碳水化合物芯片用于研究高通量碳水化合物-蛋白质相互作用
Sungjin Park1, Myung-ryul Lee, Soon-Jin Pyo
1Department of Chemistry, Yonsei University, Seoul 120-749, Korea.
Journal of the American Chemical Society
|April 15, 2004
概括
这项研究引入了一种新的高通量碳水化合物芯片,用于分析碳水化合物-蛋白质相互作用. 开发的方法有效地固定碳水化合物,使选择性莱克结合和亲和分析成为可能.
科学领域:
- 碳水化合物的化学成分
- 生物分子相互作用
- 葡萄糖生物学 葡萄糖生物学
背景情况:
- 碳水化合物与蛋白质的相互作用在生物过程中至关重要.
- 研究这些相互作用的传统方法缺乏高通量能力.
- 需要开发新的工具来进行碳水化合物-蛋白质识别的高通量分析.
研究的目的:
- 开发一种新的高通量工具,用于监测碳水化合物-蛋白质相互作用.
- 创建碳水化合物芯片,以有效分析这些生物分子识别事件.
主要方法:
- 碳水化合物微阵列的制备,通过在醇衍生玻璃幻灯片上固定马利米德结合碳水化合物.
- 使用制造的碳水化合物微阵列进行莱克结合实验.
- 制造碳水化合物芯片,使用溶液相平行和酶性糖化来产生各种碳水化合物探针,包括sialyl Le (x).
主要成果:
- 碳水化合物具有独特的结构特征,可选择性地与相应的单蛋白结合.
- 通过微阵列与基于溶液的测定相关的微阵列来确定相对的结合亲和度.
- 通过确定IC(50) 值来实现莱克-碳水化合物结合 afinities 的定量分析.
结论:
- 碳水化合物晶片可以通过化物合碳水化合物在醇涂层玻璃幻灯片上的共价固定来有效地制备.
- 这些碳水化合物芯片适用于碳水化合物-蛋白质相互作用的高通量分析.
- 开发的方法为推进糖生物学研究和理解生物分子识别提供了有价值的工具.
相关概念视频
What are Carbohydrates?
Overview
Carbohydrate Digestion
Carbohydrate digestion and metabolism break down simple and complex carbohydrates from food into saccharides (i.e., sugars) for the body to use as energy. Carbohydrate digestion starts in the mouth during mastication, or chewing. The masticated carbohydrates remain intact in the stomach. Digestion resumes in the duodenum of the small intestine, where pancreatic alpha-amylase and brush border enzymes of the microvilli convert complex carbohydrates to monosaccharides. Finally, the monosaccharides...
Sugars as Energy Storage Molecules
Sugar (a simple carbohydrate) metabolism (chemical reactions) is a classic example of the many cellular processes that use and produce energy. Living things consume sugar as a major energy source because sugar molecules have considerable energy stored within their bonds. Consumed carbohydrates have their origins in photosynthesizing organisms like plants. During photosynthesis, plants use the energy of sunlight to convert carbon dioxide gas into sugar molecules, like glucose. Because this...
Introduction to Carbohydrates
Carbohydrates, proteins, and fats are the primary macronutrients in the human diet. However, carbohydrates are the most favored source of energy in the body. They can be found in a wide variety of foods, including whole grains, fruit, and vegetables, in various forms, such as sugars, starch, and dietary fiber. Based on their structure, carbohydrates are classified into three main classes— monosaccharides, disaccharides, and polysaccharides. The body's cells can only utilize simple...
Sugars as Energy Storage Molecules
Sugar (a simple carbohydrate) metabolism (chemical reactions) is a classic example of the many cellular processes that use and produce energy. Living things consume sugar as a major energy source because sugar molecules have considerable energy stored within their bonds. Consumed carbohydrates have their origins in photosynthesizing organisms like plants. During photosynthesis, plants use the energy of sunlight to convert carbon dioxide gas into sugar molecules, like glucose. Because this...
Overview of Carbohydrate Metabolism
Carbohydrate metabolism is a fundamental biochemical process that ensures a constant supply of energy to living cells. The most important carbohydrate is glucose, which can be broken down via glycolysis to enter into the Krebs cycle and eventually lead to the production of ATP through oxidative phosphorylation.
Glucose transport into cells is facilitated by a family of transport proteins called GLUT (Glucose Transporters). GLUT4 is the primary glucose transporter for insulin-stimulated glucose...
Glucose transport into cells is facilitated by a family of transport proteins called GLUT (Glucose Transporters). GLUT4 is the primary glucose transporter for insulin-stimulated glucose...


