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Related Experiment Videos

Mapping nucleic acid structure by hydroxyl radical cleavage.

Thomas D Tullius1, Jason A Greenbaum

  • 1Department of Chemistry, Boston University, Boston MA 02215, USA. tullius@bu.edu

Current Opinion in Chemical Biology
|April 7, 2005
PubMed
Summary
This summary is machine-generated.

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Hydroxyl radical footprinting reveals RNA folding pathways and structures at single-nucleotide resolution. This method, applied to complex RNAs like ribozymes, offers quantitative analysis of folding kinetics.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Structural Biology

Background:

  • Hydroxyl radical footprinting is a key technique for studying RNA folding in solution.
  • It provides single-nucleotide resolution of solvent accessibility, crucial for understanding RNA structure.
  • This method has been instrumental in elucidating the folding of complex RNA molecules.

Purpose of the Study:

  • To detail the folding pathways and 3D structures of various RNA molecules.
  • To apply hydroxyl radical footprinting to complex RNA systems, including synthetic and natural ribozymes.
  • To advance the analysis of hydroxyl radical footprinting data for quantitative insights.

Main Methods:

  • Hydroxyl radical footprinting to assess nucleotide solvent accessibility.

Related Experiment Videos

  • Combined with global structure measures for comprehensive analysis.
  • Semi-automated and quantitative analysis of large datasets from kinetic folding experiments.

    • Main Results:

    • Detailed folding pathways and 3D structures determined for complex RNA molecules.
    • Successful application to synthetic ribozymes, group I and II ribozymes from yeast, Azoarcus, and Tetrahymena.
    • Improved methods for semi-automated, quantitative analysis of hydroxyl radical footprinting data.

    Conclusions:

    • Hydroxyl radical footprinting is a powerful tool for RNA structural biology.
    • The method enables simultaneous tracking of folding across all RNA domains.
    • Advances in data analysis facilitate quantitative understanding of RNA folding kinetics and structure.