PMID- 22739441 OWN - NLM STAT- MEDLINE DCOM- 20121002 LR - 20181201 IS - 1096-0341 (Electronic) IS - 0042-6822 (Linking) VI - 432 IP - 1 DP - 2012 Oct 10 TI - Chimeric viruses containing the N-terminal ectodomains of GP5 and M proteins of porcine reproductive and respiratory syndrome virus do not change the cellular tropism of equine arteritis virus. PG - 99-109 LID - 10.1016/j.virol.2012.05.022 [doi] AB - Equine arteritis virus (EAV) and porcine reproductive and respiratory syndrome virus (PRRSV) are members of family Arteriviridae; they are highly species specific and differ significantly in cellular tropism in cultured cells. In this study we examined the role of the two major envelope proteins (GP5 and M) of EAV and PRRSV in determining their cellular tropism. We generated three viable EAV/PRRSV chimeric viruses by swapping the N-terminal ectodomains of these two proteins from PRRSV IA1107 strain into an infectious cDNA clone of EAV (rMLVB4/5 GP5ecto, rMLVB4/5/6 Mecto and rMLVB4/5/6 GP5&Mecto). The three chimeric viruses could only infect EAV susceptible cell lines but not PRRSV susceptible cells in culture. Therefore, these data unequivocally demonstrate that the ectodomains of GP5 and M are not the major determinants of cellular tropism, further supporting the recent findings that the minor envelope proteins are the critical proteins in mediating cellular tropism (Tian et al., 2012). CI - Copyright (c) 2012 Elsevier Inc. All rights reserved. FAU - Lu, Zhengchun AU - Lu Z AD - Maxwell H. Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY 40546, United States. FAU - Zhang, Jianqiang AU - Zhang J FAU - Huang, Chengjin M AU - Huang CM FAU - Go, Young Yun AU - Go YY FAU - Faaberg, Kay S AU - Faaberg KS FAU - Rowland, Raymond R R AU - Rowland RR FAU - Timoney, Peter J AU - Timoney PJ FAU - Balasuriya, Udeni B R AU - Balasuriya UB LA - eng SI - GENBANK/JQ844153 SI - GENBANK/JQ844154 SI - GENBANK/JQ844155 SI - GENBANK/JQ844156 SI - GENBANK/JQ844157 SI - GENBANK/JQ844158 PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120626 PL - United States TA - Virology JT - Virology JID - 0110674 RN - 0 (DNA, Complementary) RN - 0 (M protein, porcine reproductive and respiratory syndrome virus) RN - 0 (Viral Envelope Proteins) RN - 0 (Viral Matrix Proteins) RN - 0 (glycoprotein 5, PRRSV) SB - IM MH - Animals MH - Cell Line MH - DNA, Complementary MH - Equartevirus/genetics/*physiology MH - Horses MH - Molecular Sequence Data MH - Porcine respiratory and reproductive syndrome virus/genetics MH - Protein Structure, Tertiary MH - Recombination, Genetic MH - Sequence Analysis, DNA MH - Swine MH - Viral Envelope Proteins/*genetics/metabolism MH - Viral Matrix Proteins/*genetics/metabolism MH - *Viral Tropism EDAT- 2012/06/29 06:00 MHDA- 2012/10/04 06:00 CRDT- 2012/06/29 06:00 PHST- 2012/04/17 00:00 [received] PHST- 2012/05/15 00:00 [revised] PHST- 2012/05/27 00:00 [accepted] PHST- 2012/06/29 06:00 [entrez] PHST- 2012/06/29 06:00 [pubmed] PHST- 2012/10/04 06:00 [medline] AID - S0042-6822(12)00273-5 [pii] AID - 10.1016/j.virol.2012.05.022 [doi] PST - ppublish SO - Virology. 2012 Oct 10;432(1):99-109. doi: 10.1016/j.virol.2012.05.022. Epub 2012 Jun 26.