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Simplifying and enhancing the use of PyMOL with horizontal scripts.

Blaine H M Mooers1,2

  • 1Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma. blaine-mooers@ouhsc.edu.

Protein Science : a Publication of the Protein Society
|August 5, 2016
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Summary

Horizontal scripts in PyMOL streamline molecular visualization development. This method simplifies image creation and reproduction, enhancing research and education workflows.

Keywords:
Python scriptingmolecular artworkmolecular graphicsmolecular literacymolecular orientationmolecular visualizationreproducible researchscientific communicationscientific illustration

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Area of Science:

  • Computational chemistry
  • Structural biology
  • Scientific visualization

Background:

  • PyMOL is a widely used molecular visualization system.
  • Scripting in PyMOL offers precise control over output and reproducibility.
  • Traditional scripting methods can be cumbersome for complex scene generation.

Purpose of the Study:

  • To develop and present a simplified workflow for PyMOL script development.
  • To enhance the ease of creating and reproducing molecular visualizations.
  • To improve the efficiency of PyMOL usage in research and education.

Main Methods:

  • Introduction of horizontal scripts, where commands are semicolon-separated on a single line.
  • Development of a function to reformat PyMOL's 18-element viewport settings into a compact, single-line format.
  • Demonstration of mapping aliases to horizontal scripts for applying custom molecular representations.
  • Redefinition of horizontal scripts as Python functions to integrate with PyMOL's help system.

Main Results:

  • Horizontal scripts significantly accelerate PyMOL script development through interactive command-line editing.
  • A novel function enables efficient reformatting of viewport settings, facilitating horizontal script assembly.
  • Alias mapping allows for the consistent application of molecular representations across different structures.
  • Integration with the help function provides accessible documentation for custom scripts and aliases.

Conclusions:

  • The developed horizontal scripting methods simplify and enhance PyMOL usage.
  • These advancements improve the efficiency of generating and managing molecular visualizations.
  • The approach offers practical benefits for both scientific research and educational purposes.