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QSAR and QSPR based solely on surface properties?

Timothy Clark1

  • 1Computer-Chemie-Centrum, Universität Erlangen-Nürnberg, Nägelsbachstrasse 25, 91052 Erlangen, Germany. clark@chemie.uni-enlargen.de

Journal of Molecular Graphics & Modelling
|June 9, 2004
PubMed
Summary

Local surface properties enhance Quantitative Structure-Property Relationship (QSPR) models by linking to intermolecular interactions. While these descriptors aid scaffold hopping, interpretability requires advanced model interrogation techniques for chemical insight.

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Area of Science:

  • Computational Chemistry
  • Cheminformatics
  • Quantitative Structure-Property Relationship (QSPR) modeling

Background:

  • Traditional QSPR models often rely on descriptors encoding direct chemical constitution.
  • Molecular surface properties offer an alternative descriptor space for QSPR.
  • Understanding intermolecular interactions is crucial for accurate predictive modeling.

Purpose of the Study:

  • To discuss the utility of local molecular surface properties as descriptors in QSPR.
  • To explore the relationship between surface-based descriptors and intermolecular forces.
  • To address the interpretability challenges associated with surface-based descriptors.

Main Methods:

  • Analysis of descriptors based on local properties calculated at the molecular surface.

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  • Examination of the link between surface descriptors and the physical theory of intermolecular interactions.
  • Discussion of model-interrogation techniques to improve descriptor interpretability.

    • Main Results:

    • Descriptors based on local surface properties can yield effective QSPR models.
    • These descriptors are related to fundamental types of intermolecular interactions.
    • Models using such descriptors may facilitate scaffold hopping due to less direct chemical encoding.

    Conclusions:

    • Surface-based local property descriptors offer a valuable approach for QSPR model development.
    • Connecting these descriptors to intermolecular interaction theory enhances their physical basis.
    • Effective model-interrogation strategies are essential to overcome the interpretability limitations of surface-based descriptors.