Synthesis of oligo-RNAs with photocaged adenosine 2′-hydroxyls

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Abstract

This protocol describes a general method for the preparation of RNAs in which the reactivity or hydrogen-bonding properties of the molecule are modified in a photoreversible fashion by use of a caging strategy. A single caged adenosine, modified at the 2′ position as a nitro-benzyl ether, can be incorporated into short RNAs by chemical synthesis or into long RNAs by a combination of chemical and enzymatic synthesis. The modified RNAs can be uncaged by photolysis under a variety of conditions including the use of a laser or xenon lamp, and the course of this uncaging reaction may be readily followed by HPLC or thin-layer chromatography.

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Chaulk, S. G., & MacMillan, A. M. (2007). Synthesis of oligo-RNAs with photocaged adenosine 2′-hydroxyls. Nature Protocols, 2(5), 1052–1058. https://doi.org/10.1038/nprot.2007.154

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