PMID- 14667231 OWN - NLM STAT- MEDLINE DCOM- 20040120 LR - 20061115 IS - 0022-2623 (Print) IS - 0022-2623 (Linking) VI - 46 IP - 26 DP - 2003 Dec 18 TI - Improving structure-based virtual screening by multivariate analysis of scoring data. PG - 5781-9 AB - Three different multivariate statistical methods, PLS discriminant analysis, rule-based methods, and Bayesian classification, have been applied to multidimensional scoring data from four different target proteins: estrogen receptor alpha (ERalpha), matrix metalloprotease 3 (MMP3), factor Xa (fXa), and acetylcholine esterase (AChE). The purpose was to build classifiers able to discriminate between active and inactive compounds, given a structure-based virtual screen. Seven different scoring functions were used to generate the scoring matrices. The classifiers were compared to classical consensus scoring and single scoring functions. The classifiers show a superior performance, with rule-based methods being most effective. The precision of correctly predicting an active compound is about 90% for three of the targets and about 25% for acetylcholine esterase. On the basis of these results, a new two-stage approach is suggested for structure-based virtual screening where limited activity information is available. FAU - Jacobsson, Micael AU - Jacobsson M AD - Structural Chemistry, Biovitrum AB, SE-112 76 Stockholm, Sweden. micael.jacobsson@biovitrum.com FAU - Liden, Per AU - Liden P FAU - Stjernschantz, Eva AU - Stjernschantz E FAU - Bostrom, Henrik AU - Bostrom H FAU - Norinder, Ulf AU - Norinder U LA - eng PT - Comparative Study PT - Journal Article PL - United States TA - J Med Chem JT - Journal of medicinal chemistry JID - 9716531 RN - 0 (Estrogen Receptor alpha) RN - 0 (Ligands) RN - 0 (Receptors, Estrogen) RN - EC 3.1.1.7 (Acetylcholinesterase) RN - EC 3.4.21.6 (Factor Xa) RN - EC 3.4.24.17 (Matrix Metalloproteinase 3) SB - IM MH - Acetylcholinesterase/chemistry MH - Binding Sites MH - Estrogen Receptor alpha MH - Factor Xa/chemistry MH - Ligands MH - Matrix Metalloproteinase 3/chemistry MH - *Multivariate Analysis MH - *Quantitative Structure-Activity Relationship MH - Receptors, Estrogen/chemistry EDAT- 2003/12/12 05:00 MHDA- 2004/01/21 05:00 CRDT- 2003/12/12 05:00 PHST- 2003/12/12 05:00 [pubmed] PHST- 2004/01/21 05:00 [medline] PHST- 2003/12/12 05:00 [entrez] AID - 10.1021/jm030896t [doi] PST - ppublish SO - J Med Chem. 2003 Dec 18;46(26):5781-9. doi: 10.1021/jm030896t.