LDN-192960 (10 μM) is selective and inhibits ten of the other kinases by ≥90%, with only five being potently inhibited (IC50<1 μM), including CLK1 (IC50=0.21 μM), DYRK1A (IC50= 0.10 μM), DYRK2 (IC50=2 nM), DYRK3 (IC50=19 nM) and PIM1 (IC50=0.72 μM).
LDN-0192960 (0-5 μM; 2 hours) demonstrates that the classical Haspin inhibition phenotype by reducing levels of p-Thr3H3 in HeLa cells overexpressing Haspin with an EC50 of 1.17 μM.
LDN-0192960 (0-1 μM; 1 hour incubation in the presence of nocodazole and MG132) demonstrates the classical Haspin inhibition phenotype by reducing levels of p-Thr3H3 in HeLa cells synchronized in mitosis with an EC50 of 0.02 μM.