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Figure 6.
Figure 6. Stereo diagram of the BcnI active site in complex
with DNA. BcnI active site residues are shown in all-atom
representation, metal ions are presented as black and grey
spheres, and some key water molecules are shown as red spheres.
The 5′-end of the DNA is on the right and the 3′-end is on
the left. The 2F[o]–F[c] density was contoured at 1.5 σ and
is shown only around the DNA and the nucleophilic water
molecule. The assignment of the metal ion that is shown without
detailed coordination is very uncertain.
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