3Graham RL, Baric RS. Recombination, reservoirs, and the modular spike: mechanisms of coronavirus cross-speciestransmission [J]. J Virol, 2010, 84(7) : 3134-3146.
4Kuo L, Godeke GJ, Raamsman MJ, Masters PS, Rottier PJ. Retargeting of coronavirus by substitution of the spike glycoprotein ectodomain: crossing the host cell species bar- rier [J]. J Virol, 2000, 74(3): 1393-1406.
5Woo PC, Lau SK, Lam CS, Lau CC, Tsang AK, Lau JH, Bai R, Teng JL, Tsang CC, Wang M, Zheng BJ, Chan KH, Yuen KY. Discovery of seven novel mammalian and a- vian coronaviruses in the genus deltacoronavirus supports bat coronaviruses as the gene source of alphacoronavirus and be- tacoronavirus and avian coronaviruses as the gene source of gammacoronavirus and deltacoronavirus [J]. J Virol, 2012, 86(7) : 3995-4008.
6Perlman S, Zhao J. Human coronavirus EMC is not the same as severe acute respiratory syndrome coronavirus [J]. MBio, 2013, 4(1) : e00002- e00013.
7Belouzard S, Millet JK, Licitra BN, Whittaker GR. Mecha- nisms of coronavirus cell entry mediated by the viral spike protein [J]. Viruses, 2012, 4(6): 1011-1033.
8Woo PC, Lau SK, Huang Y, Yuen KY. Coronavirus diver- sity, phylogeny and interspecies jumping [J]. Exp Biol Med (Maywood), 2009, 234(10) : 1117-1127.
9Heald-Sargent T, Gallagher T. Ready, set, fuse The coro- navirus spike protein and acquisition of fusion competence[J].Viruses, 2012, 4(4): 557-580.
10Yang J, LvJ, Wang Y, Gao S, Yao Q, Qu D, Ye R. Rep- lication of murine coronavirus requires multiple cysteines in the endodomain of spike protein [J]. Virology, 2012, 427 (2) :98-106.
