Molecular modeling of three-dimensional structure of hTRPV4 protein and experimental verification of its antagonist binding sites
作者:Chongyi Ai、Wenjuan Zhang、Lulu Zhou、Xu Cai、Zhibing Zheng
DOI:10.1016/j.molstruc.2020.129421
日期:2021.3
interactions of different protein-ligand complexes were calculated by molecular docking and molecular dynamics (MD) simulation, and the outcome revealed the rationality of the binding pocket. Based on the docking and MD results of this model and the structure of compound A2, a TRPV4 antagonist reported in literature, two small molecular compounds, B1 and B2, were designed and synthesized as hTRPV4 antagonists
摘要 瞬时受体电位香草素 4 型 (TRPV4) 是一种多峰受体。人类 TRPV4 (hTRPV4) 拮抗剂代表了一种新的急性肺损伤 (ALI) 治疗方法。然而,由于 hTRPV4 蛋白的 3D 结构不可用,各种 hTRPV4 拮抗剂的发现一直很困难。我们通过同源建模构建了 hTRPV4 蛋白的 3D 结构,并首次预测了拮抗剂与 hTRPV4 的结合口袋。口袋与相同亚科兔TRPV5一致。通过分子对接和分子动力学(MD)模拟计算了不同蛋白质-配体复合物的详细相互作用,结果揭示了结合口袋的合理性。基于该模型的对接和MD结果以及化合物A2的结构,文献报道的一种TRPV4拮抗剂,设计合成了两种小分子化合物B1和B2作为hTRPV4拮抗剂。体外生物学评价结果表明,这些化合物对hTRPV4具有良好的抑制活性。此外,结果与分子模拟预测的结果非常吻合,这反过来表明建模的 3D 结构和预测的 hTRPV4 活性位点是合理可靠的。化合物