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Quantitative Proteomics Using Reductive Dimethylation for Stable Isotope Labeling
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Journal JoVE Chimie
Quantitative Proteomics Using Reductive Dimethylation for Stable Isotope Labeling
DOI:

11:53 min

July 01, 2014

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Chapitres

  • 00:05Titre
  • 01:19Protein Purification and Alkylation of Free Sulfhydryl Groups
  • 02:59Protein Digestion, Reversed Phase Peptide Extraction, and Reductive Dimethylation Labeling
  • 06:02Basic pH Reversed Phase Chromatography and STop and Go Extraction
  • 08:17Microcapillary LC-MS/MS and Peptide Quantification
  • 09:58Results: Accuracy, Precision, and Reproducibility of ReDi Labeling
  • 11:24Conclusion

Summary

Traduction automatique

Stable isotope labeling of peptides by reductive dimethylation (ReDi labeling) is a rapid, inexpensive strategy for accurate mass spectrometry-based quantitative proteomics. Here we demonstrate a robust method for preparation and analysis of protein mixtures using the ReDi approach that can be applied to nearly any sample type.

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