简介内容:ERK5-IN-4 (compound 34b) is a powerful and specific inhibitor of extracellular signal-related kinase 5 (ERK5) activity. It effectively inhibits both the full-length ERK5 and the truncated ERK5 (ERK5 ΔTAD) kinase activity in HEK293 cells with IC50 values of 77 nM and 300 nM, respectively [1].