Figure 2. Independently determined maps and fitted hexameric models of HAP-ClpP, BAPtrap-ClpP and ClpB.

(A) Negative stain EM map of HAP-ClpP. From left to right: surface side-view, AAA-1 layer and AAA-2 layer. The central channel enclosed by the AAA-2 ring is filled with density. (B) Cryo EM map of BAP-ClpP formed with the BAP variant that traps the substrate inside. (C) Cryo EM map of wild type ClpB alone.

DOI: http://dx.doi.org/10.7554/eLife.02481.009