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![[Figure 5]](be5261fig5_combined_mag.jpg)
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Figure 5
The Alr active site. Stereoview of cofactor PLP and active-site residues in a 2Fo − Fc electron-density map contoured at 1.2σ for (a) CdAlrPLP (PDB entry 4lus) and (b) CdAlrK271T (PDB entry 4luy). (c) The fit of active-site residues in a 2Fo − Fc electron-density map contoured at 2σ for CdAlrcycloserine (PDB entry 4lut). (d) A stereoview of superposed residues in the active site of CdAlrK271T (gray) and CdAlrcycloserine (green). DCS is the covalent adduct of cycloserine and PLP, shown in magenta, and KCX is N-6-carboxyl-L-lysine. (e, f) Schematic plots of the interactions in the active sites of (e) CdAlrK271T and (f) CdAlrcycloserine. The interaction figures were generated with LigPlot+ v.1.4.5 (Laskowski & Swindells, 2011  ). |
![[Figure 5]](be5261fig5_combined.jpg)
 | STRUCTURAL BIOLOGY |
ISSN: 2059-7983
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