 | Acta Crystallographica Section D Acta Crystallographica Section D BIOLOGICAL CRYSTALLOGRAPHY |
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![[Figure 2]](ba5125fig2mag.jpg)
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Figure 2
Detail of PDB entry 1zcs after automated re-refinement. The carbonyl atoms of Glu20A were modelled with 50% occupancy but without any alternate atom positions by Thapper et al. (2007  ). This results in a positive mFo − DFc difference-map peak on this carbonyl group, contoured here at 3.0σ. The difference-map peak disappeared after setting the atomic occupancies to 1.00. |
![[Figure 2]](ba5125fig2.jpg)
| BIOLOGICAL CRYSTALLOGRAPHY |
ISSN: 1399-0047
