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RNA localization is a key determinant of neurite-enriched proteome

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Item Type:Article
Title:RNA localization is a key determinant of neurite-enriched proteome
Creators Name:Zappulo, A. and van den Bruck, D. and Ciolli Mattioli, C. and Franke, V. and Imami, K. and McShane, E. and Moreno-Estelles, M. and Calviello, L. and Filipchyk, A. and Peguero-Sanchez, E. and Mueller, T. and Woehler, A. and Birchmeier, C. and Merino, E. and Rajewsky, N. and Ohler, U. and Mazzoni, E.O. and Selbach, M. and Akalin, A. and Chekulaeva, M.
Abstract:Protein subcellular localization is fundamental to the establishment of the body axis, cell migration, synaptic plasticity, and a vast range of other biological processes. Protein localization occurs through three mechanisms: protein transport, mRNA localization, and local translation. However, the relative contribution of each process to neuronal polarity remains unknown. Using neurons differentiated from mouse embryonic stem cells, we analyze protein and RNA expression and translation rates in isolated cell bodies and neurites genome-wide. We quantify 7323 proteins and the entire transcriptome, and identify hundreds of neurite-localized proteins and locally translated mRNAs. Our results demonstrate that mRNA localization is the primary mechanism for protein localization in neurites that may account for half of the neurite-localized proteome. Moreover, we identify multiple neurite-targeted non-coding RNAs and RNA-binding proteins with potential regulatory roles. These results provide further insight into the mechanisms underlying the establishment of neuronal polarity. Subcellular localization of RNAs and proteins is important for polarized cells such as neurons. Here the authors differentiate mouse embryonic stem cells into neurons, and analyze the local transcriptome, proteome, and translated transcriptome in their cell bodies and neurites, providing a unique resource for future studies on neuronal polarity.
Source:Nature Communications
ISSN:2041-1723
Publisher:Nature Publishing Group (U.K.)
Volume:8
Number:1
Page Range:583
Date:19 September 2017
Official Publication:https://doi.org/10.1038/s41467-017-00690-6
PubMed:View item in PubMed

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