Figure 6 - full size

 

Figure 6.
FIGURE 6. Active site of HSV-1 D88N/H210N UNG. A, the amino acid residues in the active site of HSV-1 D88N/H210N UNG (green, carbons; blue, nitrogen; red, oxygens) are aligned with those of the wild-type enzyme (purple). Electron density for HSV-1 D88N/H210N UNG is shown. B, HSV-1 D88N/H210N UNG with uridine bound in the active site is aligned with the wild-type enzyme with uracil bound in the active site (purple). Electron density for HSV-1 D88N/H210N UNG is shown. C, hydrogen bond distances between the residues in the HSV-1 D88N/H210N UNG active site and the bound uracil are shown in red, whereas those in the active site of the wild-type enzyme are shown in black.

The above figure is reprinted by permission from the ASBMB: J Biol Chem (2006, 281, 4983-4992) copyright 2006.