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J Comput Aided Mol Des. 1997 Nov;11(6):525-37.

IsoStar: a library of information about nonbonded interactions.

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  • 1Cambridge Crystallographic Data Centre, Cambridge, U.K.

Abstract

Crystallographic and theoretical (ab initio) data on intermolecular nonbonded interactions have been gathered together in a computerised library ('IsoStar'). The library contains information about the nonbonded contacts formed by some 250 chemical groupings. The data can be displayed visually and used to aid protein-ligand docking or the identification of bioisosteric replacements. Data from the library show that there is great variability in the geometrical preferences of different types of hydrogen bonds, although in general there is a tendency for H-bonds to form along lone-pair directions. The H-bond acceptor abilities of oxygen and sulphur atoms are highly dependent on intramolecular environments. The nonbonded contacts formed by many hydrophobic groups show surprisingly strong directional preferences. Many unusual nonbonded interactions are to be found in the library and are of potential value for designing novel biologically active molecules.

PMID:
9491345
[PubMed - indexed for MEDLINE]
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