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Structure of the DegP12 oligomer viewed along the threefold (A) and approximate twofold (B) axes. Each trimer is represented in a different color. Images on the right show one of the DegP monomers as a ribbon representation docked into a semitransparent volume. Labels for this monomer follow the same color code used in Fig. 1. These images were prepared from PDB file 2ZLE by using the EMAN (25) and Chimera (28) programs as described in the legend to Fig. 2. Prot, protease domain.
