KT5926 is an effective and selective inhibitor of myosinlightchainkinase. KT5926 is an analogue of K-252a, which blocks all responses to NGF. KT5926 selectively inhibits nerve growth factor-dependent neurite elongation.
SR-33805 is a calcium channel antagonist potentially for the treatment of atherosclerosis and heart failure. SR-33805 restored the MI-altered cell shortening without affecting the Ca(2+) transient amplitude, suggesting an increase of myofilament Ca(2+) sensitivity in MI myocytes. A SR33805-induced sensitization of myofilament activation was found to be associated with a slight increase in myosinlightchain-2 phosphorylation and a more significant decrease on troponin I (TnI) phosphorylation. Decreased TnI phosphorylation was related to inhibition of protein kinase A activity by SR-33805.
Selective competitive inhibitor of myosinlightchainkinase (IC50 = 50 nM). Displays 4000-fold selectivity over CaM kinase II and does not inhibit PKA. Cell permeable.