RMTLysPTM:通过对序列的深度分析来识别多种类型的氨酸PTM位点
1College of Information Engineering, Shanghai Maritime University, Shanghai 201306, People's Republic of China.
Briefings in bioinformatics
|December 9, 2023
概括
本研究介绍了RMTLysPTM,这是一种用于识别多种类型的氨酸翻译后修饰 (PTM) 的新型计算模型. 该模型准确地预测了蛋白质中的乙化,化,甲基化和化位点.
科学领域:
- 生物信息学是一种生物信息学.
- 分子生物学分子生物学
- 计算生物学 计算生物学
背景情况:
- 翻译后修饰 (PTMs) 对细胞过程至关重要.
- 从蛋白质序列中识别PTM位点是生物信息学中的一个重大挑战.
- 现有的计算方法通常集中在单一的PTM类型上,限制了它们的范围.
研究的目的:
- 开发一个多标签分类模型来识别多个素 (K) PTM位点.
- 确定四种特定的氨酸PTM类型:乙化,化,甲基化和化.
主要方法:
- 开发了一个多标签分类模型,RMTLysPTM.
- 环绕 lysine 位点的片段被用作输入.
- 特性工程涉及分析片段内2残留物的分布.
主要成果:
- 在交叉验证测试中,RMTLysPTM表现非常高.
- 该模型在独立测试数据集上表现出强大的概括能力.
- 在预测 lysine PTM 类型方面,RMTLysPTM 的表现优于之前的模型和常用方法.
结论:
- RMTLysPTM有效地识别了多种类型的氨酸PTM.
- 与现有方法相比,开发的模型提供了优越的性能和通用性.
- 在http://119.3.127.138/. . 的网站上提供RMTLysPTM的Web服务器.
相关概念视频
Covalently Linked Protein Regulators
6.8K
Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein....
These groups modify specific amino acids in a protein....
6.8K
Histone Modification
13.3K
The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone...
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone...
13.3K
Ligand Binding and Linkage
4.8K
Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked. In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence...
4.8K
Conserved Binding Sites
4.2K
Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally...
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally...
4.2K


