PMID- 20833212 OWN - NLM STAT- MEDLINE DCOM- 20110225 LR - 20211020 IS - 1872-7492 (Electronic) IS - 0168-1702 (Print) IS - 0168-1702 (Linking) VI - 154 IP - 1-2 DP - 2010 Dec TI - Identification of dispensable nucleotide sequence in 3' untranslated region of porcine reproductive and respiratory syndrome virus. PG - 38-47 LID - 10.1016/j.virusres.2010.08.027 [doi] AB - The 3' untranslated region (UTR) of porcine arterivirus genome plays a pivotal role for virus replication, yet the properties of 3' UTR remain largely undefined. We conducted site-directed mutagenesis to the 3' UTR of the type II porcine reproductive and respiratory syndrome virus (PRRSV). Serial deletions of the 3' UTR showed that at least 40 nucleotides immediately following the ORF7 stop codon were dispensable for the viability of PRRSV in cultured cells. We then constructed a chimeric PRRSV cDNA clone using type II PRRSV as the backbone containing the 3' UTR from the type I PRRSV. The chimeric virus was viable and shared similar properties with the parental virus. Our results provided the first description of the 40nt dispensable region in type I PRRSV 3' UTR, and further predicted structure demonstrated that the high-order structure of 3' UTR might play significant roles in its function. CI - Copyright (c) 2010 Elsevier B.V. All rights reserved. FAU - Sun, Zhi AU - Sun Z AD - Department of Swine Infectious Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China. FAU - Liu, Changlong AU - Liu C FAU - Tan, Feifei AU - Tan F FAU - Gao, Fei AU - Gao F FAU - Liu, Ping AU - Liu P FAU - Qin, Aijian AU - Qin A FAU - Yuan, Shishan AU - Yuan S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20100915 PL - Netherlands TA - Virus Res JT - Virus research JID - 8410979 RN - 0 (3' Untranslated Regions) SB - IM MH - *3' Untranslated Regions MH - Animals MH - Cell Line MH - Microbial Viability MH - Mutagenesis, Site-Directed MH - Nucleic Acid Conformation MH - Porcine respiratory and reproductive syndrome virus/*genetics/physiology MH - Recombination, Genetic MH - Sequence Deletion MH - Swine MH - *Virus Replication PMC - PMC7114379 EDAT- 2010/09/14 06:00 MHDA- 2011/02/26 06:00 PMCR- 2010/09/15 CRDT- 2010/09/14 06:00 PHST- 2010/03/29 00:00 [received] PHST- 2010/08/18 00:00 [revised] PHST- 2010/08/27 00:00 [accepted] PHST- 2010/09/14 06:00 [entrez] PHST- 2010/09/14 06:00 [pubmed] PHST- 2011/02/26 06:00 [medline] PHST- 2010/09/15 00:00 [pmc-release] AID - S0168-1702(10)00324-2 [pii] AID - 10.1016/j.virusres.2010.08.027 [doi] PST - ppublish SO - Virus Res. 2010 Dec;154(1-2):38-47. doi: 10.1016/j.virusres.2010.08.027. Epub 2010 Sep 15.