Figure 6
Experimental electron-density maps after phasing and density-modification with SHARP and SOLOMON, viewed down the unit-cell c axis. (a) Electron density for data processed in I4122. Interpretable electron density only accounts for 10% of the unit cell, with disordered density evident related by translations consistent with the native Patterson analysis. (b) Electron density for data processed in I212121. Density accounts for all predicted 24 monomers in the asymmetric unit. The unit cellis translated one quarter along the b axis compared with (a). Twofold axes are shown in yellow and 21 screw axes in green; 41 screw axes are indicated by green squares and 43 screw axes by blue squares. This figure was produced with PyMOL (DeLano, 2002). |