E1A-induced enhancer activity of the poly(dG-dT).poly(dA-dC) element (GT element) and interactions with a GT-specific nuclear factor

E1A-induced enhancer activity of the poly(dG-dT).poly(dA-dC) element (GT element) and interactions with a GT-specific nuclear factor
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E1A 诱导的聚(dG-dT).聚(dA-dC)元件(GT 元件)的增强子活性以及与 GT 特异性核因子的相互作用

DOI:
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发表时间:
1989
影响因子:
5.3
通讯作者:
B. Grinnell
B. Grinnell
中科院分区:
生物学2区
文献类型:
--
作者:
D. Berg;J. Walls;A. Reifel;B. Grinnell

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交替序聚(dG-dT)。poly(dA-dC)是真核生物基因组中高度重复的序列。我们研究了反式作用早期病毒蛋白对GT元件刺激腺病毒主要晚期启动子(MLP)转录能力的影响。我们发现,无论存在或不存在另一个增强子元件,单独的GT元件都不能激活MLP的表达。然而,当存在5型或2型腺病毒的E1A基因产物时,GT元件激活了MLP的表达。GT元件在E1A存在下的刺激活性具有增强元件的性质,并且与E1A应答的BK病毒增强子一起,对GT元件的反式激活作用是加性的。我们还证明了一种特定的核因子与GT元素结合。然而,E1A蛋白不影响与GT元件的初始因子相互作用。总的来说,我们的数据表明启动子活性的反式调节可以通过GT元件介导。
The alternating sequence poly(dG-dT).poly(dA-dC) is a highly repeated sequence in the eucaryotic genome. We have examined the effect of trans-acting early viral proteins on the ability of the GT element to stimulate transcription of the adenovirus major late promoter (MLP). We find that the GT element alone does not activate expression from the MLP in either the presence or absence of another enhancer element. However, in the presence of the E1A gene products of either adenovirus type 5 or 2, the GT element activated expression from the MLP. The stimulatory activity of the GT element in the presence of E1A had the properties of an enhancer element, and the trans-activating effect on the GT element was additive in conjunction with the E1A-responsive BK virus enhancer. We also have demonstrated that a specific nuclear factor(s) binds to the GT element. However, the E1A protein(s) do not affect the initial factor interaction(s) with the GT element. Overall, our data demonstrate that trans modulation of promoter activity can be mediated through the GT element.
细胞癌基因的转导:劳斯肉瘤病毒的起源。
DOI: 10.1073/pnas.80.9.2519
发表时间: 1983
影响因子: 11.1
作者:
Swanstrom,R;Parker,RC;Varmus,HE;Bishop,JM
通讯作者: Bishop,JM
鉴定 HeLa 细胞中 EIA 诱导型腺病毒启动子上游转录控制序列特异的因子及其在感染和未感染细胞中的相对丰度。
DOI: 10.1073/pnas.83.16.5914
发表时间: 1986
影响因子: 11.1
作者:
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通讯作者: Thimmappaya,B
DOI: 10.1016/0022-2836(85)90218-9
发表时间: 1985
影响因子: 5.6
作者:
Gross,DS;Huang,SY;Garrard,WT
通讯作者: Garrard,WT