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Superposition of ETX2514 and avibactam OXA-24/40 complexes. The avibactam OXA-24/40 complex (PDB ID 4wm9 [38]) is colored orange; the ETX2514 complex is colored as described in the legend to Fig. 5. The C3 atom for ETX2514 is labeled; the two conformations of K84 are labeled a and b. Crystallographic water molecules observed in the two structures are shown as spheres (colored red and orange for the ETX2514 and avibactam OXA-24/40 complexes, respectively).
