Recently a semiempirical method has been proposed by Aqvist et al. to calculate absolute and relative binding free energies. We are investigating how the optimal value of Delta depends on the nature of binding sites for different protein-ligand interactions. By examining seven ligands interacting with five proteins, we have discovered a linear correlation between the value of Delta and the weighted non-polar desolvation ratio (WNDR), with a correlation coefficient of 0.96. Thus the LIE method can be expected to be more widely used in finding novel leads for ligands that bind tightly to macromolecules.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
3P41RR001081-22S1
Application #
6220356
Study Section
Project Start
1999-07-01
Project End
2000-06-30
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
22
Fiscal Year
1999
Total Cost
Indirect Cost
Name
University of California San Francisco
Department
Type
DUNS #
073133571
City
San Francisco
State
CA
Country
United States
Zip Code
94143
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