2006
DOI: 10.1002/cbic.200500271
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Dynamics of Formation of a Helix–Turn–Helix Structure in a Membrane‐Active Peptide: A Time‐Resolved Spectroscopic Study

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Cited by 30 publications
(37 citation statements)
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“…A lifetime distribution analysis (those for F0T8 and F0T8-Gd III are reported in Figure 4) confirms that-in close similarity with F0T8-the ion-peptide complexes populate two distinct families of conformers. This finding, together with the CD results, supports the view of the onset of a conformational [14,15] From the data reported in Table 1 and from inspection of Figure 4, we can also argue that this conformational equilibrium is strongly affected by the ion binding process. In particular, the pre-exponential factor a 1 increases from 0.14 for the free peptide (a 2 = 0.86) to 0.27 for the F0T8-Ca II complex (a 2 = 0.73) and 0.47 for F0T8-Gd III (a 2 = 0.53).…”
Section: Fluorescence Experimentssupporting
confidence: 88%
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“…A lifetime distribution analysis (those for F0T8 and F0T8-Gd III are reported in Figure 4) confirms that-in close similarity with F0T8-the ion-peptide complexes populate two distinct families of conformers. This finding, together with the CD results, supports the view of the onset of a conformational [14,15] From the data reported in Table 1 and from inspection of Figure 4, we can also argue that this conformational equilibrium is strongly affected by the ion binding process. In particular, the pre-exponential factor a 1 increases from 0.14 for the free peptide (a 2 = 0.86) to 0.27 for the F0T8-Ca II complex (a 2 = 0.73) and 0.47 for F0T8-Gd III (a 2 = 0.53).…”
Section: Fluorescence Experimentssupporting
confidence: 88%
“…[14,15] It has been shown that for Fmoc···TOAC centre-tocentre distances longer than 4-5 , the Fçrster dipole-dipole interaction model [27] adequately describes the excited state interaction between the aromatic molecule and the nitroxyl radical quencher. [28] At shorter distances, the overlap of the electronic distributions gives rise to ultrafast relaxation mechanisms that completely deplete the fluorescence emission.…”
Section: Fluorescence Experimentsmentioning
confidence: 98%
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