诊断工具铺平了道路.

更多相关视频

A Lectin HPLC Method to Enrich Selectively-glycosylated Peptides from Complex Biological Samples

A Lectin HPLC Method to Enrich Selectively-glycosylated Peptides from Complex Biological Samples

Published on: October 1, 2009

Bioinformatics Resources for the Study of Glycan-Mediated Protein Interactions

Bioinformatics Resources for the Study of Glycan-Mediated Protein Interactions

Published on: January 20, 2022

相关概念视频

Oligosaccharide Assembly

Oligosaccharide Assembly

Protein glycosylation starts in the ER lumen and continues in the Golgi apparatus. Glycosyltransferases catalyze the addition of sugar molecules or glycosylation of proteins. Usually, these enzymes add sugars to the hydroxyl groups of selected serine or threonine residues to form O-linked glycans or the amino groups of asparagine residues to form N-linked glycans. Different positions on the same polypeptide chain can contain differently linked glycans.
Multiple sugar molecules that may or may...

Selectins

Selectins

Cell adhesion is an essential aspect of multicellularity. While stable cell interactions usually occur between cells of the same type, transient cell interactions occur between cells of different tissue types, such as between neutrophils and endothelial cells. Selectins are one class of cell adhesion molecules (CAMs) that bind carbohydrate ligands to form transient cell adhesion. They are rod-like proteins with a long extracellular part of variable length ending with the lectin domain,...

Phase II Reactions: Glucuronidation

Phase II Reactions: Glucuronidation

Glucuronidation, a pivotal phase II biotransformation process, involves the coupling of glucuronic acid to a drug or xenobiotic. Given its widespread occurrence and critical role in drug metabolism, it's considered the most crucial phase II reaction. It enhances the water solubility of substances, aiding their expulsion from the body. The driving force behind these reactions is a group of enzymes known as UDP-glucuronosyltransferases (UGTs). UGTs facilitate the transfer of a glucuronic acid...

Proteoglycans

Proteoglycans

Glycans, a class of complex heterogeneous molecules, can be covalently attached to proteins to form glycosylated proteins that regulate various physiological and pathological processes. Glycosylated proteins or glycoproteins comprise N-linked and O-linked oligosaccharides. O-glycosylation is the most common type of protein glycosylation. Here, glycans attach to the oxygen atom of the hydroxyl groups of Serine or Threonine residues. O-linked glycosylation occurs later in protein processing,...