Shi Z, Ren Y, Li S, Hao P. Identifying drug targets with thermal proteome profiling using IBT-16plex.
RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2024;
38:e9673. [PMID:
38073198 DOI:
10.1002/rcm.9673]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 10/10/2023] [Accepted: 10/18/2023] [Indexed: 12/18/2023]
Abstract
RATIONALE
Thermal proteome profiling (TPP) has been widely used for the identification of drug targets for several years, and TMTpro-16plex has recently been evaluated for TPP of vehicle- and drug-treated samples in a single labeling process to reduce missing values and save instrument time. A novel isobaric labeling reagent, IBT-16plex, was developed with slightly better performance in protein identification and quantification than the commercially available TMTpro-16plex.
METHODS
In this study, we applied the newly developed IBT-16plex for target identification of methotrexate and panobinostat using TPP.
RESULTS
The known targets of these two drugs were successfully identified with elevated melting temperatures, and some known off-targets and potential new off-targets were also identified.
CONCLUSIONS
IBT-16plex can be a cost-effective replacement for TMTpro-16plex for TPP applications.
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