Abstract
We introduce a melded chemical and computational approach for probing and modeling higher-order intramolecular tertiary interactions in RNA. 2?- molecular interference (HMX) identifies nucleotides in highly packed regions of an RNA by exploiting the ability of bulky adducts at the 2?-hydroxyl position to disrupt overall RNA structure. HMX was found to be exceptionally selective for quantitative detection of higher-order and tertiary interactions. When incorporated as experimental constraints in discrete molecular dynamics simulations, HMX information yielded accurate three-dimensional models, emphasizing the power of molecular interference to guide RNA tertiary structure analysis and fold refinement. In the case of a large, multidomain RNA, the Tetrahymena group I intron, HMX identified multiple distinct sets of tertiary structure interaction groups in a single, concise experiment.
Original language | English (US) |
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Pages (from-to) | 6825-6833 |
Number of pages | 9 |
Journal | Biochemistry |
Volume | 53 |
Issue number | 43 |
DOIs | |
State | Published - Nov 4 2014 |
All Science Journal Classification (ASJC) codes
- Biochemistry