首页> 美国卫生研究院文献>Medical Sciences >The ODC 3′-Untranslated Region and 5′-Untranslated Region Contain cis-Regulatory Elements: Implications for Carcinogenesis
【2h】

The ODC 3′-Untranslated Region and 5′-Untranslated Region Contain cis-Regulatory Elements: Implications for Carcinogenesis

机译:ODC 3-非翻译区和5-非翻译区含有顺式调控元件:对致癌作用的意义。

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

It has been hypothesized that both the 3′-untranslated region (3′UTR) and the 5′-untranslated region (5′UTR) of the ornithine decarboxylase (ODC) mRNA influence the expression of the ODC protein. Here, we use luciferase expression constructs to examine the influence of both UTRs in keratinocyte derived cell lines. The ODC 5′UTR or 3′UTR was cloned into the pGL3 control vector upstream or downstream of the luciferase reporter gene, respectively, and luciferase activity was measured in both non-tumorigenic and tumorigenic mouse keratinocyte cell lines. Further analysis of the influence of the 3′UTR on luciferase activity was accomplished through site-directed mutagenesis and distal deletion analysis within this region. Insertion of either the 5′UTR or 3′UTR into a luciferase vector resulted in a decrease in luciferase activity when compared to the control vector. Deletion analysis of the 3′UTR revealed a region between bases 1969 and 2141 that was inhibitory, and mutating residues within that region increased luciferase activity. These data suggest that both the 5′UTR and 3′UTR of ODC contain cis-acting regulatory elements that control intracellular ODC protein levels.
机译:假设鸟氨酸脱羧酶(ODC)mRNA的3'非翻译区(3'UTR)和5'非翻译区(5'UTR)都影响ODC蛋白的表达。在这里,我们使用荧光素酶表达构建体来检查两个UTR对角质形成细胞衍生细胞系的影响。将ODC 5'UTR或3'UTR分别克隆到荧光素酶报道基因上游或下游的pGL3对照载体中,并在非致瘤性和致瘤性小鼠角质形成细胞系中测定了荧光素酶活性。 3'UTR对荧光素酶活性的影响的进一步分析是通过定点诱变和该区域内的远端缺失分析完成的。与对照载体相比,将5'UTR或3'UTR插入荧光素酶载体中导致荧光素酶活性降低。对3'UTR的缺失分析揭示了在1969和2141碱基之间具有抑制作用的区域,该区域内的突变残基增加了萤光素酶的活性。这些数据表明,ODC的5'UTR和3'UTR均包含控制细胞内ODC蛋白水平的顺式调节元件。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号