A list of virus species having RdRp structures in the PDB, observed non-catalytic ion types, and distances of non-catalytic ions from the catalytic site.

1Abbreviations used: RHV, rabbit hemorrhagic virus; BVDV, bovine viral diarrhea virus; Qβ, enterobacteria virus Qβ; FMDV, foot-and-mouth disease virus; coxsackie virus, human enterovirus B; IBDV, infectious bursal disease virus; φ6, pseudomonas phage φ6; reovirus, mammalian orthoreovirus.
2The viral species for which a non-catalytic metal was found are in bold.
3PDBids are given only for structures that include a non-catalytic ion.
4Structures used for the determination of the distances are in bold.
5Structures were structurally aligned with the hepatitis C virus RdRp structure (PDBid: 2WHO). Distances were measured from catalytic ion A of the hepatitis C virus RdRp.