Figure 15

Overlap of site-A (suramin) and site-B (PPNDS) on the norovirus RdRp. Superposition of the MNV RdRp structure (dark green ribbon) in complex with suramin (carbon atoms in dark purple) and the human norovirus RdRp structure (salmon ribbon) in complex with PPNDS (carbon atoms in pink). 54 (carbon atoms in lilac) occupies the central core of site-B and extends up to the initial part of site-A (Arg392 area), where suramin places its sulphate head.