Participation of two human cytomegalovirus immediate early gene regions in transcriptional activation of adenovirus promoters.

Participation of two human cytomegalovirus immediate early gene regions in transcriptional activation of adenovirus promoters.
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两个人巨细胞病毒立即早期基因区域参与腺病毒启动子的转录激活。

DOI:
10.1016/0042-6822(87)90119-x
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发表时间:
1987
期刊:
影响因子:
3.7
通讯作者:
Stinski,MF
Stinski,MF
中科院分区:
医学3区
文献类型:
--
作者:
Tevethia,MJ;Spector,DJ;Leisure,KM;Stinski,MF

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研究了人巨细胞病毒(HCMV)立即早期基因在腺病毒基因反式表达激活中的参与。所用的最初策略是确定HCMV基因补充腺病毒E1 a突变体的能力,所述腺病毒E1 a是编码atrans-激活剂的立即早期基因。HCMV立即早期基因区IE 1和IE 2补充E1 a缺陷突变体在三个独立的测定。IE 1和IE 2在感染性腺病毒、晚期腺病毒RNA和腺病毒DNA的合成中取代E1 a。使用最具鉴别力的测定,即晚期腺病毒RNA合成,观察到IE 2基因区单独互补,而IE 1单独互补。两个HCMV基因区域在正转录控制中的作用通过它们增加由腺病毒E2 a启动子介导的氯霉素乙酰转移酶(CAT)表达的能力来表示。IE 2区单独激活CAT合成,但IE 1单独没有可检测的活性。此外,两个基因区域的活性比单独的IE 2高约10倍。这些数据表明,E1 a缺陷突变体的有效互补和腺病毒早期启动子的反式激活涉及HCMV立即早期基因区域的参与。
The participation of human cytomegalovirus (HCMV) immediate early genes in the activation of the expression of adenovirus genes intrans(trans-activation) was examined. The initial strategy used was to determine the ability of HCMV genes to complement mutants of adenovirus El a, an immediate early gene which encodes atrans-activator. The HCMV immediate early gene regions IE1 and IE2 complemented E1a-deficient mutants in three separate assays. IE1 and IE2 substituted for E1 a in the synthesis of infectious adenovirus, late adenovirus RNA, and adenovirus DNA. Complementation by the IE2 gene region alone, but not by IE1 alone, was observed using the most discriminating assay, that for late adenovirus RNA synthesis. A role for both HCMV gene regions in positive transcriptional control was indicated by their ability to increase expression of chloramphenicol acetyltransferase (CAT) mediated by the adenovirus E2a promoter. The IE2 region alone activated CAT synthesis but lE1 alone had no detectable activity. Moreover, the activity of both gene regions was about 10-fold higher than that of IE2 alone. These data indicate that efficient complementation of E1a-deficient mutants andtrans-activation of adenovirus early promoters involved the participation of both HCMV immediate early gene regions.
将人类巨细胞病毒基因组克隆为核酸内切酶 XbaI 片段。
DOI: 10.1016/0378-1119(81)90077-9
发表时间: 1981
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通讯作者: Stinski,MF
通过 mRNA 剪接位点的定点诱变解决重叠病毒基因的功能
DOI: --
发表时间: 1982
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使用 Eco R-R1 病毒 DNA 片段分析早期腺病毒 2 RNA
DOI: 10.1128/jvi.15.5.1202-1213.1975
发表时间: 1975
影响因子: 5.4
作者:
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通讯作者: H. Raskas
DOI: 10.1093/nar/11.5.1295
发表时间: 1983-01-01
影响因子: 14.9
作者:
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通讯作者: MAGNUSSON, G
DOI: 10.1016/0042-6822(81)90249-x
发表时间: 1981-10
期刊: Virology
影响因子: 3.7
作者:
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通讯作者: J. Demarchi