Cited by 108Trypanosoma species research and implicationsProtease and Inhibitor MechanismsEnzyme function and inhibition

Divergent modes of enzyme inhibition in a homologous structure-activity series.

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Ferreira, Rafaela S., Bryant, Clifford, Ang, Kenny K. H., McKerrow, James H., Shoichet, Brian K., Renslo, Adam R.·2009·Journal of Medicinal Chemistry

Abstract

A docking screen identified reversible, noncovalent inhibitors (e.g., 1) of the parasite cysteine protease cruzain. Chemical optimization of 1 led to a series of oxadiazoles possessing interpretable SAR and potencies as much as 500-fold greater than 1. Detailed investigation of the SAR series subsequently revealed that many members of the oxadiazole class (and surprisingly also 1) act via divergent modes of inhibition (competitive or via colloidal aggregation) depending on the assay conditions employed.

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  • Many factors such as inherent experimental error can be a source of inaccuracies, limiting the average prediction error achievable on large datasets.

    “Despite the efforts in collecting high-quality affinity data, many factors such as the inherent experimental error can be a source of inaccuracies, limiting the average prediction error achievable on large datasets (Shoichet, 2006; Ferreira et al., 2009; Sotriffer and Matter, 2011; Kramer et al., 2012).”

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  1. [20]Feng BY Shoichet BK A detergent-based assay for the detection of promiscuous inhibitors Nat Protoc 2006 1 2 550 3 17191086 PMC1544377

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Authors
Ferreira, R. S., Bryant, C., Ang, K. K. H., McKerrow, J. H., Shoichet, B. K., & Renslo, A. R.
Affiliations
University of California, San Francisco (US)
Corresponding author
  • Shoichet, Brian K.
  • Renslo, Adam R.
Venue
Journal of Medicinal Chemistry
Published
2009-07-28
Volume
52
Issue
16
Pages
5005-5008
ISSN
  • 0022-2623 (ISSN-L)
  • 1520-4804
OpenAlex
W2053550167
Cited by
88
References
24
Citations by year
2026: 1 · 2025: 1 · 2024: 4 · 2023: 4 · 2022: 4 · 2021: 3 · 2020: 3 · 2019: 7 · 2018: 2 · 2017: 13 · 2016: 5 · 2015: 10 · 2014: 3 · 2013: 10 · 2012: 4
FWCI
4.72
Type
journal article
Language
en
Open access
Locations
  • Journal of Medicinal Chemistry (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of General Medical Sciences (R01GM071630, GM71630)
Topics
  • Health Sciences › Medicine › Epidemiology › Trypanosoma species research and implications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Protease and Inhibitor Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Enzyme function and inhibition
Keywords
cruzain, cysteine protease, enzyme inhibition, oxadiazole, structure-activity relationship, competitive inhibition, colloidal aggregation
MeSH terms
Colloids, Cysteine Endopeptidases, Glycolates, Models, Molecular, Oxadiazoles, Structure-Activity Relationship, Trypanocidal Agents, Trypanosoma cruzi, Protozoan Proteins, Cysteine Proteinase Inhibitors, Databases, Factual, Parasitic Sensitivity Tests

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