Figure 1From: Lineage specific antigenic differences in porcine torovirus hemagglutinin-esterase (PToV-HE) proteinSequence analysis of HE proteins from PToV strains representative of both lineages. (A) Multiple alignments of HE sequences. (B) Modeling over the Markelo HE structure (in red) of amino acid residues differing between Markelo and P4 lineages (in blue).Back to article page