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Knock it off: Individual RNA nucleotides with a caged nucleobase were incorporated, through their phosphoramidites, into a 160-mer RNA molecule that adopts a specific tertiary structure (see picture). Position-dependent local and global effects on RNA structure were observed, and photocleavage of the caging group was seen to restore the native folding.
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Höbartner et al. (2005) studied this question.
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