protx iii

Potent Nav1.7 blocker (IC50 = 2.5 nM). Also inhibits Nav1.1, Nav1.2, Nav1.3 and Nav1.6 in the nanomolar range. Exhibits no effects on Cav channels or nAChR at 5 μM. Demonstrates analgesic activity in vivo; antagonizes effects of scorpion-venom toxin OD1 a

ProTx-III是一种从秘鲁绿绒狼蛛毒液中分离得到的蜘蛛毒肽，它是一个选择性且有效的Nav1.7电压门控钠离子通道抑制剂，其IC50值为2.1 nM。ProTx-III特征为含有典型的抑制剂胱氨酸结基序(ICK)，并可逆转疼痛反应，适用于慢性疼痛、癫痫和心律失常等疾病的研究。