使用施罗丁格的Maestro和Glide预测对与结直肠癌相关的蛋白质的γ-托科特里诺和δ-托科特里诺结合的协议
Ali Qusay Khalid1, Saatheeyavaane Bhuvanendran1, Kasthuri Bai Magalingam1
1Food as Medicine Research Strength, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, 47500 Bandar Sunway, Malaysia.
STAR protocols
|October 19, 2025
概括
这项研究概述了一个分子建模协议,以预测玛-托克利诺 (γT3) 和三角-托克利诺 (δT3) 如何与结直肠癌蛋白结合. 预计delta-tocotrienol会显示出稍微更强的结合亲和力.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 计算化学的计算化学
背景情况:
- 结肠直肠癌 (CRC) 是一个重要的全球健康问题.
- 托克醇,特别是-托克醇 (γT3) 和三角-托克醇 (δT3),是维生素E的异构体,具有潜在的抗癌特性.
- 了解γT3和δT3与CRC相关蛋白质的分子相互作用对于药物发现至关重要.
研究的目的:
- 建立一个详细的计算协议来预测γT3和δT3与结直肠癌相关蛋白质的结合亲和力.
- 为癌症研究中的分子建模研究提供可复制的工作流.
- 为了比较 γT3 和 δT3 预测的结合强度与目标蛋白.
主要方法:
- 使用施罗丁格的Maestro和Glide软件进行分子对接模拟.
- 接下来是蛋白质制备,配体加工和受体网格生成的详细步骤.
- 结合亲和度以kcal/mol计算,并生成相互作用地图.
主要成果:
- 该协议成功地为γT3和δT3.3生成了绑定亲和关系和相互作用图.
- 据预测,与γT3.3相比,δT3的结合亲和力略强一些.
- 工作流包括检查点和故障排除指南.
结论:
- 本方案提供了一个可靠的框架,用于预测CRC中的托克醇蛋白相互作用.
- 这种计算方法可以帮助确定涉及γT3和δT3.3的潜在治疗策略.
- 这项研究强调了δT3作为结直肠癌治疗中进一步研究的候选者的潜力.
相关概念视频
The Equilibrium Binding Constant and Binding Strength
The equilibrium binding constant (Kb) quantifies the strength of a protein-ligand interaction. Kb can be calculated as follows when the reaction is at equilibrium:
Protein-Drug Binding: Determination Methods
Determining protein-drug binding can be achieved through indirect and direct methods, each providing valuable insights into the interaction between proteins and drugs.
Indirect methods involve isolating the bound drug from its free form in biological samples such as blood, serum, or plasma. These techniques aim to measure the percentage of drugs bound to proteins. Equilibrium dialysis is a commonly used method where the free drug concentration at equilibrium is measured by separating the bound...
Indirect methods involve isolating the bound drug from its free form in biological samples such as blood, serum, or plasma. These techniques aim to measure the percentage of drugs bound to proteins. Equilibrium dialysis is a commonly used method where the free drug concentration at equilibrium is measured by separating the bound...


