相关实验视频
Updated: Jan 17, 2026

12:00
A Practical Guide to Phylogenetics for Nonexperts
Published on: February 5, 2014
36.0K
MSA 类标志:基于一个多个序列对齐的用户定义序列类的自动序列标志生成的Web服务器
Mauricio F González-Reyes1, Fabio Durán-Verdugo1, Alejandro Valdés-Jiménez2
1Escuela de Ingeniería Civil en Bioinformática, Facultad de Ingeniería, Campus Talca, Universidad de Talca, Talca 3460000, Chile.
Bioinformatics advances
|September 24, 2025
概括
MSA Class Logos是一个免费的网络工具,用于在多个序列对齐 (MSA) 中可视化氨基酸频率. 它允许用户在不同的序列类中比较序列标志,有助于识别保存的残留物.
科学领域:
- 生物信息学是一种生物信息学.
- 计算生物学 计算生物学
- 结构生物学 结构生物学
背景情况:
- 序列标志对于可视化氨基酸频率和多重序列对齐 (MSA) 中的保存模式至关重要.
- 现有的工具往往缺乏同时比较不同序列组的标志的能力.
研究的目的:
- 引入MSA Class Logos,一个用于同时在线探索和比较来自多个序列组的序列标志的Web服务器.
- 为用户提供可下载的氨基酸频率数据,以各种格式进行进一步分析.
主要方法:
- MSA Class Logos 网络服务器允许用户将序列分组为类,并为每个类生成标志.
- 整个MSA和用户定义的类的标志在平行选项卡中显示,以便轻松进行比较.
- 氨基酸频率可以以表格 (CSV) 或图形表示形式下载.
主要成果:
- MSA 类标志方便在不同的序列类中对序列标志进行视觉比较.
- 可以识别出特定类的保存残留物,这些残留物只存在于进化上遥远或功能上不同的蛋白质群体中.
- 序列标志段可以在SVG格式下载.
结论:
- MSA Class Logos提供了一个用户友好的平台,用于分析和比较序列标志,而不需要编程技能.
- 该工具有助于识别特定类别的保存残留物,提高对蛋白质序列-结构-功能关系的理解.
相关概念视频
Modern Molecular Taxonomy
590
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
590
Multi-species Conserved Sequences
4.6K
Next-generation sequencing technologies have created large genomic databases of a variety of animals and plants. Ever since the human genome project was completed, scientists studied the genome of primates, mammals, and other phylogenetically distant living beings. Such large-scale studies have provided new insights into the evolutionary relationship between organisms.
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
4.6K
Peptide Identification Using Tandem Mass Spectrometry
8.1K
Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
8.1K

