Décimo D, Philippe H, Hadchouel M, Tardieu M, Meunier-Rotival M
INSERM Unité 347 affiliée au CNRS, Université Paris XI, Hôpital de Kremlin-Bicêtre, France.
Arch Virol. 1993;130(3-4):279-88. doi: 10.1007/BF01309660.
The nucleoprotein-encoding gene (N) of murine hepatitis virus type 3 (MHV 3), from the Mill Hill strain, was cloned and sequenced. It was compared to gene N from other murine coronaviruses and was found to share more similarities with N sequences from MHV 1 and MHV JHM strains than with the published MHV 3 N sequence which is almost identical to MHV A59. We suggest that the evolution of some MHV N sequences resulted from a double recombination phenomenon between two ancestors. Furthermore, comparison of protein N from avian and mammalian coronaviruses leads to the hypothesis that horizontal transfer events of the virus from one host species to another have occurred.
对米尔希尔株3型鼠肝炎病毒(MHV 3)的核蛋白编码基因(N)进行了克隆和测序。将其与其他鼠冠状病毒的N基因进行比较,发现它与MHV 1和MHV JHM株的N序列相比,与已发表的几乎与MHV A59相同的MHV 3 N序列有更多相似性。我们认为,一些MHV N序列的进化是由两个祖先之间的双重重组现象导致的。此外,对禽冠状病毒和哺乳动物冠状病毒的N蛋白进行比较,得出了病毒从一种宿主物种向另一种宿主物种发生水平转移事件的假说。