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Quantification of Site-specific Protein Lysine Acetylation and Succinylation Stoichiometry Using Data-independent Acquisition Mass Spectrometry
JoVE 신문
생물학
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JoVE 신문 생물학
Quantification of Site-specific Protein Lysine Acetylation and Succinylation Stoichiometry Using Data-independent Acquisition Mass Spectrometry
DOI:

12:49 min

April 04, 2018

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Chapters

  • 00:04Title
  • 01:18Quantitatively Acetylate and/or Succinylate Proteins Using Isotope-labeled Acetic or Succinic Anhydride
  • 03:48Digest Reacted Protein Samples Using Glu-C Endoproteinase
  • 06:27Fractionate Peptides Using Offline Basic-pH Reversed Phase HPLC
  • 08:15Example Data Analysis Tutorial
  • 10:28Results: Succinylation Stoichiometry Ratio Calculation of Pre-succinylated BSA
  • 11:13Conclusion

Summary

자동 번역

Here, we present unbiased quantification of site-specific protein acetylation and/or succinylation occupancy (stoichiometry) of an entire proteome through a ratiometric analysis of endogenous modifications to modifications introduced after quantitative chemical acylation using stable isotope-labeled anhydrides. In combination with sensitive data-independent acquisition mass spectrometry, accurate site occupancy measurements are obtained.

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