Abstract:
:From currently available kinase inhibitors and their activity data, clusters of coordinated activity cliffs were systematically derived and subjected to cluster index and index map analysis. Type I-like inhibitors with well-defined IC50 measurements were found to provide a large knowledge base of activity cliff clusters for 266 targets from nine kinase groups. On the basis of index map analysis, these clusters were systematically organized according to structural similarity of inhibitors and activity cliff diversity and prioritized for structure-activity relationship (SAR) analysis. From prioritized clusters, interpretable SAR information can be extracted. It is also shown that activity cliff clusters formed by ATP site-directed inhibitors often represent local SAR environments of rather different complexity and interpretability. In addition, activity cliff clusters including promiscuous kinase inhibitors have been determined. Only a small subset of inhibitors was found to change activity cliff roles in different clusters. The activity cliff clusters described herein and their index map organization substantially enrich SAR information associated with kinase inhibitors in compound subsets of limited size. The cluster and index map information is made available upon request to provide opportunities for further SAR exploration. On the basis of our analysis and the data provided, activity cliff clusters and corresponding inhibitor series for kinase targets of interest can be readily selected.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Dimova D,Stumpfe D,Bajorath Jdoi
10.1016/j.ejmech.2014.11.058subject
Has Abstractpub_date
2015-01-27 00:00:00pages
414-27eissn
0223-5234issn
1768-3254pii
S0223-5234(14)01100-3journal_volume
90pub_type
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