The present invention defines a DNA: protein-binding assay useful for screening libraries of synthetic or biological compounds for their ability to bind DNA test sequences. The assay is versatile in that any number of test sequences can be tested by placing the test sequence adjacent to a defined protein binding screening sequence. Binding of molecules to these test sequence changes the binding characteristics of the protein molecule to its cognate binding sequence. When such a molecule binds the test sequence the equilibrium of the DNA:protein complexes is disturbed, generating changes in the concentration of free DNA probe. Numerous exemplary target test sequences (SEQ ID NO:1 to SEQ ID NO:600) are set forth. The assay of the present invention is also useful to characterize the preferred binding sequences of any selected DNA-binding molecule.
本发明定义了一种 DNA:蛋白质结合测定法,可用于筛选合成或
生物化合物库,以确定其结合 DNA 测试序列的能力。这种检测方法用途广泛,只要将检测序列与确定的蛋白质结合筛选序列相邻,就可以检测任何数量的检测序列。分子与这些测试序列的结合会改变蛋白质分子与其同源结合序列的结合特性。当这种分子与测试序列结合时,DNA:蛋白质复合物的平衡就会被打破,从而引起游离 DNA 探针浓度的变化。这里列出了许多示例性的目标测试序列(
SEQ ID NO:1 至
SEQ ID NO:600)。本发明的检测方法也可用于鉴定任何选定 DNA 结合分子的优选结合序列。