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Figure 8.
Quality of the electron density and DNA duplex conformations
at the active sites in the ternary complexes. A, Dpo4-dG; B,
Dpo4-dA; C, Dpo4-dC; D, Dpo4-ddG; E, Dpo4-ddC. The views are
into the major groove, Fourier (3F[o] - 2F[c]) sum electron
density is drawn at the 1σ level, Ca^2+ ions are yellow
spheres, and phosphorus atoms of the α-, β-, and γ-phosphate
groups of (d)dNTPs are highlighted in cyan, gray, and white,
respectively.
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