Phenotypic characterization of three temperature-sensitive mutations in the vaccinia virus early gene transcription initiation factor.

Phenotypic characterization of three temperature-sensitive mutations in the vaccinia virus early gene transcription initiation factor.
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痘苗病毒早期基因转录起始因子的三种温度敏感突变的表型特征。

DOI:
10.1099/0022-1317-73-12-3155
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发表时间:
1992
期刊:
The Journal of general virology
影响因子:
--
通讯作者:
Niles,EG
Niles,EG
中科院分区:
--
文献类型:
--
作者:
Christen,L;Higman,MA;Niles,EG

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牛痘病毒基因D6R编码病毒粒子早期基因转录起始因子的小亚基。三种对温度敏感的突变已经被定位到这个基因上。检测每个突变所表现出的生化表型。在允许和非允许温度下,所有突变体在脉冲标记分析中都显示出改变的病毒蛋白合成。在每种情况下,早期蛋白质合成的开始延迟,早期蛋白质合成的速率降低。此外,宿主和早期蛋白质合成的关闭都被推迟。在脉冲追踪实验中,D6R蛋白在E93或c46感染细胞中的稳定性在40°C时比在31°C时降低。早期mRNA在感染后2小时在细胞中被量化,显示出明显减少。在这两种温度下检测了每种突变病毒在体外支持转录的能力,在这三种突变中,只有S4转录显示出可逆的温度敏感性。
Vaccinia virus gene D6R encodes the small subunit of the virion early gene transcription initiation factor. Three temperature-sensitive mutations have been mapped to this gene. The biochemical phenotype exhibited by each mutation was examined. All mutants displayed altered viral protein synthesis in pulse-labelling analyses at both the permissive and non-permissive temperatures. The onset of early protein synthesis was delayed, and the rate of early protein synthesis was reduced in each case. Furthermore the shut-off of both host and early protein synthesis was delayed. In pulse-chase experiments, the stability of the D6R protein in E93- or C46-infected cells was shown to be reduced at 40°C relative to that at 31°C. Early mRNA was quantified in cells at 2 h post-infection and shown to be reduced substantially. The ability of each mutant virus to support transcriptionin vitrowas examined at both temperatures and, of the three mutants, only S4 transcription was shown to exhibit reversible temperature sensitivity.
由“包被”病毒基因组合成信使 RNA。
DOI: 10.1073/pnas.57.2.314
发表时间: 1967
影响因子: 11.1
作者:
BY J. R. Kates;B. R. TAIcAusLAN
通讯作者: B. R. TAIcAusLAN
DOI: --
发表时间: 1985
期刊: The Journal of biological chemistry
影响因子: --
作者:
Dieckmann,CL;Tzagoloff,A
通讯作者: Tzagoloff,A
痘苗病毒温度敏感突变体的表型特征,其病毒粒子相关 DNA 依赖性 RNA 聚合酶的 135,000-Mr 亚基发生突变
DOI: --
发表时间: 1987
影响因子: 5.4
作者:
M. Ensinger
通讯作者: M. Ensinger
DOI: 10.1002/j.1460-2075.1988.tb03224.x
发表时间: 1988-11-01
期刊: EMBO JOURNAL
影响因子: 11.4
作者:
VOS, JC;STUNNENBERG, HG
通讯作者: STUNNENBERG, HG
信件:蛋白质裂解和痘病毒形态发生:通过用利福平阻断组装而积累的核心前体的胰蛋白酶肽分析。
DOI: --
发表时间: 1973
影响因子: 5.6
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通讯作者: E. Rosenblum