数据独立获取以告知目标蛋白质组学试验的发展,使用三重四极质谱仪
Deanna L Plubell1, Eric Huang1, Sandra E Spencer1
1University of Washington, Department of Genome Sciences, Seattle, WA, 98195, USA.
bioRxiv : the preprint server for biology
|June 10, 2024
概括
这项研究表明,气相分化 (GPF) 数据独立获取 (DIA) 质谱数据可以有效地选择酸用于向蛋白质组学试验. 这种方法简化了选择反应监测 (SRM) 测定生物样本中的蛋白质,如脑脊液 (CSF) 的开发.
科学领域:
- 蛋白质组学是指蛋白质组学.
- 质谱测量质量谱测量
- 生物化学 生化学
背景情况:
- 针对性蛋白质组学试验对于敏感,高通量蛋白质分析至关重要.
- 由于矩阵效应,选择适当的作为蛋白质测量的代理具有挑战性.
- 目前的选方法需要进行广泛的测试和改进.
研究的目的:
- 为了证明数据独立获取 (DIA) 数据在质谱学中选择标的实用性.
- 开发一种可重复的选择性反应监测 (SRM) 试验,使用GPF-DIA数据中识别的.
- 测量脑脊液 (CSF) 中的98种阿尔茨海默病蛋白质.
主要方法:
- 使用的气相分化 (GPF) 狭窄窗口数据独立采集 (DIA) 质谱.
- 根据GPF-DIA数据的信号强度和可重现性选择的候选.
- 重新实施了一项现有测试的一部分,以测量CSF中的阿尔茨海默氏症蛋白质.
主要成果:
- 开发的SRM测定显示了与已公布数据相比的定量精度.
- 从GPF-DIA数据中选择,为测试开发提供了矩阵特定的信息.
- 从同一数据集中成功生成了针对非相关蛋白质的单独测试,证明了工作流的效率.
结论:
- GPF-DIA数据适用于选择标,简化了SRM测试的开发.
- 这种工作流允许高效的测试开发,而不需要额外的预先数据采集.
- 该方法促进了在CSF等生物矩阵中创建新的向蛋白质组学试验.
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