 | Acta Crystallographica Section D Acta Crystallographica Section D BIOLOGICAL CRYSTALLOGRAPHY |
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![[Figure 2]](en5255fig2mag.jpg)
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Figure 2
Percentage of metal sites in which the amino-acid side-chain functional group is present as an electron-donating group. Statistics are only given for the amino-acid residues that most often participate in metal coordination (Asn, Asp, Cys, Gln, Glu, His, Met, Ser, Thr and Tyr). The metal ions are grouped according to the similarity of their coordination spheres: Cu2+, Fe2+ and Ni2+ (top), Zn2+ and Cd2+ (middle) and Ca2+, Mn2+, Mg2+ and Co2+ (bottom). |
![[Figure 2]](en5255fig2.jpg)
| BIOLOGICAL CRYSTALLOGRAPHY |
ISSN: 1399-0047
