Abstract
In our study, we have described chemical feature-based 3D QSAR pharmacophore models with help of known inhibitors of Factor Xa (FXa). The best model, Hypo1, has validated by various techniques to prove its robustness and statistical significance. The well validated Hypo1 was used as 3D query in the virtual screening to retrieve potential leads for FXa inhibition. The hit molecules were sort out by applying drug-like filters and molecular docking. Bayesian model was developed using training set compounds which provides molecular feature that are favoring or not favoring for FXa inhibition.
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Abbreviations
- FXa:
-
Factor Xa
- DS:
-
Discovery studio v2.5
- HBA:
-
Hydrogen bond acceptor
- HBD:
-
Hydrogen bond donor
- H:
-
Hydrophobic
- Haro:
-
Hydrophobic aromatic
- Hali:
-
Hydrophobic aliphatic
- R:
-
Ring aromatic
- PI:
-
Positive ionizable
- RMS:
-
Root mean square
- EF:
-
Enrichment factor
- GH:
-
Goodness of hit
- ADMET:
-
Absorption, distribution, metabolism, excretion, and toxicity
- BBB:
-
Blood–brain barrier
- ECFP:
-
Extended-connectivity fingerprints
- ROC:
-
Receiver operating curve
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Acknowledgments
This research was supported by Basic Science Research Program (2009-0073267), Pioneer Research Center Program (2009-0081539), and Management of Climate Change Program (2010-0029084) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (MEST) of Republic of Korea. And this study was also supported by the Next-Generation BioGreen21 Program (PJ008038) from Rural Development Administration (RDA) of Republic of Korea. Author thanks to Mr. Sundarapandian Thangapandian, Ph.D Scholar, Department of Biochemistry, and Gyeongsang National University, for his constant support in Bayesian Model part.
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44_2011_9936_MOESM1_ESM.tif
Fig. S1: 20 good molecular fingerprints that are favoring to inhibit FXa activity identified by ECPF_6 fingerprint descriptors. (TIFF 934 kb)
44_2011_9936_MOESM2_ESM.tif
Fig. S2: 20 bad molecular fingerprints that are not favoring to inhibit FXa activity identified by ECFP_6 fingerprint descriptors. (TIFF 932 kb)
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Chandrasekaran, M., Sakkiah, S. & Lee, K.W. Combined chemical feature-based assessment and Bayesian model studies to identify potential inhibitors for Factor Xa. Med Chem Res 21, 4083–4099 (2012). https://doi.org/10.1007/s00044-011-9936-2
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DOI: https://doi.org/10.1007/s00044-011-9936-2