Figure 1 - full size

 

Figure 1.
Fig. 1. Relative orientation of the N-terminal and C-terminal domains in CaM as early observed by x-ray in the absence of target peptides (A; extended conformation) and as observed in the presence of target peptides (B; closed conformation). Labels N4 and C1 indicate the fourth helix of the N-terminal domain and the first helix of the C-terminal domain, respectively.