Figure 4 - full size

 

Figure 4.
Figure 4. The N517Q mutation in the G design induces a backbone shift in the DNase. Overlay of the design model (teal and yellow side-chains) with the experimentally determined structure (magenta and orange side-chains). The Q517 side-chain in the G design crystal structure does not displace a tightly bound water molecule (magenta, W12) resulting in a backbone shift to accommodate a different Q side-chain rotamer. The immunity protein backbones are colored in gray.

The above figure is reprinted by permission from Elsevier: J Mol Biol (2006, 361, 195-208) copyright 2006.