
The density plots and the predicted structures for the 74-nt 5′ header of an R2 retrotransposon at different temperatures. Stem S3 is the most stable stem, which is the last one to be unzipped. At room temperature, the predicted structure shows the highest SE = 1.0 and SP = 1.0 as tested against the experimental NMR structure (Hart et al. 2008).










