完全功能化的小分子探针用于综合的表型查和目标识别.
Justin S Cisar1, Benjamin F Cravatt
1The Skaggs Institute for Chemical Biology and Department of Chemical Physiology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.
Journal of the American Chemical Society
|June 7, 2012
概括
这项研究开发了一个功能化的小分子库,用于识别药物点. 一种新型化合物通过向NADH:乌比金氧降解酶 (复合物1) 来选择性抑制癌细胞增殖.
科学领域:
- 化学生物学 化学生物学
- 药物发现 药物发现 药物发现
- 蛋白质组学是指蛋白质组学.
背景情况:
- 现型查可以识别生物活性小分子,但由于非目标效应,目标识别具有挑战性.
- 在生物系统中描述小分子相互作用仍然很困难,这阻碍了对药理活性的机制理解.
研究的目的:
- 开发一种全新的,功能齐全的小分子库,用于加速目标识别.
- 创建一个工具,用于在现场可视化和识别生物活性化合物的蛋白质标.
主要方法:
- 设计了一个小分子库,配有多样性元素,用于交叉链接的光反应组,以及用于记者结合的基因手柄.
- 量化化学蛋白质组学和体外测试被用来识别和验证活性化合物的标.
主要成果:
- 一位图书馆成员在低葡萄糖条件下选择性地抑制了癌细胞的增殖.
- 量化化学蛋白组学确定了NADH:乌比金氧化还原酶 (复合物1) 作为特定的目标.
- 该化合物在体外抑制了复合1活性,这与在营养限制下观察到的细胞死亡一致.
结论:
- 完全功能化的化合物库与化学蛋白质组学相结合,可以快速识别目标和机械表征.
- 这种方法加速了对复杂生物过程的生物活性探针的发现.
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