Figure 3 - full size

Figure 3. Figure 3. Cyclic-averaged electron-density map (contoured at 1s) of OmpK36. (a) Stereoview of the OmpK36 pore viewed from the extracellular side. Residues of the arginine cluster are labeled (OmpF numbering convention). The internal loop L3 is seen at the right side of the pore. (b) Stereoview of the extracellular loop L4 (with carbon atoms coloured in yellow), which interacts with loop L1 (carbon atoms coloured in white) of a neighbouring monomer. Figures were generated with the program DINO (Philippsen, 1998; http://www.bioz.unibas.ch/ not, vert, similar-xray/dino).

The above figure is reprinted by permission from Cell Press: Structure (1999, 7, 425-434) copyright 1999.