File:Cre crystal structure.png

Taken from: Jurica MS, Monnat RJ, Stoddard BL. (1998) DNA Recognition and Cleavage by the LAGLIDADG Homing Endonuclease I-CreI. Molecular Cell. 2:469-476.

Copyright 1998 Cell Press.

Fair use rationale: this is only one figure out of the Jurica et al. paper, and it therefore does not threaten the market for the paper. There is no reasonable substitute for this figure in the Wikipedia I-CreI article. It is used for educational purposes and not for commercial purposes.