通过结合Tryp-N和Trypsin的蛋白质消化来增加整体蛋白质覆盖范围
Jade I Hawksworth1,2, Lode Denolf1,2, Evy Timmerman1,2,3
1VIB-UGent Center for Medical Biotechnology, Ghent, Belgium.
Methods in molecular biology (Clifton, N.J.)
|September 4, 2023
概括
使用多个蛋白酶,如素和Tryp-N与S-Trap列增强蛋白质覆盖. 将这些蛋白酶结合起来,可以识别更多的和蛋白质,从而获得更深入的生物学见解.
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 生物化学
背景情况:
- 蛋白酶选择对基于质谱的蛋白质组学中的标识产生影响.
- 素和Tryp-N为蛋白质消化提供了互补的裂解特异性.
研究的目的:
- 评估试素和Tryp-N与S-Trap列的联合使用,以增强蛋白质覆盖范围.
- 为了比较单与双蛋白酶策略的蛋白质识别效率.
主要方法:
- 使用素和Tryp-N的蛋白质消化消化.
- 使用S-Trap列的蛋白质净化和消化催化.
- 基于质谱的蛋白质组学用于和蛋白质的识别.
主要成果:
- 将素和Tryp-N与S-Trap列结合起来,为每个蛋白酶确定了独特的蛋白质.
- 与单个蛋白质酶消化相比,双蛋白质酶消化产生了更全面的蛋白质组概况.
- S-Trap柱子有效地促进了样品净化和蛋白酶催化消化.
结论:
- 与S-Trap列并行使用素和Tryp-N蛋白酶显著增加了蛋白质覆盖范围.
- 建议以互补的方式使用这两种蛋白酶,以便更深入,更完整地识别蛋白质.
- 这种双蛋白酶方法推进了定量蛋白质组学和生物标志物发现.
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