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Phase II Reactions: Methylation Reactions

Phase II Reactions: Methylation Reactions

Methylation is a phase II biotransformation process involving the attachment of a methyl group to a substrate. Enzymes known as methyltransferases orchestrate this reaction.
The mechanism of methylation unfolds in two stages. The first stage sees a methyltransferase enzyme facilitating the transfer of a methyl group from S-adenosylmethionine (SAM) to the substrate, forming S-adenosylhomocysteine (SAH). The second stage involves further metabolism of SAH into homocysteine, which can be recycled...

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Updated: Jan 17, 2026

Targeted DNA Methylation Analysis by Next-generation Sequencing

Targeted DNA Methylation Analysis by Next-generation Sequencing

Published on: February 24, 2015

dMSGB-IE:用于 (去) 甲基化热力学的计算突变扫描.

Zhendong Li¹, Lei Zheng^2,3, Yuqing Yang¹

¹Department of Fundamental Courses, Wuxi University of Technology, Wuxi 214121, China.

The Journal of chemical physics

|September 17, 2025

概括

了解基因素甲基化的理解

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科学领域:

生物化学生物化学
计算生物学计算生物学
表观遗传学在表观遗传学中,表观遗传学是指表观遗传学.

背景情况:

基因组 (去甲基化) 调节蛋白相互作用,影响基因调节.
甲基替代的多态性 (单,二,三甲基化) 复杂化了热力学分析.
表观遗传修饰对基因调节的影响需要了解热力学影响蛋白质结合.

研究的目的:

开发一种具有成本效益的自由能量技术,用于评估 (去) 甲基化对蛋白质-蛋白质结合亲和力的影响.
建立一个高效的计算工作流来预测 (去) 甲基化诱导的亲和力变化.
用 histone-reader 复合体验证新方法,并将其与结构预测工具集成.

主要方法:

开发了计算式 (去甲基化) 扫描,使用通用化Born和相互作用 (dMSGB-IE).
使用基于隐式溶剂的终点自由能量计算.
集成的dMSGB-IE与AlphaFold 3提供了全面的计算工作流.

主要成果:

使用蛋白质-蛋白质复合体进行dMSGB-IE的功能和可靠性的证明.
展示了该方法的效率,与更昂贵的化学自由能计算相美.
验证了集成建模工作流程的实际适用性和预测能力.

结论:

dMSGB-IE方法提供了一种高效可靠的方法来研究表观遗传修饰.
与AlphaFold 3的集成提供了一个强大的计算工具,用于预测 (去甲基化) 自由能量.
这种工作流程有助于更深入地了解分子层面上表观遗传调节机制.