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Figure 1
Detail of PDB entry 1lf2 after one round of manual optimization (a) and the final model (b) in 2mFoDFc electron-density maps (contoured at 2.0σ) and mFoDFc difference density (contoured at 4.0σ). Based on the crystallization conditions described in Asojo et al. (2002BB1), the tetrahedral difference-map peak in (a) was modelled as a sulfate. Lys238A was modelled as an arginine based on the (difference) density map contours. The H of this arginine in (b) makes a hydrogen bond to the backbone carbonyl of Leu242A. The figures were created with Coot (Emsley & Cowtan, 2004BB9) and Raster3D (Merritt & Bacon, 2007BB24).

Journal logoBIOLOGICAL
ISSN: 1399-0047
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