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Annotating PDB files with scene information

G S Couch1, E F Pettersen, C C Huang

  • 1Computer Graphics Laboratory, University of California, San Francisco 94143-0446, USA.

Journal of Molecular Graphics
|June 1, 1995
PubMed
Summary
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New extensions to the Protein Data Bank (PDB) file format allow for detailed scene and molecular information, enabling complex molecular visualizations. These PDB format enhancements are powerful and sufficient for advanced molecular graphics.

Area of Science:

  • Structural Biology
  • Computational Chemistry
  • Bioinformatics

Background:

  • The Protein Data Bank (PDB) file format is a standard for storing macromolecular structure data.
  • Current PDB format limitations hinder the incorporation of detailed scene and graphical information for molecular visualization.
  • Advanced molecular graphics require richer data beyond atomic coordinates.

Purpose of the Study:

  • To propose and implement extensions to the PDB file format.
  • To enable the inclusion of scene parameters, enhanced molecular attributes, and user-defined graphics.
  • To facilitate the generation of diverse and complex molecular visualizations.

Main Methods:

  • Developed extensions to the existing PDB file format.
  • Ensured extensions conform to the PDB standard.

Related Experiment Videos

  • Integrated extensions into the MidasPlus molecular modeling system for practical application.

    • Main Results:

    • The extended PDB format successfully incorporates viewing parameters, van der Waals radii, atom colors, and user-defined graphics.
    • These extensions provide sufficient information for rendering molecular scenes in various styles (e.g., space-filling, ribbon diagrams).
    • The MidasPlus system has utilized these extensions for five years, demonstrating their power and sufficiency.

    Conclusions:

    • The proposed PDB file format extensions are effective for enhancing molecular visualization capabilities.
    • These extensions offer a standardized method for richer molecular data representation.
    • Adoption by the molecular modeling community is recommended for broader integration into visualization programs.