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Figure 4.
Fig. 4. Active site of LigD Pol. Stereo views are shown of
the active site constituents of the apoenzyme (A), the Mn-ATP
cocrystal (B), and the Mn-dATP cocrystal (C). Potential
hydrogen-bonding interactions are denoted by dashed lines.
Manganese ions and waters are rendered as blue and red spheres,
respectively. Amino acids and sulfate (A), ATP (B), or dATP (C)
ligands are labeled and shown in stick representation.
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