DOT1L Degrader

MS4322 (YS43-22) is a specific PRMT5 PROTAC degrader. MS4322 reduces the PRMT5 protein level with a DC₅₀ of 1.1 μM in MCF-7 cells. MS4322 inhibits the methyltransferase activity of PRMT5 with an IC₅₀ of 18 nM. MS4322 promotes ubiquitination and degradation of PRMT5. MS4322 can be used for the research of breast cancer, lung cancer, and hepatocellular cancer. (Pink: PRMT5 ligand (HY-173092); Blue: E3 ligase ligand HY-112078); Black: linker (HY-124780); E3+linker (HY-173093 )).

DOT1L808 is a potent and highly selective DOT1L PROTAC degrader with a DC₅₀ value of 5 nM. DOT1L808 can promote the ubiquitination and degradation of DOT1L. DOT1L808 exhibits antitumor activity in an orthotopic leukemia model.

MS2133 is a VHL-recruiting DOT1L PROTAC degrader. MS2133 possesses antiproliferative activity with a human DOT1L IC₅₀ of 4.6 nM, forms a ternary complex with DOT1L and VHL E3 ligase to drive DOT1L ubiquitination and subsequent proteasomal degradation without affecting DOT1L mRNA transcription, inhibits the proliferation of mixed lineage leukemia-rearranged leukemia cells and downregulates H3K79Me2, restrains proliferation of both tumor and normal cells but lacks cytotoxicity against normal cells, and can be used for the research of mixed lineage leukemia-rearranged leukemia.