MutaRNA: analysis and visualization of mutation-induced changes in RNA structure.

Area of Science:

• Molecular Biology
• Bioinformatics
• Computational Biology

Background:

• RNA molecules fold into intricate structures essential for their biological functions.
• Single-nucleotide variants (SNVs) and mutations can alter RNA structure, impacting gene regulation and cellular processes.
• Evaluating mutation effects on RNA structure is critical for understanding post-transcriptional regulation.

Purpose of the Study:

• To develop an intuitive web server, MutaRNA, for visualizing and interpreting mutation-induced changes in RNA structure.
• To provide a comparative analysis of RNA folding alterations caused by mutations.
• To facilitate the assessment of mutation impacts on RNA function and regulation.

Main Methods:

• Computation of base pairing probabilities and position-wise unpaired probabilities for wildtype and mutated RNA sequences.
• Development of differential heatmap-like dot plots for identifying local structure aberrations.
• Integration of circular plots and arc diagrams for comprehensive visualization of structural changes.

Main Results:

• MutaRNA offers an intuitive and integrative platform for RNA structure mutation analysis.
• The server effectively visualizes and compares structural changes, highlighting local aberrations.
• It provides a comprehensive overview of altered base pairing potentials and accessibility due to mutations.

Conclusions:

• MutaRNA simplifies the interpretation of mutation effects on RNA structure.
• The tool aids researchers in evaluating the functional consequences of genetic variations on RNA.
• MutaRNA enhances the understanding of post-transcriptional regulation and RNA-mediated cellular processes.