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Length of genome (Sauvage et al., 2012, Boros et al., 2015, Yu et al., 2013): c. 6,938 nt (5'-UTR: c. 420 nt; ORF: c. 6,402 nt; 3' UTR: 136 nt). The location of the cre has not been identified.
The deduced polyprotein has a length of c. 2,133 aa. There is no L protein. 1AB protein remains uncleaved. The aphthovirus-like 2A1 protein has a NPG¯P sequence motif; the function of 2A2 is unknown. 3Dpol has a deviant ASG motif.
The natural host is likely the domestic pig (Sus scrofa). Viral RNA has been detected in faeces of pigs.
Members of a species of the genus Pasivirus:
The divergence (number of differences per site between sequences) of known Pasivirus species ranges from 0.66-0.67 for P1 and 0.63-0.64 for 3CD.
Three types have been classified by means of phylogenetic clustering.
Pasi-: from parecho sister-clade
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