Metabolism Site Prediction Based on Xenobiotic Structural Formulas and PASS Prediction Algorithm

详细信息    查看全文

• 作者：Anastasia V. Rudik ; Alexander V. Dmitriev ; Alexey A. Lagunin ; Dmitry A. Filimonov ; Vladimir V. Poroikov
• 刊名：Journal of Chemical Information and Modeling
• 出版年：2014
• 出版时间：February 24, 2014
• 年：2014
• 卷：54
• 期：2
• 页码：498-507
• 全文大小：465K
• 年卷期：v.54,no.2(February 24, 2014)
• ISSN：1549-960X

文摘

A new ligand-based method for the prediction of sites of metabolism (SOMs) for xenobiotics has been developed on the basis of the LMNA (labeled multilevel neighborhoods of atom) descriptors and the PASS (prediction of activity spectra for substances) algorithm and applied to predict the SOMs of the 1A2, 2C9, 2C19, 2D6, and 3A4 isoforms of cytochrome P450. An average IAP (invariant accuracy of prediction) of SOMs calculated by the leave-one-out cross-validation procedure was 0.89 for the developed method. The external validation was made with evaluation sets containing data on biotransformations for 57 cardiovascular drugs. An average IAP of regioselectivity for evaluation sets was 0.83. It was shown that the proposed method exceeds accuracy of SOM prediction by RS-Predictor for CYP 1A2, 2D6, 2C9, 2C19, and 3A4 and is comparable to or better than SMARTCyp for CYP 2C9 and 2D6.