用于微阵列应用的糖聚合物的合成,通过将降解糖结合到聚烯化) 脚手架
Kamil Godula1, Carolyn R Bertozzi
1Department of Chemistry, University of California, Berkeley, California 94720, USA.
Journal of the American Chemical Society
|July 9, 2010
概括
这项研究提出了一种新的方法,通过将碳水化合物与聚合物支架相连接来制造糖聚合物. 这种多用途的甘油聚合物合成使得研究碳水化合物-乳酸蛋白相互作用成为可能.
科学领域:
- 碳水化合物化学 碳水化合物化学
- 聚合物科学 聚合物科学
- 葡萄糖生物学 葡萄糖生物学
背景情况:
- 开发合成甘油聚合物对于理解涉及碳水化合物的生物过程至关重要.
- 现有的糖聚合物合成方法可能很复杂,缺乏多功能性.
研究的目的:
- 建立一个通用和高效的合成策略,用于制造多种多样化的甘油聚合物.
- 为了证明这些甘油聚合物的实用性,研究碳水化合物-乳酸蛋白相互作用.
主要方法:
- 通过RAFT聚合,合成了一种聚烯酸化 (PAH) 支架.
- 降解型甘氨酸通过稳定的循环N-糖化物形成与PAH支架结合.
- 甘油聚合物被固定在玻璃幻灯片上进行微阵列分析.
主要成果:
- 从简单的糖到复杂的寡糖,各种各样的甘氨酸被成功结合.
- 结合是高效的,立体选择性的,并在温和的条件下进行.
- 甘聚合物微阵列显示基于甘结构的特定结合于莱克.
结论:
- 开发的方法为合成复杂的甘油聚合物提供了一个多功能平台.
- 这种方法有助于研究生物系统中的甘氨酸识别.
- 该方法允许轻松制备具有生物学相关表位的糖聚合物.
相关概念视频
01:24Oligosaccharide 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...
Multiple sugar molecules that may or may...
01:25Protein Glycosylation
Glycosylation, the most common post-translational modification for proteins, serves diverse functions. Adding sugars to proteins makes the proteins more resistant to proteolytic digestion. Glycosylated proteins can act as markers and receptors to promote cell-cell adhesion. Additionally, they have many essential quality control functions in the cell, such as correct protein folding and facilitating transport of misfolded proteins to the cytosol, which can be degraded.
Glycosylation occurs in...
Glycosylation occurs in...