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Complete Genome of a Novel Porcine Astrovirus
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ABSTRACT
Astroviruses have been widely described in mammalian and avian species. Here, we report a complete genome sequence of a novel porcine astrovirus (PoAstV) isolated from a porcine fecal sample in China. The genome consists of 6,611 nucleotides, excluding the 3′ poly(A) tail, and has two open reading frames (ORFs). ORF1 maps between nucleotide positions 19 and 4211 and encodes a 1,396-amino-acid (aa) polyprotein precursor consisting of nonstructural protein and putative RNA-dependent RNA polymerase, and ORF2 maps between nucleotide positions 4202 and 6531 and encodes a 775-aa polyprotein which is a capsid precursor protein. The genome sequence of the virus was distinct enough from those of the known PoAstVs to be considered a novel sequence. Phylogenetic analysis based on the predicted amino acid sequence of the complete capsid region showed that this strain may be a novel porcine astrovirus.
American Society for Microbiology
Title: Complete Genome of a Novel Porcine Astrovirus
Description:
ABSTRACT
Astroviruses have been widely described in mammalian and avian species.
Here, we report a complete genome sequence of a novel porcine astrovirus (PoAstV) isolated from a porcine fecal sample in China.
The genome consists of 6,611 nucleotides, excluding the 3′ poly(A) tail, and has two open reading frames (ORFs).
ORF1 maps between nucleotide positions 19 and 4211 and encodes a 1,396-amino-acid (aa) polyprotein precursor consisting of nonstructural protein and putative RNA-dependent RNA polymerase, and ORF2 maps between nucleotide positions 4202 and 6531 and encodes a 775-aa polyprotein which is a capsid precursor protein.
The genome sequence of the virus was distinct enough from those of the known PoAstVs to be considered a novel sequence.
Phylogenetic analysis based on the predicted amino acid sequence of the complete capsid region showed that this strain may be a novel porcine astrovirus.
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