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Mapping the structure of nucleic acids: Pulsed electron–electron double-resonance (PELDOR) spectroscopy has been applied for the first time to map the global structure of nucleic acids inside Xenopus laevis oocytes (see picture). The distances measured in vitro and in cells are the same, which implies the existence of stable overall conformations of the hairpin RNA and the neomycin-sensing riboswitch studied. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Krstić et al. (Tue,) studied this question.