Figure 3: Structure of AtClpD N-terminal domain.

(A) Cartoon representation of the structure of A. thaliana ClpD NTD with the helices (red) and loops (orange). The N and C termini as well as the seven α-helices are labeled. The four-residue long stretch in the long middle loop (that could not be seen in electron density) was fitted into the structure and is shown with intermittant gaps. (B) Structural alignment of AtClpD NTD (red helices and orange loops) with AtClpC1 NTD (blue helices and green loops). The N and C termini as well as α3 of AtClpC1 NTD are labeled.