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Related Concept Videos

Conservation of Protein Domains Over Different Proteins02:26

Conservation of Protein Domains Over Different Proteins

Protein domains are small structurally independent units that are part of a single amino acid chain.  Although these domains are often structurally independent, they may rely on synergistic effects to perform their functions as part of a larger protein. Protein domains may be conserved within the same organism, as well as across different organisms.
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Study of Protein Dynamics via Neutron Spin Echo Spectroscopy
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Bounding volumes for proteins: a comparative study.

Rasmus Fonseca1, Pawel Winter

  • 1Department of Computer Science, University of Copenhagen, Copenhagen, Denmark.

Journal of Computational Biology : a Journal of Computational Molecular Cell Biology
|October 13, 2012
PubMed
Summary
This summary is machine-generated.

Chain trees efficiently model protein conformations. Simple spheres offer the best performance for bounding volumes due to fast overlap checks, improving computational speed.

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Area of Science:

  • Computational Biology
  • Structural Bioinformatics
  • Molecular Modeling

Background:

  • Chain trees are data structures for modeling dynamic protein conformations.
  • Efficient clash detection and energy calculations depend on bounding volume performance.
  • Optimizing bounding volumes is crucial for chain tree efficiency.

Purpose of the Study:

  • To compare the performance of different bounding volume types within chain trees.
  • To evaluate bounding volume tightness and intersection test efficiency.
  • To assess the impact of bounding volumes on adjustable chain trees.

Main Methods:

  • Comparison of four bounding volume types: oriented bounding boxes, rectangular-swept spheres, line-swept spheres, and simple spheres.
  • Evaluation of bounding volume tightness and speed of overlap checks.
  • Analysis of performance impact on adjustable chain trees.

Main Results:

  • Oriented bounding boxes performed below expectations.
  • Rectangular- and line-swept spheres showed good tightness.
  • Simple spheres and line-swept spheres were significantly faster due to efficient overlap checks.

Conclusions:

  • Simple spheres and line-swept spheres are recommended for chain tree applications.
  • Bounding volume choice significantly impacts chain tree performance.
  • Further investigation into adjustable chain trees with various bounding volumes is warranted.