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Figure 3
OMIT maps for detecting the cleavage of the phosphodiester bond in the (a) 0 s, (b) 25 s, (c) 40 s, (d) 60 s and (e) 230 s structures. HindIII and the DNA molecules are shown as stick models. Water molecules are shown as small cyan-coloured balls. Sodium ions in the 0 s structure and manganese ions in structures of the crystals cooled at the other time points are shown as large balls. Electron-density contours are the same as in Fig. 2[link]. Part of the DNA structure of DA4–DA5 is omitted for the calculations.

Journal logoSTRUCTURAL
BIOLOGY
ISSN: 2059-7983
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