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Antioxidant QSAR Modeling as Exemplified on Polyphenols

  • Bono Lučić
  • Dragan Amić
  • Nenad Trinajstić
Protocol
Part of the Methods In Molecular Biology book series (MIMB, volume 477)

Abstract

Methodology for deriving quantitative structure-activity relationship (QSAR) models based on computed molecular descriptors, representing numerically structural features of polyphenols, and applicable to the antioxidant activity of polyphenols is delineated. The application of this methodology is illustrated on a data set of 100 polyphenols. Prior to the computation of molecular descriptors, molecular structures are coded in the SMILES form, a computer-acceptable version of structure, and then converted to the 3D form by the CORINA program. Using 3D structures, molecular descriptors can be calculated by one of several programs developed (we used the DRAGON program in this study). Finally, using computer program for selection of most important descriptors in the model, a two-descriptor model is selected and its use is illustrated.

Key words

Polyphenols Flavonoids Antioxidant activity Free radical scavenging QSAR Quantitative structure-activity relationship Molecular descriptors TEAC assay ABTS 

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Copyright information

© Humana Press, a part of Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Bono Lučić
    • 1
  • Dragan Amić
    • 2
  • Nenad Trinajstić
    • 3
  1. 1.The Rugjer Bǒskovíc InstituteCroatia
  2. 2.Faculty of AgricultureThe Josip Juraj Strossmayer UniversityCroatia
  3. 3.The Rugjer Boškovíc InstituteCroatia

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