Biotinylation by antibody recognition-a method for proximity labeling.

Biotinylation by antibody recognition-a method for proximity labeling.
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DOI:
10.1038/nmeth.4533
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发表时间:
2018-03
期刊:
影响因子:
48
通讯作者:
Collins FS
Collins FS
中科院分区:
生物学1区
文献类型:
--
作者:
Bar DZ;Atkatsh K;Tavarez U;Erdos MR;Gruenbaum Y;Collins FS

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Identification of protein-protein interactions is a major goal of biological research. Despite technical advances over the last two decades, important but still largely unsolved challenges include the high-throughput detection of interactions directly from primary tissue and the identification of interactors of insoluble proteins that form higher-order structures. We have developed a novel, proximity-based labeling approach that uses antibodies to guide biotin deposition onto adjacent proteins in fixed cells and primary tissues. We showed our method to be specific and sensitive by labeling a mitochondrial matrix protein. Next, we used this method to profile the dynamic interactome of lamin A/C in multiple cell and tissue types under various treatment conditions. The ability to detect proximal proteins and putative interactors in intact tissues, and to quantify changes caused by different conditions or in the presence of disease mutations, can provide a new window into cell biology and disease pathogenesis.
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