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Clustal X Alignment of the major heparan sulfate-binding domain of HSV-1 gC with that of the MDV UL44 gene product. Conserved cysteines (white letters on black) and basic amino acids (grey background) are shown. Underlined amino acids have a central role in heparin sulfate binding in HSV-1 (41). Gaps introduced to maximize alignment are indicated by dashes, and conserved positions are marked by periods and colons. Asterisks indicate fully conserved residues.
