Molecular Recognition of Modified Adenine Nucleotides by the P2Y<sub>1</sub>-Receptor. 1. A Synthetic, Biochemical, and NMR Approach
作者:Efrat Halbfinger、Dan T. Major、Marco Ritzmann、Joachim Ubl、Georg Reiser、Jose L. Boyer、Kendall T. Harden、Bilha Fischer
DOI:10.1021/jm990156d
日期:1999.12.1
evaluation, and their SAR analysis involving NMR experiments and theoretical calculations. These experiments and calculations were performed to elucidate the conformation and to evaluate the electronic nature of the investigated P2Y(1)-R ligands. ATP analogues synthesized included derivatives where C2 or C8 positions were substituted with electron-donating groups such as ethers, thioethers, or amines
关于火鸡红细胞膜中P2Y(1)-受体(P2Y(1)-R)活化的2-硫醚-腺嘌呤核苷酸的显着高效能代表了某些替代天然物质所促进的最大效能提升受体配体。本文介绍了有关这些P2Y(1)-R配体比ATP高效力的起源的研究。在这项研究中,采用了一种综合方法,将新的ATP类似物的合成,其生化评估以及涉及NMR实验和理论计算的SAR分析相结合。进行这些实验和计算以阐明其构象并评估所研究的P2Y(1)-R配体的电子性质。合成的ATP类似物包括衍生物,其中C2或C8位置被供电子基团(例如醚,硫醚或胺)取代。测试了化合物在火鸡红细胞中诱导P2Y(1)-R介导的磷脂酶C活化和大鼠星形胶质细胞Ca(2+)反应的效力。8-取代的ATP和AMP衍生物对磷脂酶C或钙水平几乎没有或没有影响,而相应的2-取代的ATP类似物有效地增加了肌醇磷酸酯和Ca(2 +)(i)的水平。除2-丁基硫代-AMP引起小的Ca(2+)反应外,