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J Gen Virol. 1994 Jul;75 ( Pt 7):1785-8.

The complete sequence of a human astrovirus.

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  • 1Division of Virology, School of Pathological Sciences, University of Newcastle upon Tyne, U.K.


We have determined the complete genomic sequence of human astrovirus serotype 1 isolated in Newcastle upon Tyne. The genome is 6813 nucleotides long and contains three sequential open reading frames (ORFs). The two closest to the 5' end are linked by a ribosomal frameshifting motif and contain sequence motifs indicative of non-structural virus proteins: serine protease and RNA-dependent RNA polymerase. A nuclear addressing sequence is also located here. The 3' ORF encodes the virion structural polypeptides as a polyprotein precursor. This genomic organization resembles that of the plant virus family Luteoviridae.

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