Figure 6.

The footprint of the CD155 on the PV surface, defined by those residues on the viral surface that have any atoms within 4 Å of any atom in the receptor. (Inset) One icosahedral asymmetric unit with the footprint outlined and the limits of the canyon. (Left) The footprint on the virus (the canyon has a black outline). (Right) The residues of CD155 in contact with the viral surface. Each residue is colored in accordance with its chemical properties: green, hydrophobic; yellow, hydrophilic; red, acidic; and blue, basic.