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Company: Axonlab
Catalog#: AL60X20
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Individual-nucleotide-resolution UV Cross-linking and Immunoprecipitation (iCLIP) of UPF1
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Date:
2014-04-05
[Abstract]  The fate of mRNA, in particular its stability, localization and rate of translation is regulated by RNA binding proteins assembling to messenger ribonucleoprotein (mRNP) complexes. To investigate the transcriptome-wide RNA binding sites of UPF1, the core factor of nonsense-mediated mRNA decay (NMD), we performed individual-nucleotide-resolution UV cross-linking and immunoprecipitation (iCLIP) (Zund et al., 2013) followed by high-throughput sequencing. The presented protocol is optimized to investigate the RNA-binding sites of UPF1 and is based on previously described studies (Konig et al., 2010; Konig et al., 2011; Hafner et al., 2010). We want to thank the Group of Mihaela Zavolan (Swiss Institute of Bioinformatics, Basel, Switzerland) and Jernej Ule ... [摘要]  mRNA的命运,特别是其稳定性,定位和翻译速率由装配到信使核糖核蛋白(mRNP)复合物的RNA结合蛋白调节。 为了研究无义介导的mRNA衰变(NMD)的核心因子UPF1的转录组范围的RNA结合位点,我们进行单个核苷酸分辨率的UV交联和免疫沉淀(iCLIP)(Zund等,/em>,2013),然后进行高通量测序。 优化所提出的方案以研究UPF1的RNA结合位点并且基于先前描述的研究(Konig等人,2010; Konig等人,2011; Hafner等人,2010)。 我们要感谢Mihaela Zavolan(瑞士巴塞尔瑞士生物信息学研究所)和Jernej Ule(英国剑桥的分子生物学医学研究委员会实验室)组织这些实验的技术支持。

UPF1 RNA Immunoprecipitation from Mini-μ Construct–expressing Cells
Author:
Date:
2014-04-05
[Abstract]  UPF1, an RNA helicase and a core factor of nonsense-mediated mRNA decay (NMD), interacts with RNA independently of the sequence context. To investigate the influence of translation on the association of UPF1 with specific reporter transcripts, UPF1 RNA immunoprecipitations (RIPs) are performed from Hela cells that either express a normally translated immunoglobulin-µ (Ig-µ) reporter (mini µ) or a version with a stable stem loop in the 5' UTR (SL mini µ) that efficiently inhibit translation initiation (Zund et al., 2013). Both the cloning of the SL mini µ reporter construct and the UPF1 RIP experiment are described in detail.
[摘要]  UPF1,RNA解旋酶和无义介导的mRNA衰变(NMD)的核心因素,独立于序列上下文与RNA相互作用。 为了研究翻译对UPF1与特异性报告基因转录物的关联的影响,从表达正常翻译的免疫球蛋白-μ(Ig-μ)报道分子(微型μ)的Hela细胞或其中的一个版本进行UPF1RNA免疫沉淀(RIP) 在5'UTR(SL miniμ)中的稳定茎环,其有效抑制翻译起始(Zund等人,2013)。 详细描述了SL miniμ报告构建体的克隆和UPF1 RIP实验

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