Research Article
Genomic Characterization and Pathogenicity of BJEU06-1-Like PRRSV-1 ZD-1 Isolated in China
Figure 3
The alignment of Nsp2, GP3, and GP4 protein aa sequences of Chinese PRRSV-1 strains. (a) Alignment of the partial Nsp2 aa sequences of PRRSV-1 strains. Purple indicates the characteristic BJEU06-1-like PRRSV-1 5-aa (4 + 1) discontinuous deletion. (b) Alignment of the partial ORF3 aa sequences of Chinese PRRSV-1 strains. (c) Alignment of the partial ORF4 aa sequences of Chinese PRRSV-1 strains. The aa deletion regions are marked in blue or yellow. Two mutational hotspots, 237–352 in GP3 and 60–67 in GP4, are indicated by green boxes. Termination codons are indicated by an asterisk (∗). The 26 aa C-terminal truncation mutants are shaded in red. The ZD-1 strain is marked with a red star (★).
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