Cited by 30Protein Degradation and InhibitorsUbiquitin and proteasome pathwaysChemical Synthesis and Analysis

Unifying Catalysis Framework to Dissect Proteasomal Degradation Paradigms

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Rodriguez-Rivera, Frances P., Levi, Samuel M.·2021·ACS Central Science

Abstract

Diverging from traditional target inhibition, proteasomal protein degradation approaches have emerged as novel therapeutic modalities that embody distinct pharmacological profiles and can access previously undrugged targets. Small molecule degraders have the potential to catalytically destroy target proteins at substoichiometric concentrations, thus lowering administered doses and extending pharmacological effects. With this mechanistic premise, research efforts have advanced the development of small molecule degraders that benefit from stable and increased affinity ternary complexes. However, a holistic framework that evaluates different degradation modes from a catalytic perspective, including focusing on kinetically favored degradation mechanisms, is lacking. In this Outlook, we introduce the concept of an induced cooperativity spectrum as a unifying framework to mechanistically understand catalytic degradation profiles. This framework is bolstered by key examples of published molecular degraders extending from molecular glues to bivalent degraders. Critically, we discuss remaining challenges and future opportunities in drug discovery to rationally design and phenotypically screen for efficient degraders.

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Crossref · 10.1021/acscentsci.1c00389

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  • The degree of ternary complex formation may differ from substrate to substrate; a ternary complex that forms too efficiently and remains tightly bound will not lead to efficient degradation.

    “the degree of ternary complex formation may differ from substrate to substrate127; that is, a ternary complex that forms too efficiently and remains tightly bound will not lead to efficient degradation.”

    From PROTAC targeted protein degraders: the past is prologue (2022) · cites this paper as [127]

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Authors
Rodriguez-Rivera, F. P., & Levi, S. M.
Affiliations
  • Discovery Chemistry, Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
  • Pfizer (United States) (US)
Venue
ACS Central Science
Published
2021-06-16
Volume
7
Issue
7
Pages
1117-1125
ISSN
  • 2374-7943 (ISSN-L)
  • 2374-7951
OpenAlex
W3167795530
Cited by
30
References
109
Citations by year
2026: 2 · 2025: 11 · 2024: 3 · 2023: 4 · 2022: 9 · 2021: 1
FWCI
0.45
Type
journal article
Language
en
Open access
Locations
  • ACS Central Science (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Pfizer (S.M.L. is an employee of Pfizer, Inc.)
  • Merck (F.P.R.-R. is an employee of Merck & Co., Inc.)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Degradation and Inhibitors
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chemical Synthesis and Analysis
Keywords
small-molecule degraders, ternary complex stability, molecular glues, phenotypic screening

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