TEC 4 is a ByeTAC (Bypassing E-Ligase-Targeting Chimera) BRD4 degrader, with 33% BRD4 remaining at 500 nM in Ramos B-cells. TEC 4 shows toxicity for Ramos B-cells, with an IC50 of 30.5 nM. ByeTACs directly recruits a protein to the proteasome via interactions with Rpn-13 for degradation. Pink: BRD4 lignad; Blue: Rpn-13 ligand; Black: linker [1].
References:
[1]. Loy CA, et al. ByeTAC: Bypassing E-Ligase-Targeting Chimeras for Direct Proteasome Degradation. J Med Chem. 2025 May 8;68(9):9694-9705.
References:
[1]. Loy CA, et al. ByeTAC: Bypassing E-Ligase-Targeting Chimeras for Direct Proteasome Degradation. J Med Chem. 2025 May 8;68(9):9694-9705.