(E)-KN-93 (phosphate)
(E)-KN-93 phosphate is an inhibitor for Ca2+/calmodulin-dependent protein kinase II (CaMK II) with IC50 of 9 μM and 3 μM, for CaMKIIδ monomer and CaMKIIδ dodecamer. (E)-KN-93 phosphate binds competitively with Ca2+/CaM, and disrupts their interaction with CaMK II, and thus inhibits the CaMK II activation.