一个RNA结构元素的选择性小分子抑制
John A Howe1, Hao Wang1, Thierry O Fischmann1
1Merck Research Laboratories, Kenilworth, New Jersey 07033, USA.
Nature
|September 30, 2015
概括
研究人员发现了 ribocil,一种新型合成分子,可以选择性地向细菌的 riboflavin riboswitch. 这种化合物模仿天然配体,抑制基因表达和细菌生长,扩大药物点的可能性.
科学领域:
- 分子生物学
- 核糖核酸生物学
- 药物发现
背景情况:
- 利博开关是通过结合配体控制基因表达的调节性RNA元素.
- 由于抑制剂的化学多样性有限,针对药物开发的 ribowitches 具有挑战性.
- 现有的抑制剂通常仅限于抗代谢物或配体类型.
研究的目的:
- 发现并描述细菌里博蛋白转换器的新型化学调节剂.
- 探索利用合成小分子向非编码RNA结构的潜力.
- 为了提高选择性,识别具有独特化学结构的抑制剂.
主要方法:
- 进行表型查以识别潜在的调节剂.
- 利博与利博互动的特征.
- 评估 ribocil 对 ribB 基因表达和细菌生长的影响.
主要成果:
- 发现了 ribocil,一种细菌 riboflavin riboswitch 的选择性化学调节剂.
- 利博西尔是一种合成模仿黄单核酸的药物.
- 利博西尔抑制了 riboB 基因表达并抑制了细菌的生长.
结论:
- 非编码的RNA结构元素可以被比以前想象的更广泛的合成小分子所准.
- 利博西尔是一种新型的细菌 рибофлавин转换剂抑制剂.
- 这项研究扩大了杆开关向药物的化学空间.
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