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Prediction of tertiary structure of VP1 protein. (A) Three-dimensional structure of VP1 protein after modeling. (B, C) Comparison of VP1 protein of PTV JS2021 with VP1 protein of classic strain PTV-8jinlin/2003, in which red represents amino acid at position 129. Among them, green stands for PTV JS 2021. Light blue represents PTV-8jinlin/2003.
