Target profiling of zerumbone using a novel cell-permeable clickable probe and quantitative chemical proteomics.

Zerumbone is a phytochemical with diverse biological activities ranging from anti-inflammatory to anti-cancer properties; however, to date the cellular targets of this important compound have remained elusive. Here we report the global protein target spectrum of zerumbone in living cancer cells using competitive activity-based protein profiling of a novel cell-permeable clickable probe, combined with quantitative mass spectrometry.