Figure 3
(a) Ribbon diagram of the PfPNP hexamer with individual subunits coloured and with bound inosine molecules in liquorice representation (red). The hexamer was generated by application of crystallographic symmetry operations. The view is approximately down the threefold axis. (b) A PfPNP–ino dimer pair corresponding to subunits A and F with the active sites facing each other. The view is approximately down the twofold axis. |