Fig. 3From: Genetic characterization of 11 porcine reproductive and respiratory syndrome virus isolates in South China from 2014 to 2015Alignment of the GP5 amino acid sequences of isolated PRRSV strains. The signal peptide, transmembrane region1, 2 and 3(TM1, TM2 and TM3), extravirion region, intravirion region and primary neutralizing epitope (PNE) were indicated by a dotted box Back to article page