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Related Experiment Video

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Identification of Circular RNAs using RNA Sequencing
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SHARAKU: an algorithm for aligning and clustering read mapping profiles of deep sequencing in non-coding RNA

Mariko Tsuchiya1, Kojiro Amano1, Masaya Abe1

  • 1Department of Biosciences and Informatics, Keio University, Yokohama 161-0031, Japan.

Bioinformatics (Oxford, England)
|June 17, 2016
PubMed
Summary

We developed SHARAKU, an algorithm that analyzes RNA sequencing data to identify RNA processing patterns. SHARAKU accurately detects common processing signatures in non-coding RNAs, improving the analysis of small RNA sequencing data.

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Area of Science:

  • Genomics
  • Bioinformatics
  • Molecular Biology

Background:

  • Deep sequencing of regulatory non-coding RNA reveals post-transcriptional processing footprints.
  • Read mapping profiles, distinct from random degradation, indicate RNA maturation processes.
  • Next-generation sequencing studies highlight miRNA maturation and small RNA processing from tRNAs and snoRNAs.

Purpose of the Study:

  • To develop an algorithm for aligning read mapping profiles of non-coding RNAs.
  • To detect common RNA processing patterns by incorporating sequence structures.
  • To improve the analysis of small RNA sequencing data.

Main Methods:

  • Developed the SHARAKU algorithm to align read mapping profiles.
  • Incorporated primary and secondary sequence structures into the alignment process.
  • Utilized simulated and experimental small RNA sequencing datasets for validation.

Main Results:

  • SHARAKU demonstrated superior performance in clustering read mapping profiles compared to previous methods.
  • The algorithm accurately identified 5'-end and 3'-end processing patterns.
  • SHARAKU successfully identified clusters of similar processing patterns in brain-derived small RNAs.

Conclusions:

  • SHARAKU is an effective tool for analyzing RNA processing patterns from sequencing data.
  • The algorithm enhances the detection of common processing signatures in non-coding RNAs.
  • SHARAKU provides valuable insights into small RNA biogenesis and function.