Prediction of new serine proteinase inhibitors.
Kurinov, I.V., Harrison, R.W.(1994) Nat Struct Biol 1: 735-743
- PubMed: 7634078 
- DOI: https://doi.org/10.1038/nsb1094-735
- Primary Citation of Related Structures:  
1TNG, 1TNH, 1TNI, 1TNJ, 1TNK, 1TNL - PubMed Abstract: 
We describe here the use of a rapid computational method to predict the relative binding strengths of a series of small-molecule ligands for the serine proteinase trypsin. Flexible molecular models of the ligands were docked to the proteinase using an all-atom potential set, without cutoff limits for the non-bonded and electrostatic energies. The binding-strength calculation is done directly in terms of a molecular mechanics potential. The binding of eighteen different compounds, including non-binding controls, has been successfully predicted. The measured Ki is correlated with the predicted energy. The correctness of the theoretical calculations is demonstrated with both kinetics measurements and X-ray structure determination of six enzyme-inhibitor complexes.
Organizational Affiliation: 
Department of Pharmacology, Thomas Jefferson University, Philadelphia, PA 19107, USA.