PMID- 20979625 OWN - NLM STAT- MEDLINE DCOM- 20110131 LR - 20211020 IS - 1743-422X (Electronic) IS - 1743-422X (Linking) VI - 7 DP - 2010 Oct 27 TI - Molecular characterization of porcine circovirus 2 isolated from diseased pigs co-infected with porcine reproductive and respiratory syndrome virus. PG - 286 LID - 10.1186/1743-422X-7-286 [doi] AB - In this study, we isolated a porcine circovirus 2 (PCV2) strain from piglets co-infected with porcine reproductive and respiratory syndrome virus (PRRSV). The complete genome of this strain was sequenced, phylogenetic and polymorphic analyses were carried out. BLAST searches revealed the highest sequence identity (99.5% nt and 99.3% aa) to Guangxi strain EF675230. The phylogenetic tree showed that clustering of the isolates didn't strongly correlate to geographical distribution. Polymorphic analyses demonstrated that the amino acids at most of the polymorphic sites in Open Reading Frame 1(ORF1) and 2 (ORF2)belong to the same amino acid group according to chemical or structural properties, and revealed that highly polymorphic regions overlapped with the known immunoreactive epitopes of ORF2. FAU - Yi, Jianzhong AU - Yi J AD - Institute of Animal Husbandry Veterinary Sciences, Shanghai Academy of Agricultural Sciences, 2901 Beidi Road, Shanghai 201106, PR China. yijianzhong@yahoo.com FAU - Liu, Chengqian AU - Liu C LA - eng SI - GENBANK/GU124593 PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20101027 PL - England TA - Virol J JT - Virology journal JID - 101231645 RN - 0 (DNA, Viral) SB - IM MH - Animals MH - Circoviridae Infections/*veterinary/virology MH - Circovirus/*genetics/*isolation & purification MH - Cluster Analysis MH - DNA, Viral/chemistry/genetics MH - Genome, Viral MH - Molecular Sequence Data MH - Open Reading Frames MH - Phylogeny MH - Polymorphism, Genetic MH - Porcine Reproductive and Respiratory Syndrome/*virology MH - Porcine respiratory and reproductive syndrome virus MH - Sequence Analysis, DNA MH - Sequence Homology MH - Swine MH - Swine Diseases/*virology PMC - PMC2988019 EDAT- 2010/10/29 06:00 MHDA- 2011/02/01 06:00 PMCR- 2010/10/27 CRDT- 2010/10/29 06:00 PHST- 2010/09/13 00:00 [received] PHST- 2010/10/27 00:00 [accepted] PHST- 2010/10/29 06:00 [entrez] PHST- 2010/10/29 06:00 [pubmed] PHST- 2011/02/01 06:00 [medline] PHST- 2010/10/27 00:00 [pmc-release] AID - 1743-422X-7-286 [pii] AID - 10.1186/1743-422X-7-286 [doi] PST - epublish SO - Virol J. 2010 Oct 27;7:286. doi: 10.1186/1743-422X-7-286.