Figure 1
An omit difference electron-density map for Glu118 calculated with coefficients (Fo − Fc) and contoured at 3σ (magenta) revealing the hydrogen-bonding (yellow dashed lines) pattern that defines the side-chain properties. Fo and Fc represent the observed and calculated structure factors, respectively. The refined model is shown in sticks with O atoms in red, N atoms in blue and C atoms in white. All figures were prepared using PyMOL (DeLano, 2002). |