MM-102 trifluoroacetate

• CAT Number: I005794
• Molecular Formula: C37H50F5N7O6
• Molecular Weight: 783.83
• Purity: ≥95%
• Target: MLL
• Solubility: 10 mM in DMSO, 10 mM in H2O
• Storage: Store at -20°C
• IC50: 2.4 nM

MM-102 trifluoroacetate is a potent WDR5/MLL interaction inhibitor, achieves IC50 = 2.4 nM with an estimated Ki < 1 nM in WDR5 binding assay, which is >200 times more potent than the ARA peptide. 

in vitro: MM-102 inhibits MLL1 methyltransferase activity and MLL-1-induced HoxA9 and Meis-1 gene expression in leukemia cells expressing the MLL1-AF9 fusion gene. Also inhibits cell growth and induces apoptosis in leukemia cells harbouring MLL1 fusion proteins. MM-102, with the highest binding affinities to WDR5, also show the most potent inhibitory activity in the HMT assay with IC50 = 0.4-0.9 μM. MM-102 dose-dependently inhibits cell growth in the MV4;11 and KOPN8 leukemia cell lines, which carry MLL1-AF4 and MLL1-ENL fusion proteins, respectively. MM-102 has IC50 = 25 μM in both cell lines and completely inhibits cell growth in these cell lines at 75 μM. MM-102 effectively and selectively inhibits cell growth and induces apoptosis in leukemia cells harboring MLL1 fusion proteins and has minimal effect in leukemia cells with wild-type MLL1 protein.

Reference

[1]. Karatas H, et al. High-affinity, small-molecule peptidomimetic inhibitors of MLL1/WDR5 protein-protein interaction. J Am Chem Soc. 2013 Jan 16;135(2):669-682.