|
Author:
Date:
2020-06-05
[Abstract] RNA binding proteins (RBPs) interact with cellular mRNAs, controlling various steps throughout the lifetime of these transcripts, including transcription, cellular transport, subcellular localization, translation and degradation. In addition to binding mRNA transcripts, a growing number of RBPs are shown to bind long noncoding RNAs (lncRNAs), controlling key cellular processes, including gene expression and translation of proteins. Current methodologies aimed at identifying and characterizing protein binding partners of specific RNAs of interest typically rely on tagging of the RNA with affinity aptamers, using in vitro transcribed RNA or immobilized oligonucleotides to capture RNA-protein complexes under native conditions. These assays are coupled with mass spectrometry or ...
[摘要] [摘要] RNA结合蛋白(限制性商业惯例)我Nteract随着细胞mRNA,控制整个这些转录,包括转录,细胞运输,亚细胞定位,翻译和降解。除了寿命结合mRNA转录物,越来越多的各种步骤的限制性商业惯例被证明与长期的非编码RNA(lncRNA )结合,控制关键的细胞进程,包括基因的表达和蛋白质的翻译。目前旨在鉴定和表征感兴趣的特定RNA的蛋白质结合伴侣的方法主要依靠用亲和适体标记RNA。 ,使用体外转录的RNA或固定的寡核苷酸在天然条件下捕获RNA-蛋白质复合物,这些测定方法与质谱或Western Blot分析相结合,以鉴定或/和确认相互作用的蛋白质。 mRNA和大的长非编码RNA的伴侣。oach依赖于特定靶RNA的生化下拉以及细胞裂解液中相互作用的蛋白伴侣与质谱的结合来鉴定新的相互作用蛋白。通过使用与靶RNA杂交的24-48〜20 mer 生物素化DNA 探针,该方法可确保高特异性和最小限度的脱靶结合。这种方法具有可重现性和快速性,可作为发现研究以鉴定与目标RNA结合的蛋白质的基础。
[背景] RNA结合蛋白(RBP)与细胞中的mRNA相互作用形成核糖核蛋白(RNP)复合物,通过影响转录物的加工,亚细胞定位,翻译和稳定性来调节这些转录物的转录后活性(综述见Lunde 等人。,2007; Glisovic ...
|