相关实验视频

Updated: Jun 26, 2025

Glycopeptide Capture for Cell Surface Proteomics

Glycopeptide Capture for Cell Surface Proteomics

Published on: May 9, 2014

一种严格选择性捕获和同时光标记N端甘氨酸的方法

Hongxu Liu^1,2, Harnimarta Deol², Ava Raeisbahrami²

¹College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China.

Journal of the American Chemical Society

|May 10, 2024

概括

研究人员开发了一种选择性标记N终端甘氨酸的新方法. 这种技术创建了一个光型的环,使含有甘氨酸的可以进行特定的下拉测试.

科学领域:

生物化学
有机化学
分析化学

背景情况:

选择性化学修饰氨基酸 (AAs) 在蛋白质组学中至关重要.
由于缺乏侧链,N端标签特别具有挑战性.
现有的方法通常与糖氨酸的特异性作斗争.

研究的目的:

开发一种用于选择性N端标记甘氨酸的新化学策略.
创造一种将甘氨酸与其他氨基酸区分开来的方法.
为了能够选择性地分离N终端甘氨酸.

主要方法:

在二甲和甘氨酸之间发生凝结反应.
形成一个imine中间体.
随后的分体化和分子内循环化产生光醇环.

主要成果:

该方法在甘氨酸的α-甲基基上实现了双重激活,使其与其他AAs区别开来.
形成一个光环,使检测和分析成为可能.
这种方法与含有反应性侧链的AA相容.
对N终端甘氨酸的选择性下拉测定得到了成功的证明.

结论:

已经建立了一种新的,选择性的N端甘氨酸标记方法.
这种技术为和蛋白质分析提供了有价值的工具,特别是用于识别含有甘氨酸的.
该方法可以从复杂的混合物中选择性地分离.

更多相关视频

A Quantitative Glycomics and Proteomics Combined Purification Strategy

A Quantitative Glycomics and Proteomics Combined Purification Strategy

Published on: March 8, 2016

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

相关概念视频

Tagging and Fusion Proteins

Tagging and Fusion Proteins

Proteins are involved in several cellular processes and biochemical reactions. Analyzing a specific protein of interest requires it to be isolated from the other proteins in the cell. This is achieved by overexpressing the specific gene in a suitable host to produce large quantities of the target protein. A tag or label is recombined with the gene to produce a fusion protein containing the target protein and the tag. The tags on these fusion proteins can then be used for easy detection and...