Figure 3.

R1–R7 packing contacts in the P1 crystal. Three R1–R7 fragments are represented in orange, the reference molecule and in yellow, the neighbour molecules in the crystal. The different boxes show the details of the interactions established between the different domains. Residues directly participating in hydrogen bonds or in hydrophobic contacts are shown as sticks and are explicitly labelled. The largest network of interactions involves R1 and R2 domains. R7 does not participate in lateral packing contacts.