Figure 3 - full size

Figure 3.
Figure 3. Stereo ribbon plot of the CKS dimer viewed along the molecular 2-fold axis. Subunit B (blue) is at the top. In the crystals this subunit binds the nucleotides and the analog CMP-NeuAc (here displayed). The domains are given in different hues. The exceptional left-handed connection between b6 and b7 is marked red, it connects the two domains. The bulge residues of b10 are marked by balls.