JNSViewer-A JavaScript-based Nucleotide Sequence Viewer for DNA/RNA secondary structures

Area of Science:

• Bioinformatics
• Computational Biology
• Molecular Biology

Background:

• Limited JavaScript tools exist for interactive RNA/DNA secondary structure visualization on web platforms.
• Web-based computational biology requires integrated solutions for structure prediction and annotation.

Purpose of the Study:

• To develop JNSViewer, a JavaScript-based interactive web service for DNA/RNA secondary structure visualization.
• To integrate popular secondary structure prediction tools and genome browsers for enhanced analysis.
• To facilitate the visualization of nucleotide correspondence, dot-bracket data, structure graphs, and genic annotations.

Main Methods:

• Developed JNSViewer as a highly interactive web service using JavaScript.
• Integrated multiple DNA/RNA secondary structure prediction tools.
• Incorporated genome browsers (JBrowse, BrowserGenome) for chromosomal and genic annotation visualization.
• Enabled customized GFF annotation import and sub-sequence structure extraction.

Main Results:

• JNSViewer provides precise, interactive correspondence between nucleotides, dot-bracket data, and structure graphs.
• Users can perform predictions, add custom annotations, and analyze specific genomic segments.
• Integration with genome browsers allows for comprehensive visualization of genomic context and secondary structures.
• Predicted RNA structures for Arabidopsis thaliana using StructureFold and high-throughput data are available.

Conclusions:

• JNSViewer offers a powerful, integrated platform for RNA/DNA secondary structure analysis in a web environment.
• The tool enhances visualization and analysis capabilities for plant genomics and RNA structure studies.
• JNSViewer serves as a valuable resource for researchers in bioinformatics and molecular biology.