CK59 is a reversible inhibitor of calcium-calmodulin-dependent kinase II (CaMKII). CK59 inhibits multiple voltage-gated calcium channels, including the L-type channel during depolarization in a dose-dependent manner. The IC50 for CK59 was approximately 50
Huwentoxin XVI TFA,一种来自鸟蛛 Ornithoctonus huwena 的止痛剂,一种高度可逆和选择性的哺乳动物 N 型钙通道 (N-type calcium channel) (IC50约为 60 nM) 拮抗剂。Huwentoxin XVI TFA 对电压门控的 T 型钙通道,钾通道或钠通道没有影响。
ML-252 is a potent, selective inhibitor of the Kv7.2 voltage-gated potassium channel, demonstrating an IC50 value of 69 nM in patch clamp assays. It exists as the (S)-enantiomer, which is significantly more effective than both its (R)-enantiomer counterpart and the racemic mixture, with respective IC50 values of 944 nM and 160 nM. ML-252 exhibits high selectivity for Kv7.2 over other potassium channel subtypes and shows minimal activity against more than 68 G protein-coupled receptors, various transporters, L- and N-type calcium channels, K_ATP, and hERG potassium channels. However, it does inhibit the melatonin MT1 receptor by 61% at a 10 µM concentration.