Antisense promoter mapping. Inhibitory methods of transcriptional analysis.

Antisense promoter mapping. Inhibitory methods of transcriptional analysis.
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反义启动子作图。

DOI:
10.1111/j.1749-6632.1992.tb21061.x
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发表时间:
1992
影响因子:
5.2
通讯作者:
Holt,JT
Holt,JT
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Holt,JT

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我们采用反义方法研究了c-fos蛋白(Fos)的转录功能。表达诱导型抗fos RNA的克隆已被用于抑制c-fos表达,从而通过抑制其正常阻遏物功能而激活c-fos转录。Fos负调控的位点已被映射使用这种反义映射方法,这表明,血清反应元件的内源性c-fos蛋白的阻遏的主要网站。一个类似的策略(反义克隆)已被用来克隆四个靶基因,是Fos依赖。这些cDNA编码的mRNA被血清快速诱导(尽管这种诱导被放线菌酮阻断),但被抗fos RNA的诱导阻断。这些研究转录因子功能的抑制方法对于需要与其他因子合作来调节基因转录的转录因子(如Fos)非常有用。
We have employed antisense methods to study the transcriptional functions of c-fos protein (Fos). Clones expressing inducible anti-fos RNA have been employed to inhibit c-fos expression, resulting in activation of c-fos transcription by inhibiting its normal repressor function. The sites of negative regulation by Fos have been mapped using this antisense mapping method which demonstrates that the serum response element represents the major site of repression by endogenous c-fos protein. A similar strategy (antisense cloning) has been employed to clone four target genes that are Fos dependent. These cDNAs encode mRNAs that are rapidly induced by serum (although this induction is blocked by cycloheximide) but are blocked by induction of anti-fos RNA. These inhibitory methods of studying transcription factor function are extremely useful for transcription factors (like Fos) that require cooperation with other factors to modulate gene transcription.
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