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国家自然科学基金(s31100523)

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Pharmacophore and Docking-based 3D-QSAR Studies on HIV-1 Integrase Inhibitors被引量:1
2014年
Integrase(IN) plays an essential role in the process of HIV-1 replication.IN inhibitors of diketo acid derivatives(DKAs) were analysed by the Comparative Molecular Field Analysis(CoMFA) and Comparative Molecular Similarity Induces Analysis(CoMSIA) methods.A set of 42 compounds were randomly selected as the training set(35) and test set(7).Firstly,a good pharmacophore(goodness of hit=0.787) was obtained and used to align ligands.Then,predictive models were constructed with the CoMFA and CoMSIA methods based on the pharmacophore alignment.As a result,the CoMS1A method yielded the best model with an r2 of 0.955 and a q2 of 0.665,which can predict the activities of the tested DKAs very well(r2=0.559).Finally,DKAs were docked into IN,and the predicit modes were superimposed on the contour maps obtained from the best CoMSIA model.The superimposed maps gave a visualized and meaningful insight into the inhibitory behaviors,providing significantly useful information for the rational drug design of anti-IN agents.
ZHANG XiaoyiDENG DongjieTAN JianjunHE YuLI ChunhuaWANG Cunxin
关键词:PHARMACOPHORE
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