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Author:
Date:
2015-07-20
[Abstract] Post-transcriptional processing is critical for RNA biogenesis, in which conventional functional RNA transcripts are generated, such as messenger RNAs (mRNAs), transfer RNAs (tRNAs) and ribosomal RNAs (rRNAs) for translation as well as emerging non-coding RNAs with known or unknown regulatory functions. To determine the precise termini of an RNA molecule during or after processing, the primer extension and Rapid Amplification of cDNA Ends (RACE) methods have been routinely utilized for the precise mapping of 5’ or 3’ ends. Different from these assays, which are designed to detect only one end ...
[摘要] 转录后加工对于RNA生物发生至关重要，其中产生常规功能性RNA转录物，例如用于翻译的信使RNA（mRNA），转移RNA（tRNA）和核糖体RNA（rRNA）以及已知的新编码RNA或未知的调节功能。为了在加工期间或之后确定RNA分子的精确末端，引物延伸和cDNA末端的快速扩增（RACE）方法已经常规地用于5'或3'末端的精确作图。与设计为一次仅检测特定靶RNA的一端的这些测定法不同，环状逆转录 - 聚合酶链式反应（cRT-PCR）能够同时测定靶标的5'和3'末端RNA。在拟南芥中，cRT-PCR已经被广泛应用于鉴定核糖体RNA前体的5'和3'末端，或者评估在3'末端的长度或转录后延伸成熟mRNA。在该方案中，我们总结并提出了在拟南芥中cRT-PCR测定的详细程序，其也成功地用于我们以前公开的工作中（Hang等人 ，2014）。
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