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Updated: Mar 19, 2026

Method for the Isolation and Identification of mRNAs, microRNAs and Protein Components of Ribonucleoprotein Complexes from Cell Extracts using RIP-Chip
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Method for the Isolation and Identification of mRNAs, microRNAs and Protein Components of Ribonucleoprotein Complexes from Cell Extracts using RIP-Chip

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The organization and regulation of mRNA-protein complexes

Olivia S Rissland1,2

  • 1Molecular Structure and Function Program, The Hospital for Sick Children Research Institute, Toronto, ON, Canada.

Wiley Interdisciplinary Reviews. RNA
|June 22, 2016
PubMed

Insights

Messenger RNA-protein complexes (mRNPs) regulate gene expression by controlling mRNA fate. Advanced sequencing technologies now enable deeper understanding of mRNP organization and function in gene regulation.

Area of Science:

  • Molecular Biology
  • Gene Expression Regulation
  • Posttranscriptional Control

Background:

  • Messenger RNA (mRNA) molecules associate with proteins to form messenger ribonucleoprotein complexes (mRNPs) in eukaryotic cells.
  • These mRNPs are crucial for regulating gene expression, impacting mRNA translatability, stability, and transcriptome-wide control.
  • The complexity and dynamic nature of mRNPs have historically made them challenging to study.

Purpose of the Study:

  • To discuss general principles of cytoplasmic mRNP organization and regulation.
  • To highlight common themes in mRNP composition and function.
  • To examine microRNA-mediated repression as a case study for understanding mRNP roles.

Main Methods:

  • Review of general principles of mRNP organization.
  • Discussion of high-throughput sequencing technologies in mRNP research.
  • Case study analysis of microRNA-mediated repression.

Main Results:

  • mRNPs significantly influence mRNA lifecycle and gene expression control.
  • Cytoplasmic mRNPs regulate mRNA translatability and stability.
  • MicroRNA-mediated repression exemplifies the interplay between mRNP composition and posttranscriptional regulation.

Conclusions:

  • mRNPs represent a critical control point for gene expression regulation.
  • Despite challenges, recent technological advances offer new insights into mRNP function.
  • Understanding mRNPs is key to deciphering complex gene regulatory networks.

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