TEC 4

TEC 4 is a ByeTAC (bypass E3 ligase targeting chimera) that acts as a BRD4 degrader. At a concentration of 500 nM, it results in 33% residual BRD4 in Ramos B cells. Additionally, TEC 4 exhibits toxicity in Ramos B cells with an IC50 of 30.5 nM. ByeTAC recruits proteins directly to the proteasome for degradation by interacting with Rpn-13.