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- W2008453760 endingPage "7053" @default.
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- W2008453760 abstract "As a result of research on ligand efficiency in the pharmaceutical industry, there is greater focus on optimizing the strength of polar interactions within receptors, so that the contribution of overall size and lipophilicity to binding can be decreased. A number of quantum mechanical (QM) methods involving simple probes are available to assess the H-bonding potential of different heterocycles or functional groups. However, in most receptors, multiple features are present, and these have distinct directionality, meaning very minimalist models may not be so ideal to describe the interactions. We describe how the use of gas phase QM models of kinase protein–ligand complex, which can more closely mimic the polar features of the active site region, can prove useful in assessing alterations to a core template, or different substituents. We investigate some practical issues surrounding the use of QM cluster models in structure based design (SBD). These include the choice of the method; semi-empirical, density functional theory or ab-initio, the choice of the basis set, whether to include implicit or explicit solvation, whether BSSE should be included, etc. We find a combination of the M06-2X method and the 6-31G* basis set is sufficiently rapid, and accurate, for the computation of structural and energetic parameters for this system." @default.
- W2008453760 created "2016-06-24" @default.
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- W2008453760 date "2012-01-01" @default.
- W2008453760 modified "2023-09-25" @default.
- W2008453760 title "Evaluating the enthalpic contribution to ligand binding using QM calculations: effect of methodology on geometries and interaction energies" @default.
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- W2008453760 doi "https://doi.org/10.1039/c2ob25657f" @default.
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