Figure 1
Crystal-packing diagram for TpCSH6. Subunits A–D in the monoclinic asymmetric unit are colored green, blue, purple and gold, respectively. Residues in the C-terminal appendage, shown as spheres in subunits A and D (indicated by arrows), occupy the active sites of subunits D and A, respectively. Left, ribbon rendering shows that the C-termini bind deep within the AB and CD dimers. In this orientation, the twofold screw axis (b axis) runs along the Cartesian x axis. |