Figure 3
Structures of the pentagonal hydrogen-bond networks in AR3 at room and cryogenic temperatures. The pentagonal hydrogen-bond networks in the DA (PDB entry 6s63) and LA (PDB entry 6guz) states of AR3 at room temperature are shown in (a) and (b), respectively, while in (c) and (d) the pentagonal hydrogen-bond networks in the DA (PDB entry 6gux) and LA (PDB entry 6s6c) states of AR3, respectively, at cryogenic temperatures are shown. Water molecules are shown as red spheres and predicted hydrogen bonds are shown as dashed yellow lines. The blue mesh represents the 2Fobs − Fcalc electron-density map contoured at 1.5σ. Omit maps are shown in Supplementary Fig. S4. |