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How cells get the message: dynamic assembly and function of mRNA-protein complexes
Michaela Müller-McNicoll1, Karla M Neugebauer
1Max Planck Institute of Molecular Cell Biology and Genetics, Pfotenhauerstrasse 108, 01307 Dresden, Germany. mmueller@mpi-cbg.de
Abstract:
mRNA is packaged into ribonucleoprotein particles called mRNPs. A multitude of RNA-binding proteins as well as a host of associated proteins participate in the fate of mRNA from transcription and processing in the nucleus to translation and decay in the cytoplasm. Methodological innovations in cell biology and genome-wide high-throughput approaches have revealed an unexpected diversity of mRNA-associated proteins and unforeseen interconnections between mRNA-processing steps. Recent insights into mRNP formation in vivo have also highlighted the importance of mRNP packaging, which can sort RNAs on the basis of their length and determine mRNA fate through alternative mRNP assembly, processing and export pathways.
Insights
Messenger RNA (mRNA) is packaged into ribonucleoprotein particles (mRNPs) by numerous proteins. This packaging influences mRNA
Area of Science:
- Molecular biology
- Cell biology
- Genomics
Background:
- Messenger RNA (mRNA) undergoes complex processing and transport.
- mRNA is packaged into messenger ribonucleoprotein particles (mRNPs).
- Numerous RNA-binding and associated proteins influence mRNA fate.
Purpose of the Study:
- To explore the diversity of mRNA-associated proteins.
- To understand the interconnections between mRNA processing steps.
- To highlight the role of mRNP formation and packaging in vivo.
Main Methods:
- Cell biology techniques.
- Genome-wide high-throughput approaches.
Main Results:
- Revealed diverse mRNA-associated proteins.
- Identified unforeseen interconnections in mRNA processing.
- Demonstrated mRNP packaging sorts RNAs by length.
- Showcased alternative pathways for mRNP assembly, processing, and export.
Conclusions:
- mRNP packaging is crucial for mRNA fate.
- mRNA packaging influences RNA sorting and cellular localization.
- Insights into mRNP formation advance understanding of gene expression regulation.
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