Turcotte B, Meyer M E, Bocquel M T, Bélanger L, Chambon P
Unité 184 de Biologie Moléculaire et de Génie Génétique de l'Institut National de la Santé et de la Recherche Médicale, Faculté de Médecine, Institut de Chimie Biologique, Strasbourg, France.
Mol Cell Biol. 1990 Sep;10(9):5002-6. doi: 10.1128/mcb.10.9.5002-5006.1990.
Using transient transfection assays, we showed that repression of the alpha-fetoprotein promoter by intact and deletion mutants of the progesterone receptor and by chimeric progesterone/glucocorticoid-estrogen receptors in the presence of their cognate hormones was closely correlated with their ability to bind to a progesterone/glucocorticoid-responsive element. This negative regulation was also observed in the presence of antihormones, providing evidence that receptor-antihormone complexes can bind to their responsive elements in vivo.
通过瞬时转染分析,我们发现,在存在其同源激素的情况下,孕酮受体的完整和缺失突变体以及嵌合的孕酮/糖皮质激素 - 雌激素受体对甲胎蛋白启动子的抑制作用与其结合孕酮/糖皮质激素反应元件的能力密切相关。在存在抗激素的情况下也观察到这种负调控,这证明受体 - 抗激素复合物在体内可以结合其反应元件。