Figure 1 - full size

Figure 1.
Figure 1. GMPPNP Binding to the NG DomainOmit difference (F[o] - F[c]) electron density maps contoured at 3 s (light blue) and 6 s (dark blue) for (a) structure N1 and (b) structure N2a. The triplet of electron-dense peaks to the right in each image indicates the positions of the phosphate groups. Two residues, Gln107 and Thr112, define the top and bottom of the P loop jaws