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 

wwPDB Validation   3D Report Full Report


This is version 1.1 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: 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 s ...

    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.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Mineralocorticoid receptor A, B, C257Homo sapiensMutation(s): 1 
Gene Names: NR3C2, MCR, MLR
Find proteins for P08235 (Homo sapiens)
Explore P08235 
Go to UniProtKB:  P08235
NIH Common Fund Data Resources
PHAROS:  P08235
GTEx:  ENSG00000151623
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
60R
Query on 60R
Download Ideal Coordinates CCD File 
A, B, C
6-[(~{E})-(3-fluoranyl-6~{H}-benzo[c][1]benzoxepin-11-ylidene)methyl]-4~{H}-1,4-benzoxazin-3-one
C23 H16 F N O3
IGQHIUNZKLGBMZ-DJKKODMXSA-N		 Ligand Interaction
CL
Query on CL
Download Ideal Coordinates CCD File 
B
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M		 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
60RKi:  2   nM  Binding MOAD
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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View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-03-09
    Type: Initial release
  • Version 1.1: 2017-08-09
    Changes: Derived calculations