Crystal structure of RAR-related orphan receptor C in complex with a phenyl (3-phenylpyrrolidin-3-yl)sulfone inhibitor

Experimental Data Snapshot

  • Resolution: 2.29 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.246 
  • R-Value Observed: 0.248 

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Structure-based Discovery of Phenyl (3-Phenylpyrrolidin-3-yl)sulfones as Selective, Orally Active ROR gamma t Inverse Agonists.

Duan, J.J.Lu, Z.Jiang, B.Stachura, S.Weigelt, C.A.Sack, J.S.Khan, J.Ruzanov, M.Galella, M.A.Wu, D.R.Yarde, M.Shen, D.R.Shuster, D.J.Borowski, V.Xie, J.H.Zhang, L.Vanteru, S.Gupta, A.K.Mathur, A.Zhao, Q.Foster, W.Salter-Cid, L.M.Carter, P.H.Dhar, T.G.M.

(2019) ACS Med Chem Lett 10: 367-373

  • DOI: https://doi.org/10.1021/acsmedchemlett.9b00010
  • Primary Citation of Related Structures:  
    6NX1, 6O98

  • PubMed Abstract: 

    A new phenyl (3-phenylpyrrolidin-3-yl)sulfone series of RORγt inverse agonists was discovered utilizing the binding conformation of previously reported bicyclic sulfonamide 1 . Through a combination of structure-based design and structure-activity relationship studies, a polar set of amides at N 1-position of the pyrrolidine ring and perfluoroisopropyl group at para -position of the 3-phenyl group were identified as critical structural elements to achieve high selectivity against PXR, LXRα, and LXRβ. Further optimization led to the discovery of (1 R ,4r)-4-(( R )-3-((4-fluorophenyl)sulfonyl)-3-(4-(perfluoropropan-2-yl)phenyl)pyrrolidine-1-carbonyl)cyclohexane-1-carboxylic acid ( 26 ), which displayed excellent selectivity, desirable liability and pharmacokinetic properties in vitro , and a good pharmacokinetic profile in mouse. Oral administration of 26 demonstrated dose-dependent inhibition of IL-17 production in a mouse IL-2/IL-23-induced pharmacodynamic model and biologic-like efficacy in an IL-23-induced mouse acanthosis model.

  • Organizational Affiliation

    Bristol-Myers Squibb-Biocon Research Center, Bangalore 560099, India.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Nuclear receptor ROR-gamma
A, B
265Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P51449 (Homo sapiens)
Explore P51449 
Go to UniProtKB:  P51449
PHAROS:  P51449
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP51449
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on L8A

Download Ideal Coordinates CCD File 
C [auth A],
D [auth B]
C26 H26 F7 N3 O5 S
Binding Affinity Annotations 
IDSourceBinding Affinity
L8A BindingDB:  6O98 IC50: 44 (nM) from 1 assay(s)
EC50: 55 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 2.29 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.246 
  • R-Value Observed: 0.248 
  • Space Group: P 61
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 97.78α = 90
b = 97.78β = 90
c = 126.28γ = 120
Software Package:
Software NamePurpose
XDSdata reduction
SCALAdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

  • Released Date: 2019-03-20 
  • Deposition Author(s): Sack, J.S.
  • This entry supersedes: 6NXH

Revision History  (Full details and data files)

  • Version 1.0: 2019-03-20
    Type: Initial release
  • Version 1.1: 2019-04-03
    Changes: Data collection, Database references
  • Version 1.2: 2023-10-11
    Changes: Data collection, Database references, Refinement description