Configurations of coiled-coil.

<p>The configurations in (a), (b), (c) and (d) correspond to those at point a, b, c and d in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0036071#pone-0036071-g003" target="_blank">Figure 3</a>, respectively. The hydrophobic residues in orange are residues Leu345 and in green are residues Val342. Each pair of these residues are attracted via hydrophobic interaction. Hydrogen bonds in the helix are represented by blue dash lines. From <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0036071#pone-0036071-g004" target="_blank">Figure 4a to 4b</a>, the pair of residues Leu³⁴⁵ was unwound and the unwound helix was unfolded via breaking one hydrogen bond (the blue dash line indicated by the arrow, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0036071#pone-0036071-g004" target="_blank">Figure 4</a>). From <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0036071#pone-0036071-g004" target="_blank">Figure 4c to 4d</a> the pair of residues Val³⁴² were unwound and the unwound helix was unfolded via breaking one hydrogen bond.