It has been discovered that the degree of hormonal activity of candidate ligands correlates better with degree of fit into DNA than with the strength of receptor binding, and that the receptors in the steroid/thyroid hormone/vitamin A and D family alter the physiochemical properties of DNA and in concert with other transcription factors facilitate insertion of the ligand into DNA. As a result, the magnitude of the response is a function of the structure of the ligand as it related to insertion and fit into the DNA and the specificity of the response is a function of the stereochemistry of the receptor through binding to both the ligand and to the DNA. Based on these discoveries, a method is described herein for identifying drugs having increased activity as compared with the natural ligand for receptors such as the estrogenic receptors.
人们发现,候选
配体的荷尔蒙活性程度与 DNA 的匹配程度的相关性比与受体结合强度的相关性要好,类
固醇/甲状腺激素/
维生素 A 和 D 家族中的受体会改变 DNA 的理化性质,并与其他转录因子一起促进
配体插入 DNA。因此,反应的大小是
配体结构的函数,因为它与插入和适合 DNA 有关,而反应的特异性则是受体通过与
配体和 DNA 结合的立体
化学的函数。基于这些发现,本文介绍了一种方法,用于鉴定与
雌激素受体等受体的天然
配体相比活性更强的药物。