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Intact DNA strands can be found in fossils, while scientists sometimes struggle to keep RNA intact under laboratory conditions. The structural variations between RNA and DNA underlie the differences in their stability and longevity. Because DNA is double-stranded, it is inherently more stable. The single-stranded structure of RNA is less stable but also more flexible and can form weak internal bonds. Additionally, most RNAs in the cell are relatively short, while DNA can be up to 250 million...
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Visualization of the small RNA transcriptome using seqclusterViz.

Lorena Pantano1, Francisco Pantano2, Eulalia Marti3

  • 1Biostatistics, Harvard T.H. Chan school of Public Health, Boston, MA, 02115, USA.

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|April 16, 2019
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Summary
This summary is machine-generated.

SeqclusterViz is a new tool for visualizing small RNAs, aiding gene regulation studies. It helps researchers identify and validate novel small RNA candidates in various organisms, including in Parkinson

Keywords:
miRNAreportsequencingsmall RNAsnoRNAtRNAvisualization

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Area of Science:

  • Genomics and Molecular Biology
  • Bioinformatics and Computational Biology

Background:

  • Small noncoding RNAs (small RNAs) play crucial roles in cellular gene regulation.
  • MicroRNAs (miRNAs), tRNA fragments, and piRNAs are key small RNA types in mammals.
  • Small RNA sequencing (small RNA-seq) enables simultaneous analysis of all small RNA types and detection of novel ones.

Purpose of the Study:

  • To introduce SeqclusterViz, an interactive HTML-javascript tool for visualizing small RNAs detected by Seqcluster.
  • To enable visualization of known and novel small RNA types in both model and non-model organisms.
  • To facilitate the selection of small RNA candidates for further experimental validation.

Main Methods:

  • Development of SeqclusterViz, an interactive visualization tool.
  • Utilization of SeqclusterViz to analyze small RNA data.
  • Validation of SeqclusterViz using human brain samples from Parkinson's disease patients.

Main Results:

  • SeqclusterViz provides three visualization panels: small RNA cluster tables with genomic locations, expression profiles with RNA secondary structures, and highly expressed sequences.
  • The tool allows for comprehensive visualization of small RNA data.
  • Successful validation of the tool's capabilities using human Parkinson's disease brain samples.

Conclusions:

  • SeqclusterViz is an effective tool for visualizing and analyzing small noncoding RNAs.
  • The tool supports the identification and validation of novel small RNA candidates across different organisms.
  • SeqclusterViz aids in understanding gene regulation complexity and can be applied to disease-specific studies, such as Parkinson's disease.