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Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
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Novel RNA-Binding Proteins Isolation by the RaPID Methodology
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Circular RNAs Binding to RNA-Binding Proteins.

Mandakini Singh1, Kirthik Roshan1, Srinivasan Muthuswamy1

  • 1Department of Life Science, National Institute of Technology (NIT) Rourkela, Odisha, India.

Advances in Experimental Medicine and Biology
|August 31, 2025
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Summary

Circular RNAs (circRNAs) interact with RNA-binding proteins (RBPs) to regulate gene expression and cellular functions. Understanding these circRNA-RBP interactions is key to deciphering disease mechanisms.

Keywords:
CircRNAMicroRNA spongingProtein scaffoldRBPTranslatable circRNA

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Area of Science:

  • Molecular Biology
  • Genomics
  • Biochemistry

Background:

  • Circular RNAs (circRNAs) are novel noncoding RNAs found across metazoan transcriptomes.
  • circRNAs play critical roles in cellular development and diseases like cancer and neurodegenerative disorders (NDDs).
  • circRNAs function by interacting with RNA-binding proteins (RBPs), which regulate gene expression through diverse mechanisms.

Purpose of the Study:

  • To describe newly discovered mechanisms of circRNA-RBP interactions.
  • To elucidate the functional significance of these interactions in biological processes and diseases.

Main Methods:

  • High-throughput RNA sequencing was used to identify circRNAs.
  • The study focuses on the mechanisms of circRNA-RBP complex formation and function.
  • Analysis of disease associations linked to circRNA-RBP relationships.

Main Results:

  • circRNAs extensively interact with RBPs, influencing their cellular functions.
  • These interactions modify the operation of other RNAs and proteins.
  • Numerous diseases are associated with specific circRNA-RBP relationships.

Conclusions:

  • circRNA-RBP interactions are fundamental to cellular regulation.
  • Research into these interactions is crucial for understanding disease origins.
  • Elucidating these mechanisms offers insights into novel therapeutic targets.