LDN-193189: Selectivity & Specificity
LDN-193189 is a potent inhibitor of ALK2(R206H) (20 nM), ALK1 (0.8 nM), ALK5 (350 nM), ALK1 kinase (13.3 nM), ALK2 kinase (40.7 nM), ALK3 kinase (<5 nM), ALK6 kinase (60 nM), ALK4 kinase (1825 nM), ALK5 kinase (565 nM). LDN-193189 exhibits the greatest inhibitory potency toward ALK1 (IC50 = 0.8 nM).