Figure 8.

Water molecules observed on the hydrophobic surface of HEWL at 890 MPa. (a) Hydration structure around Ile78 and Pro79. (b) Hydration structure around Phe34, Phe38 and Trp123. Upon increasing the pressure, several water molecules appear and form a hydrogen-bond network with each other over the hydrophobic surface. The surface in red is negatively charged, that in blue is positively charged and that in white is neutral. Water molecules found only at 0.1 MPa are coloured green, those found only at 890 MPa are coloured purple and those found at both 0.1 and 890 MPa are coloured cyan.