Tandem mass tag-based thermal proteome profiling for the discovery of drug-protein interactions in cancer cells

Fraser D. Johnson, Christopher S. Hughes, Alvin Liu, William W. Lockwood, Gregg B. Morin

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Identification of effector targets is imperative to the characterization of the mechanisms of action of novel small molecules. Here, we describe steps to identify effector drug-protein interactions in lysates derived from cancer cell lines using a thermal proteome profiling (TPP) protocol. Building on existing TTP approaches, we detail the use of an in-solution trypsin digestion technique to streamline sample preparation, a nonparametric analysis to rank proteins for prioritization, and a follow-up strategy for identifying effector interactors. For complete details on the use and execution of this protocol, please refer to Johnson et al. (2022).

Original languageEnglish
Article number102012
JournalSTAR Protocols
Volume4
Issue number1
DOIs
Publication statusPublished - 17 Mar 2023

Keywords

  • Cancer
  • Cell Biology
  • Mass Spectrometry
  • Molecular Biology
  • Protein Biochemistry
  • Proteomics

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