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  • Title: Calculation of ligand-nucleic acid binding free energies with the generalized-born model in DOCK.
    Author: Kang X, Shafer RH, Kuntz ID.
    Journal: Biopolymers; 2004 Feb 05; 73(2):192-204. PubMed ID: 14755577.
    Abstract:
    The calculation of ligand-nucleic acid binding free energies is investigated by including solvation effects computed with the generalized-Born model. Modifications of the solvation module in DOCK, including introduction of all-atom parameters and revision of coefficients in front of different terms, are shown to improve calculations involving nucleic acids. This computing scheme is capable of calculating binding energies, with reasonable accuracy, for a wide variety of DNA-ligand complexes, RNA-ligand complexes, and even for the formation of double-stranded DNA. This implementation of GB/SA is also shown to be capable of discriminating strong ligands from poor ligands for a series of RNA aptamers without sacrificing the high efficiency of the previous implementation. These results validate this approach to screening large databases against nucleic acid targets.
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