PMID- 25158826 OWN - NLM STAT- MEDLINE DCOM- 20150519 LR - 20220318 IS - 1743-422X (Electronic) IS - 1743-422X (Linking) VI - 11 DP - 2014 Aug 27 TI - Antiviral potency and functional analysis of tetherin orthologues encoded by horse and donkey. PG - 151 LID - 10.1186/1743-422X-11-151 [doi] LID - 151 AB - BACKGROUND: Tetherin is an interferon-inducible host cell factor that blocks the viral particle release of the enveloped viruses. Most knowledge regarding the interaction between tetherin and viruses has been obtained using the primate lentiviral system. However, much less is known about the functional roles of tetherin on other lentiviruses. Equine infectious anemia virus (EIAV) is an important macrophage-tropic lentivirus that has been widely used as a practical model for investigating the evolution of the host-virus relationship. The host range of EIAV is reported to include all members of the Equidae family. However, EIAV has different clinical responses in horse and donkey. It's intriguing to investigate the similarities and differences between the tetherin orthologues encoded by horse and donkey. RESULTS: We report here that there are two equine tetherin orthologues. Compared to horse tetherin, there are three valine amino acid deletions within the transmembrane domain and three distinct mutations within the ectodomain of donkey tetherin. However, the antiviral activity of donkey tetherin was not affected by amino acid deletion or substitution. In addition, both tetherin orthologues encoded by horse and donkey are similarly sensitive to EIAV Env protein, and equally activate NF-kappaB signaling. CONCLUSION: Our data suggest that both tetherin orthologues encoded by horse and donkey showed similar antiviral activities and abilities to induce NF-kappaB signaling. In addition, the phenomenon about the differential responses of horses and donkeys to infection with EIAV was not related with the differences in the structure of the corresponding tetherin orthologues. FAU - Yin, Xin AU - Yin X FAU - Guo, Miaomiao AU - Guo M FAU - Gu, Qinyong AU - Gu Q FAU - Wu, Xingliang AU - Wu X FAU - Wei, Ping AU - Wei P AD - College of Veterinary Medicine, Northeast Agricultural University, Harbin, China. weiiping@163.com. FAU - Wang, Xiaojun AU - Wang X LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140827 PL - England TA - Virol J JT - Virology journal JID - 101231645 RN - 0 (Antigens, CD) RN - 0 (Antiviral Agents) RN - 0 (Membrane Glycoproteins) RN - 0 (NF-kappa B) RN - 0 (Protein Isoforms) SB - IM MH - Amino Acid Sequence MH - Animals MH - Antigens, CD/genetics/metabolism/*pharmacology MH - Antiviral Agents/*pharmacology MH - Cells, Cultured MH - Cloning, Molecular MH - Equidae/genetics/*metabolism MH - Gene Expression Regulation MH - Humans MH - Infectious Anemia Virus, Equine/*drug effects MH - Macrophages/metabolism MH - Membrane Glycoproteins/genetics/metabolism/*pharmacology MH - Molecular Sequence Data MH - Mutation MH - NF-kappa B/genetics/metabolism MH - Protein Isoforms MH - Signal Transduction MH - T-Lymphocytes/metabolism PMC - PMC4152588 EDAT- 2014/08/28 06:00 MHDA- 2015/05/20 06:00 PMCR- 2014/08/27 CRDT- 2014/08/28 06:00 PHST- 2014/06/03 00:00 [received] PHST- 2014/08/22 00:00 [accepted] PHST- 2014/08/28 06:00 [entrez] PHST- 2014/08/28 06:00 [pubmed] PHST- 2015/05/20 06:00 [medline] PHST- 2014/08/27 00:00 [pmc-release] AID - 1743-422X-11-151 [pii] AID - 2480 [pii] AID - 10.1186/1743-422X-11-151 [doi] PST - epublish SO - Virol J. 2014 Aug 27;11:151. doi: 10.1186/1743-422X-11-151.