Experimental and Computational Structural Studies of 2,3,5-Trisubstituted and 1,2,3,5-Tetrasubstituted Indoles as Non-Competitive Antagonists of GluK1/GluK2 Receptors
作者:Agata Bartyzel、Agnieszka A. Kaczor、Ghodrat Mahmoudi、Ardavan Masoudiasl、Tomasz M. Wróbel、Monika Pitucha、Dariusz Matosiuk
DOI:10.3390/molecules27082479
日期:——
analysis to determine the structure of the compounds in the solidstate and quantumchemicalcalculations to compute HOMO and LUMO orbitals and the electrostatic potential. Moreover, non-covalent interaction maps were also calculated. It is worth emphasizing that compounds 3 and 4 are achiral molecules crystallising in non-centrosymmetric spacegroups, which is a relatively rare phenomenon.
红藻氨酸受体的阻断,特别是非竞争性拮抗剂的阻断,由于其抗惊厥和神经保护特性,在许多中枢神经系统 (CNS) 疾病中具有治疗潜力。解读红藻氨酸受体配体的结构特性对于设计更适合受体结合口袋的药物化合物至关重要。鉴于这一事实,我们在这里报告了四种吲哚衍生物的实验和计算结构研究,这些衍生物是 GluK1/GluK2 受体的非竞争性拮抗剂。我们使用 X 射线研究和 Hirshfeld 表面分析来确定固态化合物的结构,并使用量子化学计算来计算 HOMO 和 LUMO 轨道以及静电势。此外,还计算了非共价相互作用图。3和4是在非中心对称空间群中结晶的非手性分子,这是一种相对罕见的现象。
Structural studies, homology modeling and molecular docking of novel non-competitive antagonists of GluK1/GluK2 receptors
Non-competitive ligands of kainate receptors have focused significant attention as medicinal compounds because they seem to be better tolerated than competitive antagonists and uncompetitive blocker of these receptors. Here we present structural studies (X-ray structure determination, NMR and MS spectra) of novel indole-derived non-competitive antagonists of GluK1/GluK2 receptors, homology models of GluK1 and GluK2 receptors based on novel AMPA receptor template as well as molecular docking of ligands to their molecular targets. We find that the allosteric site is in the receptor transduction domain, in one receptor subunit, not between the two subunits as it was indicated by our earlier studies. (C) 2013 Elsevier Ltd. All rights reserved.
Novel Non-Competitive Antagonists of Kainate GluK1/GluK2 Receptors