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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 1
BKCSDE 32(1)
January 20, 2011

Title	Pharmacophore Identification for Peroxisome Proliferator-Activated Receptor Gamma Agonists
Author	Young sik Sohn, Yuno Lee, Chanin Park, Swan Hwang, Songmi Kim, Ayoung Baek, Minky Son, Jung Keun Suh, Hyong Ha Kim, Keun Woo Lee
Keywords	Peroxisome proliferator activated receptor γ (PPARγ), Computer-aided drug design, Pharmacophore model, Virtual screening, Molecular docking
Abstract	Peroxisome proliferator-activated receptors (PPARs) are members of nuclear receptors and their activation induces regulation of fatty acid storage and glucose metabolism. Therefore, the PPARγ is a major target for the treatment of type 2 diabetes mellitus. In order to generate pharmacophore model, 1080 known agonists database was constructed and a training set was selected. The Hypo7, selected from 10 hypotheses, contains four features: three hydrogen-bond acceptors (HBA) and one general hydrophobic (HY). This pharmacophore model was validated by using 862 test set compounds with a correlation coefficient of 0.903 between actual and estimated activity. Secondly, CatScramble method was used to verify the model. Hence, the validated Hypo7 was utilized for searching new lead compounds over 238,819 and 54,620 chemical structures in NCI and Maybridge database, respectively. Then the leads were selected by screening based on the pharmacophore model, predictive activity, and Lipinski’s rules. Candidates were obtained and subsequently the binding affinities to PPARγ were investigated by the molecular docking simulations. Finally the best two compounds were presented and would be useful to treat type 2 diabetes.
Page	201 - 207
Full Text	PDF

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