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. 2012 Oct 25;41(1):487–497. doi: 10.1093/nar/gks942

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© The Author 2012. Published by Oxford University Press.

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Figure 3. — Annealing acceleration activity and double-strand stabilization activity of Tat-derived peptides do not correlate. (A) Sequences of scrambled peptides scr1-3, based on Tat(44-61) wildtype sequence (WT). (B) Observed annealing constants k_ann of scr1-3 as measured using the FRET-based annealing assay. (C) The Tat peptide and the scrambled peptides increased the stability of double-stranded 21R RNA (and thus the melting temperature) as was measured with UV melting. α(T) = folded(T) / (unfolded(T) + folded(T)).