3G0W

Crystal structure of the rat androgen receptor ligand binding domain complex with an n-aryl-oxazolidin 2-imine inhibitor

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.201 

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Literature

N-aryl-oxazolidin-2-imine muscle selective androgen receptor modulators enhance potency through pharmacophore reorientation.

Nirschl, A.A., Zou, Y., Krystek, S.R., Sutton, J.C., Simpkins, L.M., Lupisella, J.A., Kuhns, J.E., Seethala, R., Golla, R., Sleph, P.G., Beehler, B.C., Grover, G.J., Egan, D., Fura, A., Vyas, V.P., Li, Y.X., Sack, J.S., Kish, K.F., An, Y., Bryson, J.A., Gougoutas, J.Z., DiMarco, J., Zahler, R., Ostrowski, J., Hamann, L.G.

(2009) J Med Chem 52: 2794-2798

  • DOI: https://doi.org/10.1021/jm801583j
  • Primary Citation of Related Structures:  
    3G0W

  • PubMed Abstract: 

    • A novel selective androgen receptor modulator (SARM) scaffold was discovered as a byproduct obtained during synthesis of our earlier series of imidazolidin-2-ones. The resulting oxazolidin-2-imines are among the most potent SARMs known, with many analogues exhibiting sub-nM in vitro potency in binding and functional assays ...

    A novel selective androgen receptor modulator (SARM) scaffold was discovered as a byproduct obtained during synthesis of our earlier series of imidazolidin-2-ones. The resulting oxazolidin-2-imines are among the most potent SARMs known, with many analogues exhibiting sub-nM in vitro potency in binding and functional assays. Despite the potential for hydrolytic instability at gut pH, compounds of the present class showed good oral bioavailability and were highly active in a standard rodent pharmacological model.

    Organizational Affiliation: 

    Discovery Chemistry, Analytical Research & Development, Bristol-Myers Squibb Research and Development, P.O. Box 5400, Princeton, New Jersey 08543-5400, USA.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Androgen receptorA260Rattus norvegicusMutation(s): 0 
Gene Names: Ar, Nr3c4
UniProt
Find proteins for P15207 (Rattus norvegicus)
Explore P15207 
Go to UniProtKB:  P15207
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP15207
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
LGB
Query on LGB
Download Ideal Coordinates CCD File 
B [auth A]2-chloro-4-{[(1R,3Z,7S,7aS)-7-hydroxy-1-(trifluoromethyl)tetrahydro-1H-pyrrolo[1,2-c][1,3]oxazol-3-ylidene]amino}-3-met hylbenzonitrile
C15 H13 Cl F3 N3 O2
KALFKWQLCWAXJO-RNSKTZJQSA-N		 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
LGB PDBBind:  3G0W Ki: 0.3 (nM) from 1 assay(s)
BindingDB:  3G0W Ki: 0.3 (nM) from 1 assay(s)
EC50: 0.2 (nM) from 1 assay(s)
Binding MOAD:  3G0W Ki: 0.3 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.201 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 54.862α = 90
b = 65.739β = 90
c = 69.75γ = 90
Software Package:
Software NamePurpose
AMoREphasing
BUSTER-TNTrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Ligand Structure Quality Assessment 


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Entry History 

Deposition Data

  • Released Date: 2009-04-28 
    • Deposition Author(s): Sack, J.S.

Revision History  (Full details and data files)

  • Version 1.0: 2009-04-28
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance