Proteomics

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Dose-dependent proteome profiling of KRAS pathway inhibitors sheds new light on drug mechanism of action and KRAS signaling


ABSTRACT: Kras is a molecular switch controlling the activity of the MAPK pathway. As such, it determines ERK activation state. In this study we identified many novel p-sites that were regulated upon KRAS inhibition. Many of these regulated p-sites were located within a SP/TP motif, the recognition motif of proline directed Kinases such as ERK. In this study we used parallel reaction monitoring (PRM) to determine the ability of ERK to phosphorylate synthetic peptides carrying a subset of these p-sites in a time-resolved manner. We identified that ERK was able to phosphorylate 10 of the tested sequences of which only one was phosphorylated on a mutated control peptide.

ORGANISM(S): Homo Sapiens

SUBMITTER: Miriam Abele  

PROVIDER: PXD054509 | panorama | Tue Jun 17 00:00:00 BST 2025

REPOSITORIES: PanoramaPublic

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