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The genus is distinguished on the basis of genetic characters. The known anativiruses lack a functional 2A protein.
No details are available on the morphology of the virions.
Genome: (Tseng and Tsai 2007) 8226 nt (5'UTR: 425 nt; ORF: 7563 nt; 3'UTR: 238 nt). The location of the cre has not been identified.
The deduced polyprotein is of 2,521 amino acids. The predicted leader polypeptide of duck picornavirus is the longest known at 451 aa and suspected to be a trypsin-like protease. The L/VP0 cleavage and presence of a potential myristoylation site on VP0 is predicted for duck picornavirus (kQ/GqvqS) The 2A region is largely deleted with a residual 6 aa remaining.
Duck picornavirus was isolated from intestinal tracts of duckling with duck virus hepatitis [Insert citation as above (Tseng and Tsai, 2007) PMID 17686542]. The virus, however, could not produce hemorrhagic lesions in the liver and causes a less fatal disease.
Anativirus: from Anatidae, the family of birds that includes ducks, geese and swans.
There is only a single species in the genus.
quail picornavirus [QPV1/HUN2010]
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