5UFW

Estrogen Receptor Alpha Ligand Binding Domain in Complex with OP1154


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.583 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.180 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Specific stereochemistry of OP-1074 disrupts estrogen receptor alpha helix 12 and confers pure antiestrogenic activity.

Fanning, S.W.Hodges-Gallagher, L.Myles, D.C.Sun, R.Fowler, C.E.Plant, I.N.Green, B.D.Harmon, C.L.Greene, G.L.Kushner, P.J.

(2018) Nat Commun 9: 2368-2368

  • DOI: 10.1038/s41467-018-04413-3
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Complex tissue-specific and cell-specific signaling by the estrogen receptor (ER) frequently leads to the development of resistance to endocrine therapy for breast cancer. Pure ER antagonists, which completely lack tissue-specific agonist activity, h ...

    Complex tissue-specific and cell-specific signaling by the estrogen receptor (ER) frequently leads to the development of resistance to endocrine therapy for breast cancer. Pure ER antagonists, which completely lack tissue-specific agonist activity, hold promise for preventing and treating endocrine resistance, however an absence of structural information hinders the development of novel candidates. Here we synthesize a small panel of benzopyrans with variable side chains to identify pure antiestrogens in a uterotrophic assay. We identify OP-1074 as a pure antiestrogen and a selective ER degrader (PA-SERD) that is efficacious in shrinking tumors in a tamoxifen-resistant xenograft model. Biochemical and crystal structure analyses reveal a structure activity relationship implicating the importance of a stereospecific methyl on the pyrrolidine side chain of OP-1074, particularly on helix 12.


    Organizational Affiliation

    Institut für Medizinische und Pharmazeutische Chemie, Technische Universität Braunschweig, Braunschweig, Germany.,Rheumatology Unit, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.,Department of Chemistry, Université de Montréal, Montréal, QC, H3C 3J7, Canada.,Center of Pharmaceutical Engeneering (PVZ), Technische Universität Braunschweig, Braunschweig, Germany.,Ben May Department for Cancer Research, University of Chicago, Chicago, IL, 60637, USA. sfanning@uchicago.edu.,Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou University, Zhengzhou 450001, China.,Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104-6059, USA.,Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China.,College of Life Sciences, Peking University, Beijing 100871, China.,Université de Lorraine, LERMAB, Nancy, France.,Olema Pharmaceuticals, San Francisco, CA, 94107, USA.,Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, QC, H3C 3J7, Canada.,Université de Lorraine, CNRS, CRM2, Nancy, France. claude.didierjean@univ-lorraine.fr.,Science for Life Laboratory, Department of Medicine Solna, Karolinska Institutet, Sweden; Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden.,Structural Genomics Consortium, Nuffield Department of Medicine, Oxford University, Oxford, United Kingdom.,College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China.,Innovation Center for Structural Biology, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China.,DISFARM, Dipartimento di Scienze Farmaceutiche, Sezione Chimica Generale e Organica, Università degli Studi, Milano, Italy.,Université de Lorraine, INRA, IAM, Nancy, France.,Rheumatology Unit, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden; Science for Life Laboratory, Department of Medicine Solna, Karolinska Institutet, Sweden; Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden.,Max-Planck Institute for Plant Breeding Research, 50829 Cologne, Germany.,Institute of Biochemistry, University of Cologne, 50674 Koeln, Germany.,Department of Medical Sciences, Rheumatology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden.,Université de Lorraine, CNRS, CRM2, Nancy, France.,Biochemistry, Cellular, and Molecular Biology, University of Tennessee, Knoxville, Tennessee 37996, USA.,Institute for Pharmaceutical Chemistry, Structural Genomics Consortium and Buchmann Institute for Molecular Life Sciences, Johann Wolfgang Goethe-University, Frankfurt am Main, Germany.,Université de Lorraine, INRA, IAM, Nancy, France. eric.gelhaye@univ-lorraine.fr.,Ben May Department for Cancer Research, University of Chicago, Chicago, IL, 60637, USA.,ManRos Therapeutics, Hôtel de Recherche, Centre de Perharidy, Roscoff, France.,Olema Pharmaceuticals, San Francisco, CA, 94107, USA. leslie@olemapharma.com.,Department of Systems Biology, Harvard Medical School, Boston, MA, 02115, USA.,Pfizer Worldwide Research & Development , 610 Main Street, Cambridge, Massachusetts 02139, United States.,Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, QC, H3C 3J7, Canada. john.pascal@umontreal.ca.,Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104-6059, USA. blackbe@pennmedicine.upenn.edu.,Tetramer Core, BRI at Virginia Mason, Seattle, WA, USA.,Translational Research Program, BRI at Virginia Mason, Seattle, WA, USA.,Rheumatology Unit, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden. Electronic address: Vivianne.malmstrom@ki.se.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Estrogen receptor
A, B
249Homo sapiensMutation(s): 4 
Gene Names: ESR1 (ESR, NR3A1)
Find proteins for P03372 (Homo sapiens)
Go to Gene View: ESR1
Go to UniProtKB:  P03372
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
86V
Query on 86V

Download SDF File 
Download CCD File 
A, B
(2S)-3-(4-hydroxyphenyl)-4-methyl-2-(4-{2-[(3S)-3-methylpyrrolidin-1-yl]ethoxy}phenyl)-2H-1-benzopyran-7-ol
C29 H31 N O4
KDVXAPCZVZMPMU-SLQAJWMNSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.583 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.180 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 102.569α = 90.00
b = 57.878β = 102.91
c = 87.701γ = 90.00
Software Package:
Software NamePurpose
PHENIXdata scaling
PHENIXrefinement
PHENIXphasing
PHENIXdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Susan G. Komen FoundationUnited StatesPDF14301382
Ludwig Fund for Metastasis ResearchUnited States--

Revision History 

  • Version 1.0: 2018-01-10
    Type: Initial release
  • Version 1.1: 2018-06-27
    Type: Data collection, Database references