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Transition path sampling and forward flux sampling. Applications to biological systems.

Fernando A Escobedo, Ernesto E Borrero, Juan C Araque

    Journal of Physics. Condensed Matter : an Institute of Physics Journal
    |August 11, 2011
    PubMed
    Summary

    This review covers transition path sampling methods for rare nanoscale events in biomolecules. It highlights forward flux sampling as an efficient yet underutilized technique for studying molecular dynamics.

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    Area of Science:

    • Computational Chemistry
    • Biophysics
    • Molecular Dynamics

    Background:

    • Rare nanoscale events in biomolecules are critical for function.
    • Simulation methods are increasingly used to study these events.
    • Transition path sampling (TPS) is a key computational approach.

    Purpose of the Study:

    • To provide a comprehensive overview of TPS methods.
    • To detail the principles behind major TPS techniques.
    • To focus on the forward flux sampling (FFS) method due to its potential.

    Main Methods:

    • Review of various transition path sampling algorithms.
    • Detailed explanation of the forward flux sampling methodology.
    • Focus on applications within biomolecular systems.

    Main Results:

    • TPS methods have rapidly advanced in the last decade.
    • FFS offers simplicity and efficiency but is underutilized.
    • Recent TPS applications include biomolecular isomerization, protein folding, and enzyme catalysis.

    Conclusions:

    • Transition path sampling is essential for understanding biomolecular mechanisms.
    • Forward flux sampling warrants broader adoption by researchers.
    • Further exploration of TPS in biomolecular simulations is encouraged.