Deciphering molecular interactions by proximity labeling.

Deciphering molecular interactions by proximity labeling.
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DOI:
10.1038/s41592-020-01010-5
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发表时间:
2021-02
期刊:
影响因子:
48
通讯作者:
Ting, Alice Y.
Ting, Alice Y.
中科院分区:
生物学1区
文献类型:
--
作者:
Qin, Wei;Cho, Kelvin F.;Cavanagh, Peter E.;Ting, Alice Y.

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许多生物过程是通过蛋白质和核酸的分子相互作用来执行和调控的。邻近标记(PL)是一种通过将特定蛋白质“诱饵”与混杂的酶进行基因融合,从而标记其内源相互作用伙伴的技术,这些酶在活细胞中催化产生可扩散的活性物质。然后,与诱饵相互作用的标记分子可以通过质谱法或核酸测序进行富集和鉴定。在此,我们回顾了PL技术的发展,并重点介绍了应用PL来发现和分析分子相互作用的研究。特别是,我们专注于PL在绘制活细胞和生物体中蛋白质 - 蛋白质、蛋白质 - RNA以及蛋白质 - DNA相互作用图谱方面的应用。
Many biological processes are executed and regulated through the molecular interactions of proteins and nucleic acids. Proximity labeling (PL) is a technology for tagging the endogenous interaction partners of specific protein “baits”, via genetic fusion to promiscuous enzymes that catalyze the generation of diffusible reactive species in living cells. Tagged molecules that interact with baits can then be enriched and identified by mass spectrometry or nucleic acid sequencing. Here we review the development of PL technologies and highlight studies that have applied PL to discover and analyze molecular interactions. In particular, we focus on the use of PL for mapping protein-protein, protein-RNA, and protein-DNA interactions in living cells and organisms.
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