 | Acta Crystallographica Section D Acta Crystallographica Section D BIOLOGICAL CRYSTALLOGRAPHY |
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![[Figure 3]](mh5108fig3mag.jpg)
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Figure 3
Organization of internal water molecules. (a) Two water channels connecting the ligand-binding cavity to bulk solvent. (b) Two structural water molecules in human P2. Left: the orientation of water 215. Grey, 2Fo − Fc map at 4.0σ; magenta, Fo − Fc map at 2.4σ. Right: water 1. Grey, 2Fo − Fc map at 4.0σ; magenta, Fo − Fc map at 2.7σ. The hydrogen bonds donated by the water are shown in pink and those accepted are in light blue. The potential C—H⋯O bond between water 215 and Phe70 is indicated in yellow. (c) The hydrogen-bonding network involving the internal water molecules. Only three H atoms from water molecules were not seen in electron density and their respective positions can be deduced geometrically (green). The observed C—H⋯O bonds are shown in orange. The three central residues for fatty-acid binding are in blue and the polar terminus of the fatty acid is in red. Water 38 is connected to bulk solvent (magenta wave) through the channel between β-sheets 4 and 5. |
![[Figure 3]](mh5108fig3.jpg)
| BIOLOGICAL CRYSTALLOGRAPHY |
ISSN: 1399-0047
