Figure 2.
Dimer interface. (A) Stereoview of the dimer interface. For clarity, only side chains of residues at the core of the interface are shown. Color coding of the secondary structures is the same as in Fig. 1A. (B) 2Fo − Fc electron density, contoured at 1.2σ, for the hydrogen bond circle of Tyr-26 and Asp-25′ at the dimer interface.
