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Resin-Assisted Capture Coupled with Isobaric Tandem Mass Tag Labeling for Multiplexed Quantification of Protein Thiol Oxidation
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Biochemistry
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JoVE Journal Biochemistry
Resin-Assisted Capture Coupled with Isobaric Tandem Mass Tag Labeling for Multiplexed Quantification of Protein Thiol Oxidation

Resin-Assisted Capture Coupled with Isobaric Tandem Mass Tag Labeling for Multiplexed Quantification of Protein Thiol Oxidation

DOI:
10.3791/62671-v

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07:16 min

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June 21, 2021

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, , ,
1Integrative Omics, Biological Sciences Division,Pacific Northwest National Laboratory, 2Bioproducts Sciences and Engineering Laboratory, Department of Biological Systems Engineering,Washington State University

Chapters

  • 00:04Introduction
  • 00:31Resin-Assisted Capture
  • 03:52On-Resin Tryptic Digestion and Tandem Mass Tag (TMT) Labeling
  • 04:45Peptide Elution
  • 05:47Results: Analysis of Peptides from Resin-Assisted Capture Enrichment
  • 06:35Conclusion

Summary

Automatic Translation

Automatic Translation

Protein thiol oxidation has significant implications under normal physiological and pathophysiological conditions. We describe the details of a quantitative redox proteomics method, which utilizes resin-assisted capture, isobaric labeling, and mass spectrometry, enabling site-specific identification and quantification of reversibly oxidized cysteine residues of proteins.

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Protein Thiol OxidationResin-assisted CaptureIsobaric Tandem Mass Tag LabelingQuantificationCystine ResiduesSample PreparationAcetone WashProtein SolubilizationBCA AssayCentrifugal FiltrationProtein ReductionDTTBuffer Exchange

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