Porcine Reproductive and Respiratory Syndrome Virus: Origin Hypothesis
Figure 1. Amino acid comparison of the GP5 ectodomains of lactate dehydrogenase-elevating virus–P, porcine reproductive and respiratory syndrome virus VR-2332, and porcine respiratory and reproductive syndrome virus Lelystad virus (GenBank accession nos. U15146, U87392, and M96262, respectively). *Indicates amino identity. The neutralization epitope is underlined. N-glycosylation sites are in boldface letters.