The identification of specific interactions between small molecules and human proteins of interest is a fundamental step in chemical biology and drug development. Here we describe an efficient method to obtain novel binding ligands of human proteins by a chemical array approach. Our method includes large-scale ligand screening with two libraries, proteins and chemicals, the use of cell lysates that express proteins of interest fused with red fluorescent protein, and high-throughput screening by merged display analysis, which removes false positive signals from array experiments. Using our systematic platform, we detected novel inhibitors of carbonic anhydrase II. It is suggested that our systematic platform is a rapid and robust approach to screen novel ligands for human proteins of interest.
鉴定小分子与人类目标蛋白之间的特定相互作用是
化学生物学和药物开发中的一个基本步骤。在这里,我们描述了一种通过
化学阵列方法获得人类蛋白新结合
配体的高效方法。我们的方法包括使用两个文库进行大规模
配体筛选,即蛋白质和
化学物质,利用表达与红色荧光蛋白融合的目标蛋白的细胞裂解液,以及通过合并显示分析进行的高通量筛选,这种方法能够去除阵列实验中的假阳性信号。通过我们的系统平台,我们检测到了
碳酸酐酶 II 的新
抑制剂。我们建议我们的系统平台是一种快速而稳健的方法,可以筛选人类目标蛋白的新
配体。