{"id":5155,"date":"2020-09-29T15:21:58","date_gmt":"2020-09-29T13:21:58","guid":{"rendered":"http:\/\/www.igmm.cnrs.fr\/?p=5155"},"modified":"2020-10-20T15:56:33","modified_gmt":"2020-10-20T13:56:33","slug":"a-dual-protein-mrna-localization-screen-reveals-compartmentalized-translation-and-widespread-co-translational-rna-targeting","status":"publish","type":"post","link":"https:\/\/www.igmm.cnrs.fr\/en\/a-dual-protein-mrna-localization-screen-reveals-compartmentalized-translation-and-widespread-co-translational-rna-targeting\/","title":{"rendered":"A Dual Protein-mRNA Localization Screen Reveals Compartmentalized Translation and Widespread Co-translational RNA Targeting"},"content":{"rendered":"

Local translation allows spatial control of gene expression. Here, we performed a dual protein-mRNA localization screen, using smFISH on 523 human cell lines expressing GFP-tagged genes. 32 mRNAs displayed specific cytoplasmic localizations with local translation at unexpected locations, including cytoplasmic protrusions, cell edges, endosomes, Golgi, the nuclear envelope, and centrosomes, the latter being cell-cycle-dependent. Automated classification of mRNA localization patterns revealed a high degree of intercellular heterogeneity. Surprisingly, mRNA localization frequently required ongoing translation, indicating widespread co-translational RNA targeting. Interestingly, while P-body accumulation was frequent (15 mRNAs), four mRNAs accumulated in foci that were distinct structures. These foci lacked the mature protein, but nascent polypeptide imaging showed that they were specialized translation factories. For \u03b2-catenin, foci formation was regulated by Wnt, relied on APC-dependent polysome aggregation, and led to nascent protein degradation. Thus, translation factories uniquely regulate nascent protein metabolism and create a fine granular compartmentalization of translation.<\/p>\n

A Dual Protein-mRNA Localization Screen Reveals Compartmentalized Translation and Widespread Co-translational RNA targeting<\/a><\/p>\n

Racha Chouaib 1<\/sup>, Adham Safieddine 1<\/sup>, Xavier Pichon 1<\/sup>, Arthur Imbert 1<\/sup>, Oh Sung Kwon, Aubin Samacoits, Abdel-Meneem Traboulsi, Marie-C\u00e9cile Robert, Nikolay Tsanov, Emeline Coleno, Ina Poser, Christophe Zimmer, Anthony Hyman, Herv\u00e9 Le Hir, Kazem Zibara, Marion Peter, Florian Mueller*<\/sup>, Thomas Walter*<\/sup>, Edouard Bertrand*<\/sup><\/p>\n

DOI:https:\/\/doi.org\/10.1016\/j.devcel.2020.07.010<\/a><\/p>\n

 <\/p>\n

\"\"<\/p>\n

Article highlighted in Dev Cell by Ashley Chin & Eric L\u00e9cuyer<\/p>\n

Translating Messages in Different Neighborhoods<\/a><\/p>\n

DOI:https:\/\/doi-org.insb.bib.cnrs.fr\/10.1016\/j.devcel.2020.09.006<\/a><\/p>\n

\u00a0<\/strong>Also on the same theme within the Edouard Bertrand Lab IGMM and available on BioRxiv:<\/p>\n

A conserved choreography of mRNAs at centrosomes reveals a localization mechanism involving active polysome transport<\/a><\/p>\n

Adham\u00a0Safieddine,\u00a0Emeline\u00a0Coleno,\u00a0Abdel-Meneem\u00a0Traboulsi,\u00a0Oh Sung\u00a0Kwon, Frederic Lionneton, Virginie\u00a0Georget,\u00a0Marie-C\u00e9cile\u00a0Robert, Thierry\u00a0Gostan, Charles\u00a0Lecellier, Soha\u00a0Salloum, Racha\u00a0Chouaib, Xavier\u00a0Pichon, Herv\u00e9\u00a0Le Hir, Kazem\u00a0Zibara, Marion\u00a0Peter, Edouard\u00a0Bertrand<\/p>\n

DOI:<\/strong>\u00a0https:\/\/doi.org\/10.1101\/2020.09.04.282038<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Local translation allows spatial control of gene expression. Here, we performed a dual protein-mRNA localization screen, using smFISH on 523 human cell lines expressing GFP-tagged genes. 32 mRNAs displayed specific cytoplasmic localizations with local translation at unexpected locations, including cytoplasmic protrusions, cell edges, endosomes, Golgi, the nuclear envelope, and centrosomes, the latter being cell-cycle-dependent. Automated classification of mRNA localization patterns … Continue reading A Dual Protein-mRNA Localization Screen Reveals Compartmentalized Translation and Widespread Co-translational RNA Targeting<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":5249,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,16],"tags":[],"class_list":["post-5155","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general-news","category-science-en"],"_links":{"self":[{"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/posts\/5155","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/comments?post=5155"}],"version-history":[{"count":7,"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/posts\/5155\/revisions"}],"predecessor-version":[{"id":5255,"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/posts\/5155\/revisions\/5255"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/media\/5249"}],"wp:attachment":[{"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/media?parent=5155"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/categories?post=5155"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.igmm.cnrs.fr\/en\/wp-json\/wp\/v2\/tags?post=5155"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}