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. Author manuscript; available in PMC: 2012 Oct 18.
Published in final edited form as: Biochemistry. 2011 Sep 22;50(41):8792–8803. doi: 10.1021/bi200971x

Figure 2.

Figure 2

a) The 90 K x-ray crystal structure of BtuB T156R1 (PDB ID: 3RGM) determined at 2.6Å showing the R1 side chain (in a stick representation) and the positions of the nearest neighbor residues in a Corey, Pauling Koltun rendering. In b) and c) are shown alternate views of the site around T156R1, with the van der Waals surface shown in grey. In b) the 2Fo-Fc electron density is shown as blue mesh contoured at 1σ. Data collection and refinement statistics are given in Table 1.