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Figure 3
The entrance of the isoprenoid diphosphate-binding site in (a) the wild-type and (b) the mutated enzyme. GPP molecules are shown as in Fig. 2[link]. Selected amino-acid residues are depicted in stick mode and colored C yellow, N blue, O red. Hydrogen-bonding interactions between the MECP synthase and GPP are displayed as red dashed lines and water molecules as red spheres. In (b) the white chicken wire represents an omit (2Fo − Fc) electron-density map corresponding to the mutated residues and contoured at the 1.4σ level. Fo and Fc represent observed and calculated structure factors, respectively.

Journal logoSTRUCTURAL BIOLOGY
COMMUNICATIONS
ISSN: 2053-230X
Volume 61| Part 7| June 2005| Pages 625-629
doi:10.1107/S1744309105018762
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