哺乳动物细胞中的遗传密码扩展：质粒系统比较。
Genetic code expansion in mammalian cells: A plasmid system comparison.
机构信息
Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA.
Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA.
出版信息
Bioorg Med Chem. 2020 Dec 15;28(24):115772. doi: 10.1016/j.bmc.2020.115772. Epub 2020 Sep 19.
Abstract
Genetic code expansion with unnatural amino acids (UAAs) has significantly broadened the chemical repertoire of proteins. Applications of this method in mammalian cells include probing of molecular interactions, conditional control of biological processes, and new strategies for therapeutics and vaccines. A number of methods have been developed for transient UAA mutagenesis in mammalian cells, each with unique features and advantages. All have in common a need to deliver genes encoding additional protein biosynthetic machinery (an orthogonal tRNA/tRNA synthetase pair) and a gene for the protein of interest. In this study, we present a comparative evaluation of select plasmid-based genetic code expansion systems and a detailed analysis of suppression efficiency with different UAAs and in different cell lines.
摘要
利用非天然氨基酸（UAAs）进行遗传密码扩展，显著拓宽了蛋白质的化学库。该方法在哺乳动物细胞中的应用包括分子相互作用的探测、生物过程的条件控制以及治疗和疫苗的新策略。已经开发了多种用于哺乳动物细胞中转瞬 UAA 诱变的方法，每种方法都具有独特的特点和优势。所有方法都有一个共同点，即需要传递编码额外蛋白质生物合成机制（正交 tRNA/tRNA 合成酶对）和感兴趣蛋白质的基因。在这项研究中，我们对选定的基于质粒的遗传密码扩展系统进行了比较评估，并详细分析了不同 UAA 和不同细胞系中的抑制效率。
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