Knockout of the Host Resistance Gene Pkr Fully Restores Replication of Murine Cytomegalovirus m142 and m143 Mutants In Vivo

Knockout of the Host Resistance Gene Pkr Fully Restores Replication of Murine Cytomegalovirus m142 and m143 Mutants In Vivo
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敲除宿主抗性基因 Pkr 可完全恢复小鼠巨细胞病毒 m142 和 m143 突变体的体内复制

DOI:
10.1128/jvi.02003-15
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发表时间:
2015
影响因子:
5.4
通讯作者:
Brune W
Brune W
中科院分区:
医学2区
文献类型:
--
作者:
Ostermann E;Warnecke G;Waibler Z;Brune W

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小鼠巨细胞病毒(MCMV)蛋白m142和m143是病毒复制所必需的。它们结合双链RNA并阻止蛋白激酶R诱导的蛋白质合成关闭。这两种病毒蛋白是否具有其他功能,如它们在人巨细胞病毒中的同源物,仍然未知。我们发现MCMV m142和m143敲除突变体获得的器官滴度相当于野生型MCMV inPkr敲除小鼠获得的滴度,表明这些病毒蛋白不编码与体内致病相关的额外PKR独立功能。
Murine cytomegalovirus (MCMV) proteins m142 and m143 are essential for viral replication. They bind double-stranded RNA and prevent protein kinase R-induced protein synthesis shutoff. Whether the two viral proteins have additional functions such as their homologs in human cytomegalovirus do remained unknown. We show that MCMV m142 and m143 knockout mutants attain organ titers equivalent to those attained by wild-type MCMV inPkrknockout mice, suggesting that these viral proteins do not encode additional PKR-independent functions relevant for pathogenesisin vivo.
DOI: 10.1002/0471142735.im1907s43
发表时间: 2001-08-01
影响因子: --
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