Journal
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
Volume 38, Issue 1, Pages 1-7Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.etap.2014.04.019
Keywords
PCDDs; PCDFs; PCBs; Binding affinity; Aryl hydrocarbon receptor; CoMSIA
Funding
- National Natural Science Foundation of China (NSFC) [81273122]
- Postdoctoral Research Sponsorship in Henan Province [2013014]
- Innovation Project for Graduate Student of Jiangsu Province [CXZZ12_0123]
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Polychlorinated Dibenzodioxins (PCDDs), Dibenzofurans (PCDFs) and Biphenyls (PCBs) are industrial compounds or byproducts that can cause toxic effects after binding to aryl hydrocarbon receptor (AhR). But the mechanism about PCDDs, PCDFs and PCBs binding to AhR is unclear. To study the interaction and significant amino acid residues in binding of PCDDs, PCDFs and PCBs to AhR, a docking-based Comparative Molecular Similarity Indices Analysis (CoMSIA) was performed on a set of structurally diverse PCDDs, PCDFs and PCBs with known binding affinities. The docking-based CoMSIA model (non-cross-validated regression coefficient of 0.942 and cross-validated regression coefficient of 0.768) was developed and compared with previous report, the presented docking-based CoMSIA model showed good robustness and predictive performance. The obtained docking conformations and predictive CoMSIA model could provide clues to understand key residues and interactions between receptor and compounds of interest. (C) 2014 Elsevier B.V. All rights reserved.
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