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- W2025113280 abstract "Abstract A semiempirical quantum mechanical approach is described for the creation of molecular field‐based QSAR models from a set of aligned ligand structures. Each ligand is characterized by a set of probe interaction energy (PIE) values computed at various grid points located near the surface of the ligand. Single‐point PM3 calculations afford these PIE values, which represents a pool of independent variables from which multilinear regression models of activity are built. The best n ‐variable fit is determined by constructing an initial regression using standard forward stepwise selection, followed by refinement using a simulated annealing technique. The resulting fit provides an easily interpreted 3D physical model of ligand binding affinity. Validation against three literature datasets demonstrates the ability of the semiempirical potential to model critical binding interactions in diverse systems. © 2004 Wiley Periodicals, Inc. J Comput Chem 26: 23–34, 2005" @default.
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- W2025113280 date "2004-11-03" @default.
- W2025113280 modified "2023-10-17" @default.
- W2025113280 title "QMQSAR: Utilization of a semiempirical probe potential in a field-based QSAR method" @default.
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- W2025113280 doi "https://doi.org/10.1002/jcc.20142" @default.
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