Fig. S2.
(A) Alignment of the lectin domains of MHV-S (carbon in purple) and RCoV-NJ HE (carbon in gray) with 4-O- and 4-N-Ac-Sia bound, respectively. (B) Side-by-side comparison of two type II HE lectin metal-binding sites. In MHV-S HE the site is occupied by K+ (magenta sphere), in RCoV-NJ HE by Na+ (purple sphere).
