期刊
MOLECULAR INFORMATICS
卷 29, 期 6-7, 页码 476-488出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/minf.201000061
关键词
QSAR modeling; Model validation; Virtual screening; Drug discovery
类别
资金
- National Cancer Institute NIH [R01GM066940]
After nearly five decades in the making, QSAR modeling has established itself as one of the major computational molecular modeling methodologies. As any mature research discipline, QSAR modeling can be characterized by a collection of well defined protocols and procedures that enable the expert application of the method for exploring and exploiting ever growing collections of biologically active chemical compounds. This review examines most critical QSAR modeling routines that we regard as best practices in the field. We discuss these procedures in the context of integrative predictive QSAR modeling workflow that is focused on achieving models of the highest statistical rigor and external predictive power. Specific elements of the workflow consist of data preparation including chemical structure (and when possible, associated biological data) curation, outlier detection, dataset balancing, and model validation. We especially emphasize procedures used to validate models, both internally and externally, as well as the need to define model applicability domains that should be used when models are employed for the prediction of external compounds or compound libraries. Finally, we present several examples of successful applications of QSAR models for virtual screening to identify experimentally confirmed hits.
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