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Related Experiment Videos

Nuclear transport: randy couples.

I G Macara1

  • 1Department of Pharmacology, Center for Cell Signaling, University of Virginia, 7196 Hospital West, 577, Health Sciences Center, Charlottesville, Virginia 22908, USA. imacara@virginia.edu

Current Biology : CB
|June 22, 1999
PubMed
Summary
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Newly solved structures of Ran GTPase reveal tight protein interactions. These findings offer key insights into nuclear transport mechanisms and protein fold adaptability for diverse functions.

Area of Science:

  • Structural biology
  • Molecular biology
  • Biochemistry

Background:

  • Nuclear transport is crucial for eukaryotic cell function.
  • Ran GTPase is a key regulator of nuclear transport.
  • Karyopherin-beta2 is involved in nucleocytoplasmic transport.

Purpose of the Study:

  • To elucidate the structural basis of Ran GTPase interactions.
  • To understand the mechanism of nuclear transport regulation by Ran GTPase.
  • To explore protein fold adaptation in functional diversity.

Main Methods:

  • X-ray crystallography
  • Structural analysis
  • Biochemical assays

Main Results:

Related Experiment Videos

  • The solved structures show unusually tight binding interfaces between Ran GTPase and its partners.
  • These interactions highlight specific adaptations of common protein folds.
  • Insights into the conformational changes governing nuclear transport.

    • Conclusions:

    • The structural data provides a detailed mechanistic understanding of Ran GTPase function in nuclear transport.
    • Common protein folds can be highly adapted to perform distinct roles.
    • These findings have implications for understanding protein function and dysfunction.