FRET Studies of Quinolone-Based Bitopic Ligands and Their Structural Analogues at the Muscarinic M<sub>1</sub> Receptor
作者:Regina Messerer、Michael Kauk、Daniela Volpato、Maria Consuelo Alonso Canizal、Jessika Klöckner、Ulrike Zabel、Susanne Nuber、Carsten Hoffmann、Ulrike Holzgrabe
DOI:10.1021/acschembio.6b00828
日期:2017.3.17
partial agonists as well as allosteric modulators for the M1 muscarinic acetylcholine (M1AChR) receptor, two different series of bipharmacophoric ligands and their structural analogues were designed and synthesized. The hybrids were composed of the benzyl quinolone carboxylic acid (BQCA)-derived subtype selective allosteric modulator 3 and the orthosteric building block 4-((4,5-dihydroisoxazol-3-yl)oxy)-N
为了设计M 1毒蕈碱型乙酰胆碱(M 1 AChR)受体的部分激动剂和变构调节剂,设计并合成了两个不同系列的双药效配体及其结构类似物。杂种由苄基喹诺酮羧酸(BQCA)衍生的亚型选择性变构调节剂3和正构构筑物4-((4,5-dihydroisoxazol-3-yl)oxy)-N,N-methylbut-2-组成分别是yn-1-胺(petrorox的碱)1或内源性配体2-(二甲基氨基)乙酸乙酯(乙酰胆碱的碱)2。这两个药效团通过不同长度(C4,C6,C8和C10)的亚烷基链。此外,1和2以及修饰的BQCA 3的相应结构类似物研究了在C2和C10之间具有不同烷基链长度的化合物。为了了解这些化合物如何在分子水平上与G蛋白偶联受体(GPCR)相互作用以及单个部分如何促进配体受体相互作用,研究了在活的单细胞系统中进行的荧光共振能量转移(FRET)测量。修饰的正构配体的表征表明,连接至正构的连接基迅速减弱