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Biology
核糖体束缚新生多肽的分离在体外确定沿mRNA的翻译暂停网站
核糖体束缚新生多肽的分离在体外确定沿mRNA的翻译暂停网站
JoVE Journal
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JoVE Journal Biology
Isolation of Ribosome Bound Nascent Polypeptides in vitro to Identify Translational Pause Sites Along mRNA

核糖体束缚新生多肽的分离在体外确定沿mRNA的翻译暂停网站

Full Text
16,867 Views
10:15 min
July 6, 2012

DOI: 10.3791/4026-v

Sujata S. Jha1, Anton A. Komar1

1Center for Gene Regulation in Health and Disease, Department of Biological, Geological and Environmental Sciences,Cleveland State University

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Please note that some of the translations on this page are AI generated. Click here for the English version.

描述的一种技术,以确定mRNA的翻译暂停网站。本程序是基于对新生多肽在体外培养的靶mRNA的翻译,其次是使用变性凝胶电泳新生链的大小分析核糖体积累的隔离。

该程序的总体目标是识别和定位在无细胞翻译系统中翻译的 mRNA 的主要翻译暂停位点。这是通过首先在 T 7 转录启动子的控制下克隆目标基因来实现的。接下来转录和纯化 mRNA。

然后在 mRNA 和放射性氨基酸存在下进行体外翻译,以标记合成的蛋白质和新生多肽。最后,使用沉降速度离心分离多核糖体,并通过凝胶电泳分离分离的新生链。最终,可以通过 Tristine SDS 页面和自动放射成像获得显示不同长度的新生多肽的结果,从而表明沿目标 mRNA 存在暂停位点。

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