超Plex-TMT:通过直角蛋白质酶裂隙扩展同位体超复合.
Theodoros I Roumeliotis1, Fernando J Sialana1, Jenny Ho2
1The Institute of Cancer Research, Chester Beatty Laboratories, London SW3 6JB, U.K.
Journal of proteome research
|February 2, 2026
概括
超Plex-TMT通过使用TMT/TMTpro标签和直角消化来加倍样本吞吐量来增强定量蛋白质组学. 这种可扩展的工作流实现了高蛋白质量化和可重复性,而不需要定制设备.
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
- 定量生物学 定量生物学
背景情况:
- 像TMT/TMTpro这样的同质标签技术对于多重化定量蛋白质组学至关重要.
- 目前的方法在扩展到更高样本吞吐量时面临挑战.
研究的目的:
- 引入UltraPlex-TMT,这是一个新的工作流程,用于提高定量蛋白质组学中的样本吞吐量.
- 通过使用超复杂TMT/TMTpro标签和直角消化来证明UltraPlex-TMT的可扩展性和有效性.
主要方法:
- 整合直角蛋白质酶消化 (氨酸和氨酸特异性) 与超复杂的TMT/TMTpro标签.
- 使用两种蛋白质组的基准测试,在一个伪58个plex设计中使用TMT11plex和TMT18plex.
- 使用MS2和RTS-MS3采集方法进行定量分析.
主要成果:
- 在没有定制化学或仪器的情况下,UltraPlex-TMT有效地将样品吞吐量翻了一番.
- 实现了每个子复合体的6000-7000个蛋白质的量化,以及9000个具有高可重复性的总蛋白质.
- 证明了蛋白质组深度 (MS2) 和量化精度 (MS3) 之间的权衡,方法之间具有强大的生物一致性.
- 正角消化没有引入系统的量化偏差.
结论:
- 超Plex-TMT为高通量蛋白质组学提供了灵活和可扩展的基础.
- 工作流支持未来的超高尺度 (200+样本) 和快速分析的进步.
- 超Plex-TMT促进了具有高定量准确性和可重复性的强大的蛋白质组概况.
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