5HCV

Identification of Spirooxindole and Dibenzoxazepine Motifs as Potent Mineralocorticoid Receptor Antagonists


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.170 
  • R-Value Observed: 0.174 

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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Identification of spirooxindole and dibenzoxazepine motifs as potent mineralocorticoid receptor antagonists.

Lotesta, S.D.Marcus, A.P.Zheng, Y.Leftheris, K.Noto, P.B.Meng, S.Kandpal, G.Chen, G.Zhou, J.McKeever, B.Bukhtiyarov, Y.Zhao, Y.Lala, D.S.Singh, S.B.McGeehan, G.M.

(2016) Bioorg Med Chem 24: 1384-1391

  • DOI: https://doi.org/10.1016/j.bmc.2016.02.014
  • Primary Citation of Related Structures:  
    5HCV

  • PubMed Abstract: 

    Mineralocorticoid receptor (MR) antagonists continue to be a prevalent area of research in the pharmaceutical industry. Herein we report the discovery of various spirooxindole and dibenzoxazepine constructs as potent MR antagonists. SAR analysis of our spirooxindole hit led to highly potent compounds containing polar solubilizing groups, which interact with the helix-11 region of the MR ligand binding domain (LBD). Various dibenzoxazepine moieties were also prepared in an effort to replace a known dibenzoxepane system which interacts with the hydrophobic region of the MR LBD. In addition, an X-ray crystal structure was obtained from a highly potent compound which was shown to exhibit both partial agonist and antagonist modes of action against MR.


  • Organizational Affiliation

    Vitae Pharmaceuticals, 502 West Office Center Drive, Fort Washington, PA 19034, United States. Electronic address: slotesta@vitaerx.com.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Mineralocorticoid receptor
A, B, C
257Homo sapiensMutation(s): 1 
Gene Names: NR3C2MCRMLR
UniProt & NIH Common Fund Data Resources
Find proteins for P08235 (Homo sapiens)
Explore P08235 
Go to UniProtKB:  P08235
PHAROS:  P08235
GTEx:  ENSG00000151623 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP08235
Sequence Annotations
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  • Reference Sequence
Small Molecules
Binding Affinity Annotations 
IDSourceBinding Affinity
60R Binding MOAD:  5HCV Ki: 2 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.170 
  • R-Value Observed: 0.174 
  • Space Group: P 31
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 121.501α = 90
b = 121.501β = 90
c = 44.406γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
SCALEPACKdata scaling
MOLREPphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-03-09
    Type: Initial release
  • Version 1.1: 2017-08-09
    Changes: Derived calculations
  • Version 1.2: 2023-09-27
    Changes: Data collection, Database references, Refinement description