The ERM-1 membrane-binding domain directs erm-1 mRNA localization to the plasma membrane in the C. elegans embryo.
| Autor: | Winkenbach LP; Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA., Parker DM; Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA.; Department of Chemistry and Biochemistry, Howard Hughes Medical Institute, University of Colorado, Boulder, CO 80303, USA., Williams RTP; Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA., Nishimura EO; Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA. |
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| Jazyk: | angličtina |
| Zdroj: | Development (Cambridge, England) [Development] 2022 Nov 15; Vol. 149 (22). Date of Electronic Publication: 2022 Nov 18. |
| DOI: | 10.1242/dev.200930 |
| Abstrakt: | mRNA localization and transport are integral in regulating gene expression. In Caenorhabditis elegans embryos, the maternally inherited mRNA erm-1 (Ezrin/Radixin/Moesin) becomes concentrated in anterior blastomeres. erm-1 mRNA localizes within those blastomeres to the plasma membrane where the essential ERM-1 protein, a membrane-actin linker, is also found. We demonstrate that the localization of erm-1 mRNA to the plasma membrane is translation dependent and requires its encoded N-terminal, membrane-binding (FERM) domain. By perturbing translation through multiple methods, we found that erm-1 mRNA localization at the plasma membrane persisted only if the nascent peptide remained in complex with the translating mRNA. Indeed, re-coding the erm-1 mRNA coding sequence while preserving the encoded amino acid sequence did not disrupt erm-1 mRNA localization, corroborating that the information directing mRNA localization resides within its membrane-binding protein domain. A single-molecule inexpensive fluorescence in situ hybridization screen of 17 genes encoding similar membrane-binding domains identified three plasma membrane-localized mRNAs in the early embryo. Ten additional transcripts showed potential membrane localization later in development. These findings point to a translation-dependent pathway for localization of mRNAs encoding membrane-associated proteins. Competing Interests: Competing interests The authors declare no competing or financial interests. (© 2022. Published by The Company of Biologists Ltd.) |
| Databáze: | MEDLINE |
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