Observation of Global Changes in Conformation of an RNA Kissing Complex using Single-Molecular-Pair FRET
نویسندگان
چکیده
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Observation of a Change in Bend of an RNA Kissing Complex Using the Angular Dependence of Fluorescence Resonance Energy Transfer
We report on the observation of a change in the bend angle of an RNA kissing complex upon Rop binding using single-molecular-pair FRET. The angular relationship between the dyes, rather than the distance between them, is shown to be responsible for the observed change in energy transfer. It has long been thought that Rop increases the bend angle of the R1invR2inv complex upon binding, but this ...
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The fluorescent probe, 2-aminopurine-2'-O-methyl riboside (2-AP) has been selectively incorporated at adenosine positions in stem-loops (so called R1inv and R2inv), derived from the ColE1 plasmid encoded RNA I and RNA II transcripts, that interact to form stable loop-loop kissing complexes and bind the RNA one modulator (Rom) protein, such that fluorescence-detected stopped-flow and equilibrium...
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ژورنال
عنوان ژورنال: Biophysical Journal
سال: 2014
ISSN: 0006-3495
DOI: 10.1016/j.bpj.2013.11.1663