 | Acta Crystallographica Section D Acta Crystallographica Section D BIOLOGICAL CRYSTALLOGRAPHY |
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![[Figure 3]](ba5043fig3mag.jpg)
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Figure 3
Distinct orientation of the tungsten clusters in the crystal. (a) Anomalous difference Fourier density calculated for the peak data set (cycle 1) using data between 15 and 4.3 Å with the coefficients (|Fpeak+| − |Fpeak−|) and phases αmolrep − 90°. The electron density is contoured at 1.5σ in maroon for cluster 1 and slate blue for cluster 2. The W atoms are indicated as white crosses and the central phosphate atoms are shown as green crosses. (b) Atomic model for the 12-tungstophosphate cluster based on a small-molecule structure determined by Gabriel et al. (1997  ). W atoms are shown in white, O atoms in red and the phosphate atom in cyan. |
![[Figure 3]](ba5043fig3.jpg)
| BIOLOGICAL CRYSTALLOGRAPHY |
ISSN: 1399-0047
