Journal of Computer-Aided Molecular Design

, Volume 8, Issue 5, pp 527–544

Electrostatic complementarity between proteins and ligands. 2. Ligand moieties

  • P. -L. Chau
  • P. M. Dean
Research Papers

DOI: 10.1007/BF00123664

Cite this article as:
Chau, P.L. & Dean, P.M. J Computer-Aided Mol Des (1994) 8: 527. doi:10.1007/BF00123664


Drug design strategies consider factors governing intermolecular interactions to build up putative ligands. In many strategies, the ligand is constructed using fragments which are placed in the site sequentially. The optimization is then performed with each fragment. We would like to examine if this optimization strategy could generate ligands with optimal electrostatic interactions. The electrostatic complementarities between constituent moieties and the receptor site have been calculated. The whole-ligand complementarity does not appear to be the mathematical mean of the individual complementarities, nor have we found a simple relationship between the moiety and whole-ligand complementarities. The results demonstrate clearly that, using a simple model, it is very difficult to predict the electrostatic potential complementarity of the whole ligand from the complementarities of its constituent chemical moieties. This means that ligand design strategies must optimize the electrostatic complementarity globally, and not moiety by moiety.

Key words

Drug design Molecular electrostatic potential MEP 

Copyright information

© ESCOM Science Publishers B.V 1994

Authors and Affiliations

  • P. -L. Chau
    • 1
  • P. M. Dean
    • 1
  1. 1.Department of PharmacologyUniversity of CambridgeCambridgeU.K.