Benchmarking methods and data sets for ligand enrichment assessment in virtual screening.
Benchmarking methods and data sets for ligand enrichment assessment in virtual screening.
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DOI:
10.1016/j.ymeth.2014.11.015
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发表时间:
2015-01
期刊:
影响因子:
4.8
通讯作者:
Wang, Xiang Simon
中科院分区:
文献类型:
--
作者:
Xia, Jie;Tilahun, Ermias Lemma;Reid, Terry-Elinor;Zhang, Liangren;Wang, Xiang Simon
关键词:
Retrospective small-scale virtual screening (VS) based on benchmarking data sets has been widely used to estimate ligand enrichments of VS approaches in the prospective (i.e. real-world) efforts. However, the intrinsic differences of benchmarking sets to the real screening chemical libraries can cause biased assessment. Herein, we summarize the history of benchmarking methods as well as data sets and highlight three main types of biases found in benchmarking sets, i.e. “analogue bias”, “artificial enrichment” and “false negative”. In addition, we introduced our recent algorithm to build maximum-unbiased benchmarking sets applicable to both ligand-based and structure-based VS approaches, and its implementations to three important human histone deacetylase (HDAC) isoforms, i.e. HDAC1, HDAC6 and HDAC8. The Leave-One-Out Cross-Validation (LOO CV) demonstrates that the benchmarking sets built by our algorithm are maximum-unbiased in terms of property matching, ROC curves and AUCs.
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