期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 140, 期 10, 页码 3491-3495出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.7b12408
关键词
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资金
- U.S. National Institutes of Health [GM068122, GM127295]
- Netherlands Organization for Scientific Research (RUBICON)
- EMBO ALTF [934-2014]
External photocontrol over RNA function has emerged as a useful tool for studying nucleic acid biology. Most current methods rely on fully synthetic nucleic acids with photocaged nucleobases, limiting application to relatively short synthetic RNAs. Here we report a method to gain photocontrol over RNA by postsynthetic acylation of 2'-hydroxyls with photoprotecting groups. One-step introduction of these groups efficiently blocks hybridization, which is restored after light exposure. Polyacylation (termed cloaking) enables control over a hammerhead ribozyme, illustrating optical control of RNA catalytic function. Use of the new approach on a transcribed 237 nt RNA aptamer demonstrates the utility of this method to switch on RNA folding in a cellular context, and underlines the potential for application in biological studies.
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