Figure 19-3: Panel A shows the crystal structure of the D15 exonuclease or flap endonuclease. A conceptual model of a bound DNA flap substrate is shown (13, 19). Panel B shows endo- (black arrow) and exo-nucleolytic modes (open arrow) of DNA cleavage and gapping reactions at a nick. (for better image quality, click here for tif image, which may be quite large; may also require screen refreshing plus special software to view; or view larger tif in separate window)

Figure 19-1, Figure 19-2, Figure 19-3, Figure 19-4

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