Rapid identification of nonessential genes of herpes simplex virus type 1 by Tn5 mutagenesis.

Rapid identification of nonessential genes of herpes simplex virus type 1 by Tn5 mutagenesis.
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通过 Tn5 诱变快速鉴定 1 型单纯疱疹病毒非必需基因。

DOI:
10.1126/science.3033824
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发表时间:
1987
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Glorioso,JC
Glorioso,JC
中科院分区:
--
文献类型:
--
作者:
Weber,PC;Levine,M;Glorioso,JC

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单纯疱疹病毒1型(HSV-1)的大基因组编码至少80种多肽,其中大多数没有公认的功能。这些基因产物的一个亚组似乎对细胞培养中的病毒复制不是必需的,但有助于病毒在宿主中的复杂生命周期。为了确定这样的功能,一个简单的插入诱变方法已被用于选择性灭活单个HSV-1基因。允许细菌转座子Tn 5随机插入代表HSV-1基因组的整个短的独特(US)区域的克隆的限制性片段中。在用Tn 5诱变的12个开放阅读框中,US 2、US 4和US 5的突变衍生物重组到病毒中。这三个基因被证明对于HSV-1在Vero(非洲绿色猴肾)细胞中的复制是非必需的,并且US 4基因似乎参与小鼠中枢神经系统中的病毒发病机制。这种快速的诱变程序应该证明是有用的,在探索整个HSV-1基因组以及其他复杂的动物病毒的基因组。
The large genome of herpes simplex virus type 1 (HSV-1) encodes at least 80 polypeptides, the majority of which have no recognized function. A subgroup of these gene products appears to be nonessential for virus replication in cell culture, but contributes to the complex life cycle of the virus in the host. To identify such functions, a simple insertional mutagenesis method has been used for selective inactivation of individual HSV-1 genes. The bacterial transposon Tn5 was allowed to insert randomly into cloned restriction fragments representing the entire short unique (US) region of the HSV-1 genome. Of the 12 open reading frames that were mutagenized with Tn5, mutant derivatives of US2, US4, and US5 were recombined into the virus. These three genes proved to be nonessential for HSV-1 replication in Vero (African Green monkey kidney) cells and the US4 gene appeared to be involved in viral pathogenesis in the central nervous system of mice. This rapid mutagenesis procedure should prove useful in exploring the entire HSV-1 genome as well as the genomes of other complex animal viruses.
DOI: 10.1126/science.6289440
发表时间: 1982-01-01
期刊: SCIENCE
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作者:
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DOI: --
发表时间: 1985
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