用上下和自下而上的质谱法对蛋白形后翻译性修饰的表征与注释相结合
Wenrong Chen1, Zhengming Ding2, Yong Zang3,4
1Department of BioHealth Informatics, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202, United States.
Journal of proteome research
|September 20, 2023
概括
本研究介绍了PTM-TBA,这是一个软件管道,它结合了自上而下的和自下而上的质谱 (MS) 与PTM注释,以识别和定位蛋白质形式的翻译后修饰 (PTM).
科学领域:
- 蛋白质组学是指蛋白质组学.
- 生物化学 生化学
- 生物信息学是一种生物信息学.
背景情况:
- 由遗传变异和翻译后修饰 (PTMs) 产生的蛋白形对细胞功能至关重要.
- 质谱法 (MS) 是PTM调查的关键,上下和自下而上的方法提供了互补的见解.
- 整合多样化的数据源可以提高PTM的识别和表征.
研究的目的:
- 开发和介绍PTM-TBA,这是一个用于PTM表征的新型软件管道.
- 整合自上而下的MS,自下而上的MS和PTM注释以进行全面分析.
- 提高PTM识别和定位在蛋白形体中的准确性和灵敏度.
主要方法:
- 开发PTM-TBA软件管道的发展.
- 将 PTM-TBA 应用到 SW480 单元数据中,使用上向下和下向上 MS 的技术三重复制.
- 使用UniProt注释进行PTM验证.
主要成果:
- PTM-TBA集成了自上而下的和自下而上的MS数据与PTM注释.
- 对SW480细胞数据的分析确定了2000个从上向下转移的质量转移.
- PTM-TBA使用自下而上的MS和UniProt注释验证了435个质量转移.
结论:
- 通过集成多种数据类型,PTM-TBA有效地识别和定位PTM.
- 综合的MS方法提高了PTM特征的准确性.
- 该管道为蛋白质形状分析和PTM发现提供了强大的解决方案.
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