4-[2-(N-methylisoquinoline-5-sulfonamido)-3-oxo-3-(4-phenylpiperazin-1-yl)propyl]phenyl isoquinoline-5-sulfonate

UsesA specific inhibitor of Ca2+/Calmodulin-dependent protein kinase II

Usesselectively inhibits rat brain Ca2+/cadmodulin-dependent protein kinase II,

UsesIt is used as a potent and selective inhibitor of CaMKII. KN-62 has demonstrated potent and selective inhibition of Ca2+/calmodulin-dependent protein kinase II (CaMKII; Ki=0.9 M) which causes cells to arrest in the S phase. In HEK-293 cells expressing type III adenylyl cyclase (III-AC), 10 M of KN-62 blocked CaMKII phosphorylation of III-AC, and inhibited hormone-stimulated Ca2+ oscillations. Additionally, KN-62 is a potent non-competitive antagonist at the P2X7 receptor (IC50 = 15 nM).

General DescriptionA cell-permeable, reversible, and selective inhibitor of CaM kinase II (Ki = 900 nM for rat brain CaM kinase II) that binds directly to the calmodulin binding site of the enzyme. Also inhibits the growth of K562 cells in a dose-dependent manner.