A specificity switch in selected cre recombinase variants is mediated by macromolecular plasticity and water.
Baldwin, E.P., Martin, S.S., Abel, J., Gelato, K.A., Kim, H., Schultz, P.G., Santoro, S.W.(2003) Chem Biol 10: 1085-1094
- PubMed: 14652076 
- DOI: 10.1016/j.chembiol.2003.10.015
- Primary Citation of Related Structures:  
1PVP, 1PVQ, 1PVR - PubMed Abstract: 
The basis for the altered DNA specificities of two Cre recombinase variants, obtained by mutation and selection, was revealed by their cocrystal structures. The proteins share similar substitutions but differ in their preferences for the natural LoxP substrate and an engineered substrate that is inactive with wild-type Cre, LoxM7 ...