Figure 5
Room-temperature SSX crystal structures of class B and D β-lactamases. (a) Crystal structure of DBL from C. pinensis determined at 1.80 Å. (b) Crystal structure of class L1 MBL from S. maltophilia determined at 1.85 Å. 2mFo − DFc electron density maps calculated for active sites of C. pinensis DBL (c) and L1 MBL (d). Difference electron density maps contoured at the 1.2σ level. |