Spatiotemporally-resolved mapping of RNA binding proteins via functional proximity labeling reveals a mitochondrial mRNA anchor promoting stress recovery.
Spatiotemporally-resolved mapping of RNA binding proteins via functional proximity labeling reveals a mitochondrial mRNA anchor promoting stress recovery.
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通过功能接近标记对RNA结合蛋白的空间分辨映射揭示了线粒体mRNA锚固,可促进应力恢复。
DOI:
10.1038/s41467-021-25259-2
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发表时间:
2021-08-17
影响因子:
16.6
通讯作者:
Ting AY
中科院分区:
文献类型:
--
作者:
Qin W;Myers SA;Carey DK;Carr SA;Ting AY
Proximity labeling (PL) with genetically-targeted promiscuous enzymes has emerged as a powerful tool for unbiased proteome discovery. By combining the spatiotemporal specificity of PL with methods for functional protein enrichment, we show that it is possible to map specific protein subclasses within distinct compartments of living cells. In particular, we develop a method to enrich subcompartment-specific RNA binding proteins (RBPs) by combining peroxidase-catalyzed PL with organic-aqueous phase separation of crosslinked protein-RNA complexes (“APEX-PS”). We use APEX-PS to generate datasets of nuclear, nucleolar, and outer mitochondrial membrane (OMM) RBPs, which can be mined for novel functions. For example, we find that the OMM RBP SYNJ2BP retains specific nuclear-encoded mitochondrial mRNAs at the OMM during translation stress, facilitating their local translation and import of protein products into the mitochondrion during stress recovery. Functional PL in general, and APEX-PS in particular, represent versatile approaches for the discovery of proteins with novel function in specific subcellular compartments. Proximity labeling is used to map and discover proteins in specific subcellular compartments. Here the authors combine APEX-mediated proximity labeling with organic-aqueous phase separation to identify nuclear, nucleolar, and outer mitochondrial membrane RNA binding proteins.
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影响因子:
14.9
作者:
Bounedjah O;Desforges B;Wu TD;Pioche-Durieu C;Marco S;Hamon L;Curmi PA;Guerquin-Kern JL;Piétrement O;Pastré D
通讯作者:
Pastré D
影响因子:
29
作者:
Arroyo JD;Jourdain AA;Calvo SE;Ballarano CA;Doench JG;Root DE;Mootha VK
通讯作者:
Mootha VK
影响因子:
46.9
作者:
Ficarro, SB;McCleland, ML;White, FM
通讯作者:
White, FM
影响因子:
16
作者:
Chuderland, Dana;Konson, Alexander;Seger, Rony
通讯作者:
Seger, Rony
影响因子:
14.8
作者:
Gagnon, Keith T.;Li, Liande;Janowski, Bethany A.;Corey, David R.
通讯作者:
Corey, David R.