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Related Experiment Videos

Themes in RNA-protein recognition.

D E Draper1

  • 1Department of Chemistry, Johns Hopkins University, Baltimore, MD 21218, USA. draper@jhunix.hcf.jhu.edu

Journal of Molecular Biology
|November 5, 1999
PubMed
Summary
This summary is machine-generated.

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Protein structures reveal two main strategies for binding RNA: groove binding and pocket formation. Specificity arises from hydrogen bonds, non-polar contacts, and surface complementarity, indicating shared evolution with DNA-binding proteins.

Area of Science:

  • Structural Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Atomic resolution structures for over 20 protein-RNA complexes are now available.
  • Understanding protein-RNA interactions is crucial for molecular biology and drug discovery.

Purpose of the Study:

  • To review and categorize the structural themes of protein-RNA recognition.
  • To elucidate the mechanisms underlying RNA binding specificity.

Main Methods:

  • Analysis of existing atomic resolution structures of protein-RNA complexes.
  • Review of thermodynamic studies on protein-RNA binding.

Main Results:

  • Two primary classes of RNA-binding proteins identified: "groove binders" and those using beta-sheet surfaces to form pockets.

Related Experiment Videos

  • Groove binders recognize RNA sequence and groove shape, sometimes accommodating distorted A-form RNA.
  • Pocket-forming proteins interact with single-stranded RNA bases, with secondary structure sometimes aiding binding orientation.

    • Conclusions:

    • RNA binding specificity is determined by a combination of factors including base-specific hydrogen bonds, non-polar contacts, and mutual surface accommodation.
    • The recognition strategies of RNA-binding proteins share similarities with those of DNA-binding proteins, suggesting a common evolutionary origin.