Fig. 1.

Comparison of aligned motifs within derived domains (Koonin et al., 1992) from different HEV isolates and rubella virus. The moose HEV is highlighted in grey. Red letters represent non-consensus residues, asterisks mark identical residues, : marks HEV-specific residues and blue letters represent unique moose HEV residues. (a) The X domain; underlined letters represent putative ADP ribose binding sites and green letters represent the active site. (b) The helicase domain; underlined letters represent putative ADP ribose binding sites and green letters represent Mg²⁺ binding sites. (c) The RNA dependent RNA polymerase domain; green letters represent the active site.