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Related Experiment Videos

Structural plasticity associated with the beta-propeller architecture.

Kunchur Guruprasad1, Pugazhendhi Dhamayanthi

  • 1Bioinformatics, Centre for Cellular and Molecular Biology (CCMB), Uppal Road, Hyderabad 500007, India. guru@ccmb.res.in

International Journal of Biological Macromolecules
|June 5, 2004
PubMed
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Beta-propeller protein structures exhibit plasticity, with variations in beta-strands and secondary structures. Six types are identified, with 6- and 7-bladed propellers showing more structural diversity, aiding protein structure prediction.

Area of Science:

  • Structural biology
  • Bioinformatics
  • Protein architecture

Background:

  • Beta-propeller architecture is a common protein tertiary structure.
  • This architecture is classified into six types based on blade number and composition.
  • Structural plasticity is a key characteristic of beta-propellers.

Purpose of the Study:

  • To define a beta-sheet associated beta-strand pattern for beta-propellers.
  • To investigate the structural plasticity within different beta-propeller types.
  • To assess the utility of this pattern for protein structure prediction and modeling.

Main Methods:

  • Analysis of beta-propellers from the SCOP database (179 identified).
  • Examination of secondary structures using PDBsum.

Related Experiment Videos

  • Visualization of protein structures using graphics display.

    • Main Results:

    • A beta-sheet associated beta-strand pattern was generated.
    • Structural plasticity was observed in beta-propeller architecture.
    • Type 6- and 7-bladed beta-propellers are more common and exhibit greater structural variation.

    Conclusions:

    • The identified beta-strand pattern is potentially valuable for protein structure prediction.
    • Structural plasticity is more pronounced in sequence and functionally diverse beta-propeller types.
    • Understanding beta-propeller variations enhances knowledge of protein structure and function.