Sequence comparisons. (A) A short segment from the native sequence of glycoprotein B, human herpesvirus 5, is compared with the consensus sequence used for BLAST searching. Solid lines between the 2 represent identity. Dotted lines represent conserved substitutions. “X” represents an amino acid position that could not be identified from the phage display data. (B) A similar comparison of the consensus motif from patient 20, motif 1 to the UL-48 gene product sequence.