Figure 3
Superimposed stick structures of the lysozyme–(GlcNAc)4 complex (CPK colors with green for carbon; complex in D2O) and of lysozyme without ligands (olive; lysozyme alone) where only NAG4 is drawn as a wire model for clarity. O atoms of water molecules both in lysozyme alone and in the complex in D2O are illustrated as olive and red balls, respectively. NAG4/A and OD2/ASP52/A are in the A conformation. In contrast, four water molecules and OD2/ASP52/B are located in the B conformation. OD2 of Asp52 in lysozyme alone overlaps with OD2/ASP52/B. The blue contour lines correspond to 2Fo − Fc maps at 1.5σ for the complex in D2O, except for (GlcNAc)4. |