2D-QSAR Using MLR and 3D-QSAR Using CoMSIA Studies on the Toxicity of Aromatic Hydrocarbons on Larval Sinonvaculina Constricta
文献类型: 外文期刊
第一作者: Wu Yang
作者: Wu Yang;Wang Cui-Hua;Jiang Mei;Shen Xin-Qiang;Li Xiao-Lin;Yu Hong-Xia
作者机构:
关键词: aromatic hydrocarbons;larval Sinonvaculina constricta;acute toxicity;CoMSIA;MLR
期刊名称:CHINESE JOURNAL OF STRUCTURAL CHEMISTRY ( 影响因子:0.893; 五年影响因子:0.603 )
ISSN: 0254-5861
年卷期: 2012 年 31 卷 3 期
页码:
收录情况: SCI
摘要: Aromatic hydrocarbons, one of the persistent organic pollutants (POPs), has been usually found in mussels, accumulated for their hard mobility and activities in harbours and estuaries. In this study, based on the 96 hr-LC50 of 12 aromatic hydrocarbons with larval sinonvaculina constricta, three-dimensional quantitative structure-activity relationship (3D-QSAR) technique: comparative molecular similarity indices analysis (CoMSIA) and 2D-QSAR technique: multiple linear regression (MLR) were described to obtain more detailed insight into the structure-activity relationships between the molecular structure and bio-activity. The results show the MLR model based on density functional theory (DFT) calculation carried out at the B3LYP/6-311** level with Gaussian 03 program yielded a very good correlation with a coefficient squared R-2 of 0.716 and a cross-validated Q(2) of 0.874. The dipole moment and enthalpy, as the thermodynamic parameters, were two important factors influencing pLC(50). Correspondingly, CoMSIA based on the partial least-squares (PLS) methodology with steric, electrostatic, hydrophobic, H-bond donor and acceptor fields contributing simultaneously were employed and the values of R-2 and the cross validation with leave-One-Out (LOO) Q(LOO)(2) were 0.585 and 0.990, respectively, which reveals the structure features, such as the electronegative substituent (nitro-group), hydrophobic groups (the benzene ring) and H-bond (nitro-group), related to the toxicity. The results of 2D-QSAR employing MLR model and 3D-QSAR employing CoMSIA model provide the useful information for predicting the toxicity of other aromatic hydrocarbons by comparing the molecular structures of similar compounds.
分类号:
- 相关文献
作者其他论文 更多>>
-
Drip irrigation incorporating water conservation measures: Effects on soil water-nitrogen utilization, root traits and grain production of spring maize in semi-arid areas
作者:Wu Yang;Bian Shao-feng;Liu Zhi-ming;Wang Li-chun;Wang Yong-jun;Wu Yang;Xu Wen-hua;Zhou Yu
关键词:drip irrigation; root; water use efficiency; nitrogen use efficiency; maize
-
Effect of intercropping on maize grain yield and yield components
作者:Huang Cheng-dong;Li Xiao-lin;Zhang Chao-chun;Huang Cheng-dong;Li Xiao-lin;Zhang Chao-chun;Liu Quan-qing
关键词:maize; ear density; intercropping; double cropping; cultivars
-
Applications of High-Resolution Mass Spectrometry in Determination of Chlorinated Paraffins
作者:Huang Xiao-Mei;Wang Fu-Hua;Wang Xu;Li Ya-Fei;Wu Wei-Yun;Wu Yang;Cui Jun-Tao;Huang Xiao-Mei;Wang Fu-Hua;Wang Xu;Li Ya-Fei;Wu Wei-Yun;Wu Yang;Cui Jun-Tao
关键词:Chlorinated paraffins; Quadrupole time-of-flight high-resolution mass spectrometry; Orbitrap high-resolution mass spectrometry; Gas chromatography; Liquid chromatography; Review
-
Mineral constituents of a prized edible mushroom (Tricholoma matsutake) and soils beneath the fruiting bodies from the production areas across China
作者:Xiong Chuan;Li Xiao-lin;Zheng Lin-yong;Li Shu-hong;Li Qiang;Huang Wen-li;Xiong Chuan;Zheng Lin-yong;Liu Cheng-yi
关键词:Fungi;Heavy metals;Mineral composition;Mushrooms;Wild food
-
Mineral constituents of a prized edible mushroom (Tricholoma matsutake) and soils beneath the fruiting bodies from the production areas across China
作者:Xiong Chuan;Li Xiao-lin;Zheng Lin-yong;Li Shu-hong;Li Qiang;Huang Wen-li;Xiong Chuan;Zheng Lin-yong;Liu Cheng-yi
关键词:Fungi; Heavy metals; Mineral composition; Mushrooms; Wild food
-
Annual variability of ichthyoplankton in the Yangtze River estuary of China from August 2002 to 2009
作者:Jiang Mei;Shen Xin-Qiang;Li Lei;Quan Wei-Min
关键词:ichthyoplankton;abundance;composition;August;Yangtze River estuary
-
Genetic Algorithm Applied to the Selection of Factors in Principal Component: ASQR study of Aromatic Hydrocarbons Toxicity to Chlorella vulgaris
作者:Yang Sheng-Long;Wang Cui-Hua;Wu Yang;Yu Hong-Xia;Wang Lian-Shen
关键词:PCR;Genetic Algorithm;aromatic hydrocarbons;Chlorella vulgaris