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Related Concept Videos

Nonsense-mediated mRNA Decay02:27

Nonsense-mediated mRNA Decay

The Upf proteins that carry out nonsense-mediated decay (NMD) are found in all eukaryotic organisms, including humans. Each protein has an individual role, but they need to work in collaboration. Upf1 is an ATP-dependent RNA helicase that unwinds the RNA helix. Because Upf1 can unwind any RNA, Upf2 and Upf3 are required to help Upf1 discriminate between nonsense and normal mRNAs.
Usually, Upf3 binds to an Exon Junction Complex (EJC) at mRNA splice sites. If a ribosome fully translates the mRNA,...
RNA Editing02:23

RNA Editing

RNA editing is a post-transcriptional modification where a precursor mRNA (pre-mRNA) nucleotide sequence is changed by base insertion, deletion, or modification. The extent of RNA editing varies from a few hundred bases, in mitochondrial DNA of trypanosomes, to a just single base, in nuclear genes of mammals. Even a single base change in the pre-mRNA can convert a codon for one amino acid into the codon for another amino acid or a stop codon. This type of re-coding can significantly affect the...

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Implementation of In Vitro Drug Resistance Assays: Maximizing the Potential for Uncovering Clinically Relevant Resistance Mechanisms
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Mutational analysis in RNAs: comparing programs for RNA deleterious mutation prediction.

Danny Barash1, Alexander Churkin

  • 1Department of Computer Science, Ben-Gurion University, 84105 Beer-Shera, Israel. dbarash@cs.bgu.ac.il

Briefings in Bioinformatics
|March 23, 2011
PubMed
Summary

This review details three RNA mutational analysis programs: RNAMute, RDMAS, and RNAmutants. These tools aid in predicting RNA mutations for various applications, including virus replication and regulatory sequence analysis.

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Last Updated: Jun 3, 2026

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Area of Science:

  • Computational Biology
  • Bioinformatics
  • Molecular Biology

Background:

  • Structure-based RNA mutational analysis tools have advanced significantly.
  • These programs are crucial for understanding RNA virus replication, translation, and regulation.

Purpose of the Study:

  • To review and compare three freeware programs for RNA mutational analysis: RNAMute, RDMAS, and RNAmutants.
  • To highlight their capabilities in predicting RNA mutations and their applications.

Main Methods:

  • Description of RNAMute, RDMAS, and RNAmutants.
  • Comparison of their underlying methodologies, including energy minimization prediction (RNAfold, Mfold).
  • Evaluation of their capacity for single-point versus multiple-point mutation predictions.

Main Results:

  • RNAMute and RDMAS utilize energy minimization prediction.
  • RNAmutants offers an efficient method for large-scale simulations of k-mutants.
  • RNAMute (extended version) and RNAmutants can predict multiple-point mutations, while RDMAS is limited to single-point mutations.

Conclusions:

  • RNAMute excels at accurate prediction of a small number of point mutations.
  • RNAmutants is suitable for extensive simulations involving numerous mutations.
  • These programs offer valuable tools for diverse RNA research applications.