Human monkeypox and smallpox viruses: genomic comparison.

Human monkeypox and smallpox viruses: genomic comparison.
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DOI:
10.1016/s0014-5793(01)03144-1
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发表时间:
2001-11-30
期刊:
影响因子:
3.5
通讯作者:
Sandakhchiev, LS
Sandakhchiev, LS
中科院分区:
生物学3区
文献类型:
--
作者:
Shchelkunov, SN;Totmenin, AV;Babkin, IV;Safronov, PF;Ryazankina, OI;Petrov, NA;Gutorova, VV;Uvarova, EA;Mikheev, MV;Sisler, JR;Esposito, JJ;Jahrling, PB;Moss, B;Sandakhchiev, LS

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猴痘病毒(MPV)引起一种类似天花的人类疾病,但人与人之间的传播率较低。为了确定引起这两种疾病的正痘病毒之间的遗传关系,我们对1996年扎伊尔大规模人类猴痘暴发期间分离的一名患者的MPV 197kb基因组进行了测序。MPV基因组中心区的核苷酸序列与天花病毒(VAR)的核苷酸序列有96.3%的同源性,MPV基因组中心区编码关键酶和结构蛋白。相比之下,MPV和VAR在基因组末端编码毒力和寄主范围因子的区域有相当大的差异。我们的数据表明,MPV不是VAR的直接祖先,不太可能自然地获得VAR的所有性质。
Monkeypox virus (MPV) causes a human disease which resembles smallpox but with a lower person-to-person transmission rate. To determine the genetic relationship between the orthopoxviruses causing these two diseases, we sequenced the 197-kb genome of MPV isolated from a patient during a large human monkeypox outbreak in Zaire in 1996. The nucleotide sequence within the central region of the MPV genome, which encodes essential enzymes and structural proteins, was 96.3% identical with that of variola (smallpox) virus (VAR). In contrast, there were considerable differences between MPV and VAR in the regions encoding virulence and host-range factors near the ends of the genome. Our data indicate that MPV is not the direct ancestor of VAR and is unlikely to naturally acquire all properties of VAR.
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发表时间: 1992-04-01
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