(+)-JQ1 maleimide是一种探针,由一个与BRD4配体JQ1通过PEG2连接器相连的含有活性的maleimide组成。它可用于COFFEE方法(COvalent Functionalization Followed by E3 Electroporation),在该方法中,(+)-JQ1 maleimide与VHL共价连接后通过电穿孔导入活细胞。E3连接酶在细胞内与BRD4形成复合物,引导其降解。
KB02-JQ1 is a potent and specific proteolysis targeting chimera (PROTAC) that specifically degrades BRD4, acting as a molecular glue. It does not degrade BRD2 or BRD3. The mechanism of action involves covalent modification of the E3 ligase DCAF16, thereby promoting BRD4 degradation. Importantly, KB02-JQ1 demonstrates enhanced stability and durability in facilitating protein degradation within biological systems. The compound forms a complex with the ubiquitin E3 ligase ligand KB02 through a linker, resulting in the formation of KB02-JQ1[1].
(+)-JQ-1 carboxylic acid is a potent bromodomain and extra terminal domain (BET) inhibitor. (+)-JQ-1 carboxylic has potential to be used as a precursor to synthesize PROTACs and other conjugates.
(+)-JQ-1-aldehyde is the aldehyde derivative of (+)-JQ1, commonly used as a precursor for the synthesis of PROTACs targeting the BET bromine domain[1].