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].
KB02-SLF is a PROTAC-based nuclear FKBP12 degrader, known as a molecular glue. It facilitates the degradation of nuclear FKBP12 by covalently modifying DCAF16, an E3 ligase. Moreover, KB02-SLF enhances the longevity of protein degradation in biological systems. The compound SLF acts as a linker, binding to the ubiquitin E3 ligase ligand KB02, resulting in the formation of KB02-SLF[1].
Dynamin-related GTPase DRP1 partial inhibitor (IC50 = 1.2 μM). Selective for DRP1 over other dynamin-related GTPases, OPA1 and DYN1. Increases mitochondrial DNA levels in mfn1- knockout MEFs deficient in mitochondrial fusion. Mallat et al (2018) Discovery and characterization of selective small molecule inhibitors of the mammalian mitochondrial division dynamin, DRP1. Biochem.Biophys.Res.Commun. 499 556 PMID:29601815
KB02-COOH is a synthetic fragment derived from ubiquitin E3 ligase ligand KB02, which possesses potential utility in the synthesis of PROTAC compounds. Notably, KB02-COOH can be employed in the generation of PROTAC constructs like KB02-JQ1 and KB02-SLF.