FIGURE 8.

Small-angle x-ray scattering data and low-resolution structure of TssK1. A, experimental scattering data (dots) and the fitting curve (continuous line) calculated from an ab initio model of TssK1. B, Guinier plot (dots) with the linear fit (continuous line). C, distance distribution function of TssK1. D, SAXS envelope (light gray mesh) of the “best representative” model of TssK1. For comparison, the EM model shown in Fig. 7 (dark gray plain surface) is fitted in the SAXS envelope. Each view is rotated by 90° around the Y-axis. The scale bar is 3 nm.