Figure 1.

(a) Structure factor of dry dGFP and dGFP D₂O at 170 and 295 K from CNCS. The solid red line (in panel a) is an example of the structure factor fit as used in the subsequent analysis of the Q-dependence of S(Q,E). The peaks at Q > 1.6 Å⁻¹ indicate a small fraction of the hydration water has crystallized at 170 K. (b) The structure factor of dry dGFP at 170 K (symbols), superimposed with the calculated structure factor based on the deposited Protein Data Bank file, PDB:1GFL (red). (Blue line) Structure factor calculated for the atoms in the β-barrel of GFP. To see this figure in color, go online.