Figure 2
Comparison of deposited (a, b) and corrected (c, d) models of the WD40-repeat domain from T. curvata. Three molecules in the asymmetric unit of the deposited crystal structure were rotated about a sevenfold pseudo-symmetry axis of the structure (a, c), resulting in a number of clear density outliers in the model, for example Trp A/503 and Arg A/505 as labelled in (b). Correcting the molecule rotation results in a much better fit to the data (d). The model fragments shown in (b) and (d) are indicated by dashed circles in (a) and (c), respectively. The combined 2mFo − DFc (blue) and difference mFo − DFc (red/green) maximum-likelihood maps calculated using REFMAC5 are shown at 1.5σ and 3σ levels, respectively. |