Cited by 94Estrogen and related hormone effectsChemical Synthesis and AnalysisProtein Structure and Dynamics

Novel Selective Inhibitors of the Interaction of Individual Nuclear Hormone Receptors with a Mutually Shared Steroid Receptor Coactivator 2

Geistlinger, Timothy R., Guy, R. Kiplin·2003·Journal of the American Chemical Society

Abstract

Nuclear hormone receptor (NR) signaling, currently a therapeutic target in multiple diseases, involves an ordered series of protein interactions to regulate transcription in response to changing hormone levels. Later steps in the process of ligand-dependent signaling are driven by a highly conserved interaction between the NRs and the steroid receptor coactivators (SRCs) that is effected by a conserved interaction motif (L1XXL2L3), known as an NR box. Using computational design and combinatorial chemistry, we have produced novel alpha-helical proteomimetics of the second NR box of SRC2 that exploit structural differences between human estrogen receptor alpha (hERalpha), human estrogen receptor beta (hERbeta), and human thyroid hormone receptor beta (hTRbeta). The resulting library sequentially replaced each leucine with non-natural side chains. Screening this library using a quantitative competition assay revealed compounds that selectively inhibit the interaction of SRC2-2 with each individual NR in preference to its interaction with the other NR. This approach generated highly selective compounds from one that had no specificity for a particular family member. These compounds represent the first family-member-selective competitive inhibitors of the protein interactions of transcription factors.

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Crossref · 10.1021/ja0348391

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4 of 4 references verified0 citation errors · 0 not checkable

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Authors
Geistlinger, T. R., & Guy, R. K.
Affiliations
  • Departments of Pharmaceutical Chemistry and Cellular and Molecular Pharmacology, University of California at San Francisco, Genentech Hall, Mission Bay, 600 16th Street 2280, San Francisco, California 94143-2280
  • University of California, San Francisco (US)
Venue
Journal of the American Chemical Society
Published
2003-05-16
Volume
125
Issue
23
Pages
6852-6853
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2037743832
Cited by
94
References
4
Citations by year
2026: 1 · 2025: 1 · 2024: 3 · 2023: 2 · 2020: 2 · 2019: 5 · 2018: 4 · 2017: 1 · 2016: 3 · 2015: 8 · 2014: 8 · 2013: 2 · 2012: 8
FWCI
3.52
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of the American Chemical Society (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Diabetes and Digestive and Kidney Diseases (R01DK058080, R01 DK58080)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chemical Synthesis and Analysis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
Keywords
nuclear receptors, SRC-2, protein-protein interaction inhibitors, estrogen receptor alpha, estrogen receptor beta, thyroid hormone receptor beta, combinatorial chemistry, competitive binding assay, transcriptional coactivator, ligand-dependent signaling
MeSH terms
Peptides, Receptors, Estrogen, Receptors, Thyroid Hormone, Transcription Factors, Thyroid Hormone Receptors beta, Biomimetic Materials, Estrogen Receptor alpha, Nuclear Receptor Coactivator 2

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