Outliers in SAR and QSAR: What are the possible sources?

COMP 11

Ki H. Kim, pkhkim@gmail.com, Hope Drug Discovery Research Laboratory, 260 Southgate Drive, Vernon Hills, IL 60061
Structure-activity relationship (SAR) or quantitative structure-activity relationship (QSAR) studies play an important role in a lead optimization in drug discovery research. Outliers are often observed in SAR or QSAR studies. However, the reasons for such outliers are often speculated, and the sources of these outliers are often unclear. Here, we discuss some possible sources of such outliers in SAR or QSAR and suggest that some of the outliers are expected in some cases.