Figure 3 - full size

Figure 3.
FIG. 3. Ribbon diagrams of a representative MexA structure. A, stereo side view of the structure of the tridecamer. Heptamer and hexamer are colored red and blue, respectively. B, bottom view of Fig. 1A (hexamer). Each monomer is distinguished by alternatively changing the color to blue and gray, respectively. C, top view of Fig. 1A (heptamer). Each monomer is distinguished by alternatively changing the color to red and gray, respectively. The figures were drawn by MolScript version 2.1.2 (40) and Raster 3D version 2.7b (41).