 | Acta Crystallographica Section D Acta Crystallographica Section D BIOLOGICAL CRYSTALLOGRAPHY |
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![[Figure 1]](li0361fig1mag.jpg)
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Figure 1
Three-dimensional structure of the con A monomer. Overlay of the crystal structures of ZnCapH6.15 con A (blue, colour ramped from light to dark blue for low to high temperature factors; PDB entry 3enr ), CdCdpH5.0 con A in orange (PDB entry 2enr ) and metal-freepH5.0 con A in green (PDB entry 1apn ) via superposition of the 119 β-sheet residues of con A. The metal ions of ZnCapH6.15 con A, where zinc and calcium occupy the S1 and S2 sites, respectively, are displayed as blue spheres. A secondary Zn2+-binding site S4 is created by the crystal packing. The packing-independent Cd2+-binding site S3 is empty in the structure of CdCdpH5.0 con A at pH 5. Residues at discussed loops are numbered to allow the localization of these loops. |
![[Figure 1]](li0361fig1.jpg)
| BIOLOGICAL CRYSTALLOGRAPHY |
ISSN: 1399-0047
