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. 2017 Sep 8;8:492. doi: 10.1038/s41467-017-00536-1

Fig. 2.

Fig. 2

S4-S16 complexes sample the non-native conformation in physiological Mg2+. Populations of native (high FRET) and flipped (low FRET) complexes containing 5′ domain h3-Cy7, S4-Cy5, and S16-Cy3 in 20 nM S20, at different Mg2+ concentrations. Histograms for Cy5-Cy7 FRET are based on a 68, b 97, and c 105 trajectories from three-color smFRET experiments as in Fig. 1