Cited by 223Computational Drug Discovery MethodsChemical Synthesis and AnalysisReceptor Mechanisms and Signaling

Ligand efficiency and fragment-based drug discovery

Bembenek, Scott D., Tounge, Brett A., Reynolds, Charles H.·2009·Drug Discovery Today

Abstract

The use of fragment-based drug discovery (FBDD) has increased in recent years since it is more likely to produce a better optimized compound of lower molecular weight. Ligand efficiency (LE) has become important for assessing fragments, HTS hits, and resulting optimized ligands. LE is useful for comparing ligands of equal molecular weight, but is ineffective for comparisons of ligands of differing molecular weight. LE has a strong dependence on molecular size, which has led us to develop a size-independent efficiency score termed fit quality. Evaluating FBDD examples from the literature using LE and fit quality, we find that, in general, the LEs of starting fragments are greater than those of larger, more elaborated, structures. Fit quality scores, however, tend to improve upon optimization of the fragments.

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Crossref · 10.1016/j.drudis.2008.11.007

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  • Fragment-based ligand discovery (FBLD) has emerged as a versatile approach for the discovery of atom-efficient, small-molecule binders for a wide range of proteins.

    “Fragment-based ligand discovery (FBLD) has emerged as a versatile approach for the discovery of atom-efficient, small-molecule binders for a wide range of proteins10–12.”

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Authors
Bembenek, S. D., Tounge, B. A., & Reynolds, C. H.
Affiliations
Janssen Research & Development (United States) (US)
Corresponding author
Bembenek, Scott D.
Venue
Drug Discovery Today
Publisher
Elsevier BV
Published
2009-03
Volume
14
Issue
5-6
Pages
278-283
ISSN
1359-6446 (ISSN-L)
OpenAlex
W2086070714
Cited by
196
References
23
Citations by year
2026: 8 · 2025: 7 · 2024: 8 · 2023: 6 · 2022: 4 · 2021: 13 · 2020: 2 · 2019: 12 · 2018: 8 · 2017: 10 · 2016: 12 · 2015: 13 · 2014: 15 · 2013: 15 · 2012: 19
FWCI
21.88
Type
journal article
Language
en
Open access
closed
Locations
  • Drug Discovery Today (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Computer Science › Computational Theory and Mathematics › Computational Drug Discovery Methods
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chemical Synthesis and Analysis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
Keywords
ligand efficiency, fragment-based drug discovery, molecular weight, fragment optimization, hit-to-lead optimization, molecular size dependence
MeSH terms
Humans, Ligands, Molecular Weight, Protein Binding, Drug Delivery Systems, Small Molecule Libraries, Drug Discovery

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