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Detecting Agotrons in Ago CLIPseq Data.

Thomas B Hansen1

  • 1Department of Molecular Biology and Genetics (MBG) and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus, Denmark. tbh@mbg.au.dk.

Methods in Molecular Biology (Clifton, N.J.)
|July 1, 2018
PubMed
Summary
This summary is machine-generated.

Researchers have discovered agotrons, a novel class of gene regulators derived from introns that bypass typical microRNA (miRNA) processing. A new bioinformatics tool, agotron_detector, enables their identification in CLIP-seq data.

Keywords:
AgoAgotronArgonauteCLIPGene regulationMirtronRNA sequencingSmall RNA profilingmiRNA

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Area of Science:

  • Molecular Biology
  • Genomics
  • Bioinformatics

Background:

  • Gene expression regulation is crucial for all organisms.
  • MicroRNAs (miRNAs) are key regulators, but novel mechanisms exist.
  • Agotrons, a newly identified class of gene regulators, originate from introns and bind Argonaute (Ago) proteins.

Purpose of the Study:

  • To introduce a bioinformatics toolkit for identifying and quantifying agotrons.
  • To enable detailed characterization of agotrons in biological systems.
  • To facilitate research into the biological significance of agotrons.

Main Methods:

  • Development of the agotron_detector bioinformatics pipeline.
  • Utilizing Argonaute crosslinking immunoprecipitation sequencing (Ago CLIP-seq) datasets.
  • Analysis of non-canonical RNA biogenesis pathways.

Main Results:

  • Agotrons bypass canonical miRNA biogenesis, existing as full-length introns.
  • Agotrons are conserved in mammals and can deregulate messenger RNAs (mRNAs).
  • The agotron_detector tool successfully identifies and quantifies agotrons in CLIP-seq data.

Conclusions:

  • Agotrons represent a distinct class of gene regulators with a unique biogenesis pathway.
  • The agotron_detector provides a vital resource for studying these non-canonical RNA species.
  • Further research is needed to fully elucidate the biological roles of agotrons.