Abstract
Porcine circular single-stranded DNA viruses have been just identified from swine feces in Korea. This virus was mentioned as bovine stool-associated circular DNA virus (BoSCV)-like virus discovered from porcine stools. However, the thorough characteristics of the virus were not identified. Therefore, this research focuses on finding a full genome sequence and analyzing the genetic features of the virus. The virus, now called porcine stool-associated circular DNA virus in Korea (PoSCV Kor), consists of 2,589 bases forming circular structure. It has two major ORFs inversely encoding replicase and capsid protein, with each stem-loop structure between 5' ends and 3' ends of the two putative ORFs. This characteristics is the same as PoSCV in New Zealand, but different from chimpanzee stool-associated circular virus (ChiSCVs) and BoSCV, which have one stem-loop structure. Therefore, it would be sure that PoSCV Kor is very similar to PoSCV in respect to the genetic aspect; the same number of nucleotide bases and the amino acid identity of replicase and capsid protein (96 and 93 %, respectively). This fact could be certified through the finding that PoSCV Kor and PoSCV are in the same cluster by phylogenetic analysis based on the comparison with full-sequences of other circular ssDNA viruses.
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