Figure 5 - full size

Figure 5.
FIGURE 5. Enlarged stereo representation showing intermolecular interactions in the double mutant complex. Residues involved in the intermolecular direct hydrogen bonds (2.2-3.5 Å) are shown in stick models and labeled. The hydrogen bonds are indicated by red dotted lines. A, subunits B and D in the formation stage 1; B, subunits A and C in the product stage.