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蛋白酶和酸催化的贴标工作流程,用人<sup> 18</sup> O-富氧水
JoVE Journal
Biology
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JoVE Journal Biology
Protease- and Acid-catalyzed Labeling Workflows Employing 18O-enriched Water
DOI:

09:43 min

February 20, 2013

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Chapters

  • 00:05Title
  • 01:43PALeO-TimeCourse: Protease-catalyzed Labeling of Proteolytic Cleavages
  • 02:43PALeO-TimeCourse: Postdigestion Labeling of Proteolytic Termini
  • 03:48ALeO-TimeCourse: Acid-catalyzed Labeling of Carboxyl Groups
  • 04:25MALDI-TOF/TOF MS/MS Data Acquisition and Analysis
  • 06:35Preparation of Spectral Time and 18O-incorporation Plots
  • 07:06Representative Results
  • 08:58Conclusion

Summary

Automatic Translation

稳定同位素标记的工作流程,采用<sup> 18</sup> O-富氧水(LEO-工作流)的多用途工具进行定量和定性的蛋白质组学研究。在蛋白酶辅助(古)的工作流程,<sup> 18</sup> O原子的引入,通过蛋白水解和羧基氧交换反应介导的蛋白酶。在酸催化(ALEO)工作流程中,<sup> 18</sup> O原子在低pH条件下引入羧基氧交换。

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