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首页> 外文期刊>Folia histochemica et cytobiologica >L1-ORF1p and Ago2 are involved in a siRNA-mediated regulation for promoter activity of L1-5 ' UTR
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L1-ORF1p and Ago2 are involved in a siRNA-mediated regulation for promoter activity of L1-5 ' UTR

机译:L1-ORF1P和AGO2参与SiRNA介导的L1-5'UTR启动子活性调节

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摘要

Introduction. Long interspersed nuclear elements-1 (L1), as the only one self-active retrotransposon of the mobile element, was found to be generally activated in tumor cells. The 5'UTR of L1 (L1-5'UTR) contains both sense and antisense bidirectional promoters, transcription products of which can generate double-strand RNA (dsRNA). In addition, L1-ORF1p, a dsRNA binding protein encoded by L1, is considered to engage in some RNA-protein (RNP) formation. Ago2, one of the RISC components, can bind to dsRNA to form RISC complex, but its role in L1 regulation still remains unclear. Due that the 5'UTR of L1 (L1-5'UTR) contains both sense and antisense bidirectional promoters, so the activities in both string were identified. A dsRNA-mediated regulation of L1-5'UTR, with the feedback regulation of L1-ORF1p as well as other key molecules engaged (Ago1-4) in this process, was also investigated.
机译:介绍。 长时间的核元素-1(L1),作为移动元件的唯一一个自活性转渣,通常在肿瘤细胞中被激活。 L1(L1-5'UTR)的5'UTR含有意义和反义双向启动子,其转录产品可以产生双链RNA(DSRNA)。 另外,L1-ORF1P,由L1编码的DSRNA结合蛋白被认为是接合一些RNA蛋白(RNP)形成。 以往2,其中一个RISC组件,可以与DSRNA结合形成RISC复合物,但其在L1规则中的作用仍然尚不清楚。 由于L1(L1-5'UTR)的5'UTR含有有义和反义双向启动子,因此鉴定了两个字符串中的活动。 还研究了L1-5'UTR的DSRNA介导的调节,并进行了L1-ORF1P的反馈调节以及在该过程中接受的其他关键分子(以往1-4)。

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