Figure 4From: A homology model of restriction endonuclease SfiI in complex with DNASuperposition of SfiI and BglI structures. The predicted active site of SfiI (in blue) superimposed onto the BglI structure (red) Individual subunits are shown in yellow and blue. The Ca2+ ions from the BglI structure are shown as cyan spheres. Only the two nucleotides adjacent to the scissile phosphodiester bond are shown.Back to article page