Further development of reduced graphs for identifying bioactive compounds.
Reduced graphs provide summary representations of chemical structures. Here, a variety of different types of reduced graphs are compared in similarity searches. The reduced graphs are found to give comparable performance to Daylight fingerprints in terms of the number of active compounds retrieved. However, no one type of reduced graph is found to be consistently superior across a variety of different data sets. Consequently, a representative set of reduced graphs was chosen and used together with Daylight fingerprints in data fusion experiments. The results show improved performance in 10 out of 11 data sets compared to using Daylight fingerprints alone. Finally, the potential of using reduced graphs to build SAR models is demonstrated using recursive partitioning. An SAR model consistent with a published model is found following just two splits in the decision tree.
Barker
Edward J
EJ
Department of Information Studies and Krebs Institute for Biomolecular Research, University of Sheffield, Western Bank, Sheffield S10 2TN, United Kingdom.
Gardiner
Eleanor J
EJ
Gillet
Valerie J
VJ
Kitts
Paula
P
Morris
Jeff
J
D003626:Data Display; D015195:Drug Design; D019451:Information Management; D015394:Molecular Structure; D004364:Pharmaceutical Preparations / Q000737:chemistry*; D010600:Pharmacology / Q000379:methods*; D013329:Structure-Activity Relationship
D004364:Pharmaceutical Preparations