DOI: 10.1002/cmdc.201100179. From Activity Cliffs to Target‐Specific Scoring Models and Pharmacophore Hypotheses

From Activity Cliffs to Target‐Specific Scoring Models and Pharmacophore Hypotheses

10.1002/cmdc.201100179

Crossref journal-article

Wiley

ChemMedChem (311)

Abstract

AbstractThe role of activity cliffs in drug discovery projects is certainly two‐edged: on the one hand, they often lead to the failure of QSAR modeling techniques; on the other, they are highly valuable for identifying key aspects of SARs. In the presence of activity cliffs the results of purely ligand‐based QSAR approaches often remain puzzling, and the resulting models have limited predictive power. Herein we present a new approach for the identification of structure‐based activity cliffs (ISAC). It uses the valuable information of activity cliffs in a structure‐based design scenario by analyzing interaction energies of protein–ligand complexes. Using the relative frequency at which a protein atom is involved in activity cliff events, we introduce a novel visualization of hot spots in the active site of a protein. The ISAC approach supports the medicinal chemist in elucidating the key interacting atoms of the binding site and facilitates the development of pharmacophore hypotheses. The hot spot visualization can be applied to small data sets in early project phases as well as in the lead optimization process. Based on the ISAC approach, we developed a method to derive target‐specific scoring functions and pharmacophore constraints, which were validated on independent external data sets in virtual screening experiments. The activity‐cliff‐based approach shows an improved enrichment over the generic empirical scoring function for various protein targets in the validation set.

Bibliography

Seebeck, B., Wagener, M., & Rarey, M. (2011). From Activity Cliffs to TargetâSpecific Scoring Models and Pharmacophore Hypotheses. ChemMedChem, 6(9), 1630â1639. Portico.

Authors 3

Birte Seebeck (first)
Markus Wagener (additional)
Matthias Rarey (additional)

References 31 Referenced 43

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{'key': 'e_1_2_6_24_2', 'first-page': '63', 'volume-title': 'Virtual Screening: An Alternative or Complement to High‐Throughput Screening', 'author': 'Rarey M.'} / Virtual Screening: An Alternative or Complement to High‐Throughput Screening by Rarey M.
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Dates

Type	When
Created	14 years, 1 month ago (July 12, 2011, 4:16 p.m.)
Deposited	1 year, 10 months ago (Oct. 10, 2023, 3:15 p.m.)
Indexed	3 months, 1 week ago (May 16, 2025, 9:34 p.m.)
Issued	14 years, 1 month ago (July 12, 2011)
Published	14 years, 1 month ago (July 12, 2011)
Published Online	14 years, 1 month ago (July 12, 2011)
Published Print	13 years, 11 months ago (Sept. 5, 2011)

Funders 0

None

BibTeX

@article{Seebeck_2011, title={From Activity Cliffs to Target‐Specific Scoring Models and Pharmacophore Hypotheses}, volume={6}, ISSN={1860-7187}, url={http://dx.doi.org/10.1002/cmdc.201100179}, DOI={10.1002/cmdc.201100179}, number={9}, journal={ChemMedChem}, publisher={Wiley}, author={Seebeck, Birte and Wagener, Markus and Rarey, Matthias}, year={2011}, month=jul, pages={1630–1639} }

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