Figure 6.

AfGspE hexamer structures in solution by SAXS. (A) Hexameric crystal structure (left), all-closed hexamer model (center), and all-open hexamer model (right). (B) X-ray scattering of the AMP-PNP bound (green) and ADP bound (blue) hexamers compared to profiles calculated from the crystal structure (red line) (top, left and right), the all-closed model (bottom left, blue line) and the mixture of crystal structure, all open hexamer, and all closed hexamer models (bottom right, orange line). The scattering data includes the error bars (gray), however, as the error is about ∼4% even in the highest angle region, it is almost invisible.