Traptamer screening: a new functional genomics approach to study virus entry and other cellular processes.

Traptamer screening: a new functional genomics approach to study virus entry and other cellular processes.
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Traptamer筛选:一种研究病毒进入和其他细胞过程的新功能基因组学方法。

DOI:
10.1111/febs.15775
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发表时间:
2022-01
期刊:
The FEBS journal
影响因子:
--
通讯作者:
DiMaio D
DiMaio D
中科院分区:
其他
文献类型:
--
作者:
Xie J;DiMaio D

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从历史上看,哺乳动物细胞的遗传分析需要分离随机产生的突变细胞系与改变的性质,然后通过费力的遗传作图实验,以确定突变基因负责的表型。近年来,体细胞遗传学已经被功能基因组学筛选彻底改变,其中每个蛋白质编码基因的表达被系统地干扰,并且被干扰的细胞的表型被确定。我们在这里概述了一种新的功能基因组学筛选策略,从根本上不同于常用的方法。在这种策略中,我们表达了名为traptamer的人工跨膜蛋白的文库,并选择了具有所需表型的稀有细胞,因为偶然的是,traptamer特异性地干扰了靶蛋白的表达或活性。然后从细胞中回收活性陷阱体,并可用作解剖所研究的生物过程的工具。我们还简要描述了我们如何使用这种新的策略来深入了解人乳头瘤病毒(HPV)进入细胞的复杂过程。
Historically, the genetic analysis of mammalian cells entailed the isolation of randomly-arising mutant cell lines with altered properties, followed by laborious genetic mapping experiments to identify the mutant gene responsible for the phenotype. In recent years, somatic cell genetics has been revolutionized by functional genomics screens, in which expression of every protein-coding gene is systematically perturbed, and the phenotype of the perturbed cells is determined. We outline here a novel functional genomics screening strategy that differs fundamentally from commonly used approaches. In this strategy, we express libraries of artificial transmembrane proteins named traptamers and select rare cells with the desired phenotype because, by chance, a traptamer specifically perturbs the expression or activity of a target protein. Active traptamers are then recovered from cells and can be used as tools to dissect the biological process under study. We also briefly describe how we have used this new strategy to provide insights into the complex process by which human papillomaviruses (HPVs) enter cells.
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