Validation of DAPPER for 3D QSAR: Conformational Search and Chirality Metric

Adequate conformational searching of small molecules and inclusion of a chirality identifier are necessary features of any current technique for quantitative structure-activity relationships (QSAR). However, implementation of these features can be difficult and computationally expensive, and some techniques can still lead to insufficient treatment of molecular conformation. We select the standard systematic conformational search as the default search method for our recent 3D QSAR program, DAPPER, and develop a novel chirality metric for use in QSAR. These techniques are implemented in DAPPER and validated on standard data sets.

[1]  Martin Saunders,et al.  Conformations of cycloheptadecane. A comparison of methods for conformational searching , 1990 .

[2]  Gordon M. Crippen VRI: 3D QSAR at variable resolution , 1999, J. Comput. Chem..

[3]  A Tropsha,et al.  Structure-based alignment and comparative molecular field analysis of acetylcholinesterase inhibitors. , 1996, Journal of medicinal chemistry.

[4]  Gordon M Crippen,et al.  Three-dimensional molecular descriptors and a novel QSAR method. , 2002, Journal of molecular graphics & modelling.

[5]  Gordon M. Crippen,et al.  Prediction of Physicochemical Parameters by Atomic Contributions , 1999, J. Chem. Inf. Comput. Sci..

[6]  R. Langridge,et al.  On the structure selectivity problem in drug design. A comparative study of benzylpyrimidine inhibition of vertebrate and bacterial dihydrofolate reductase via molecular graphics and quantitative structure-activity relationships. , 1989, Journal of medicinal chemistry.

[7]  Irwin D. Kuntz,et al.  ELECT++: Faster conformational search method for docking flexible molecules using molecular similarity , 1998, J. Comput. Chem..

[8]  John Bradshaw,et al.  Similarity and Dissimilarity Methods for Processing Chemical Structure Databases , 1998, Comput. J..

[9]  R. Langridge,et al.  Crystallography, quantitative structure-activity relationships, and molecular graphics in a comparative analysis of the inhibition of dihydrofolate reductase from chicken liver and Lactobacillus casei by 4,6-diamino-1,2-dihydro-2,2-dimethyl-1-(substituted-phenyl)-s-triazine s. , 1984, Journal of medicinal chemistry.

[10]  Gilles Moreau,et al.  Atomic Chirality, a Quantitative Measure of the Chirality of the Environment of an Atom , 1997, J. Chem. Inf. Comput. Sci..

[11]  J M Blaney,et al.  Comparison of the inhibition of Escherichia coli and Lactobacillus casei dihydrofolate reductase by 2,4-diamino-5-(substituted-benzyl)pyrimidines: quantitative structure-activity relationships, X-ray crystallography, and computer graphics in structure-activity analysis. , 1982, Journal of medicinal chemistry.

[12]  Andrew Smellie,et al.  Poling: Promoting conformational variation , 1995, J. Comput. Chem..

[13]  Dorica Mayer,et al.  A unique geometry of the active site of angiotensin-converting enzyme consistent with structure-activity studies , 1987, J. Comput. Aided Mol. Des..

[14]  J. Gasteiger,et al.  ITERATIVE PARTIAL EQUALIZATION OF ORBITAL ELECTRONEGATIVITY – A RAPID ACCESS TO ATOMIC CHARGES , 1980 .

[15]  S. Stanley Young,et al.  Automated Pharmacophore Identification for Large Chemical Data Sets. , 1999 .

[16]  Vladimir Prelog,et al.  Specification of Molecular Chirality , 1966 .

[17]  V. Kuz'min,et al.  Quantitative aspects of chirality. I. Method of dissymmetry function , 1992 .

[18]  Gordon M. Crippen,et al.  Evaluation of Ligand Overlap by Atomic Parameters , 2001, J. Chem. Inf. Comput. Sci..

[19]  W G Richards,et al.  Molecular similarity, quantitative chirality, and QSAR for chiral drugs. , 1994, Journal of medicinal chemistry.

[20]  C. Ingold,et al.  The specification of asymmetric configuration in organic chemistry , 1956, Experientia.

[21]  D. Ferguson,et al.  A new approach to probing conformational space with molecular mechanics: Random incremental pulse search , 1989 .

[22]  M C Nicklaus,et al.  Conformational changes of small molecules binding to proteins. , 1995, Bioorganic & medicinal chemistry.

[23]  Xin Chen,et al.  Automated Pharmacophore Identification for Large Chemical Data Sets1 , 1999, J. Chem. Inf. Comput. Sci..