Stereospecificity of the chloride ion channel: the action of chiral clofibric acid analogs
作者:Giancarlo Bettoni、Fulvio Loiodice、Vincenzo Tortorella、Diana Conte-Camerino、Mercede Mambrini、Ermanno Ferrannini、Shirley H. Bryant
DOI:10.1021/jm00391a002
日期:1987.8
2-(p-Chlorophenoxy)isobutyric acid (clofibric acid (1) or CPIB) is a drug known to block chloride membrane conductance (GCl) in rat striated muscle. In the present study chiral analogues of CPIB (2-(p-chlorophenoxy)propionic acid (2) and 2-(p-chlorophenoxy)butyric acid (3)) have been tested to evaluate the influence of chirality on Cl ion flux in the channel. The results showed that the chloride channel conductance
2-(对氯苯氧基)异丁酸(氯纤维酸(1)或CPIB)是一种已知可阻断大鼠横纹肌氯化物膜电导(GCl)的药物。在本研究中,已经测试了CPIB的手性类似物(2-(对氯苯氧基)丙酸(2)和2-(对氯苯氧基)丁酸(3)),以评估手性对ClIB中Cl离子通量的影响。渠道。结果表明,氯离子通道的电导率在很大程度上取决于绝对构型:实际上,受试化合物的S-(-)异构体强烈降低了骨骼肌膜的GCl,而R-(+)异构体实际上无效。这些数据提出了这样的假设:就像各种生物系统中存在的其他离子通道一样,