VU041 是第一个亚微摩尔亲和力 Anopheles (An.) gambiae 和 Aedes (Ae.) aegypti Kir1 通道的抑制剂，IC50 值分别为 2.5 μM 和 1.7 μM。VU041 明显抑制哺乳动物 Kir2.1 通道 (IC50 为12.7 μM)，对哺乳动物 Kir1.1，Kir4.1，Kir6.2/SUR1 和 Kir7.1 的抑制作用较小。VU041 也可导致 Malpighian 小管功能受损。
货号:ajcx33178
CAS:332943-64-3
分子式:C19H20F3N3O
分子量：363.38
溶解度:DMSO : 20 mg/mL (55.04 mM; ultrasonic and warming and heat to 60°C)
纯度：98%
存储：Store at -20°C
库存：现货

Background:

VU041 is a first submicromolar-affinity inhibitor of Anopheles (An.) gambiae and Aedes (Ae.) aegypti inward rectifier potassium 1 (Kir1) channels with IC50 values of 2.5 μM and 1.7 μM, respectively. VU041 inhibits appreciably is mammalian Kir2.1 (IC50 of 12.7 μM), and has less inhibitory effect on mammalian Kir1.1, Kir4.1, Kir6.2/SUR1, and Kir7.1. VU041 also induces impaired Malpighian tubule function[1].

VU041 is only moderately metabolized by cytochrome P450 enzymes and does not appear to be metabolized by esterases. VU041 is the first small-molecule inhibitor of mosquito Kir1 channels that exhibits topical toxicity in both insecticide-susceptible and -resistant lines of mosquitoes[1].

Topical VU041 application to adult female mosquitoes of both species inhibits their fecundity. Importantly, VU041 is selective for mosquito Kir channels over mammalian Kir channel orthologs and non-lethal to adult honey bees (Apis mellifera). The in vivo experiments of blood meal processing and diuretic capacity suggest that one mechanism of action of VU041 is the disruption of excretory functions mediated by Malpighian tubules[1].

[1]. Swale DR, et al. An insecticide resistance-breaking mosquitocide targeting inward rectifier potassium channels in vectors of Zika virus and malaria. Sci Rep. 2016 Nov 16;6:36954.