FIGURE 4.
SecYEG dynamics on ∼100-ms time scales. Individual line scans are displayed (red indicates trace; blue indicates retrace). The time difference between trace and retrace is displayed for each pair of profiles. The first column (A–D) displays features that underwent significant conformational changes between trace and retrace. Specifically, the height differences were: 5, 8, 6, and 4 Å for A–D, respectively. In contrast, features in the second column (E–H) were quite stable. Vertical and horizontal scale bars are indicated.