1R6G

Crystal structure of the thyroid hormone receptor beta ligand binding domain in complex with a beta selective compound


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.347 
  • R-Value Work: 0.261 
  • R-Value Observed: 0.265 

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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Thyroid receptor ligands. Part 2: Thyromimetics with improved selectivity for the thyroid hormone receptor beta.

Hangeland, J.J.Doweyko, A.M.Dejneka, T.Friends, T.J.Devasthale, P.Mellstrom, K.Sandberg, J.Grynfarb, M.Sack, J.S.Einspahr, H.Farnegardh, M.Husman, B.Ljunggren, J.Koehler, K.Sheppard, C.Malm, J.Ryono, D.E.

(2004) Bioorg Med Chem Lett 14: 3549-3553

  • DOI: 10.1016/j.bmcl.2004.04.032
  • Primary Citation of Related Structures:  
    1R6G

  • PubMed Abstract: 
  • A set of thyromimetics having improved selectivity for TR-beta1 were prepared by replacing the 3'-isopropyl group of 2 and 3 with substituents having increased steric bulk. From this limited SAR study, the most potent and selective compounds identified were derived from 2 and contained a 3'-phenyl moiety bearing small hydrophobic groups meta to the biphenyl link ...

    A set of thyromimetics having improved selectivity for TR-beta1 were prepared by replacing the 3'-isopropyl group of 2 and 3 with substituents having increased steric bulk. From this limited SAR study, the most potent and selective compounds identified were derived from 2 and contained a 3'-phenyl moiety bearing small hydrophobic groups meta to the biphenyl link. X-ray crystal data of 15c complexed with TR-beta1 LBD shows methionine 442 to be displaced by the bulky R3' phenyl ethyl amide side chain. Movement of this amino acid side chain provides an expanded pocket for the bulky side chain while the ligand-receptor complex retains full agonist activity.


    Organizational Affiliation

    Pharmaceutical Research Institute, Bristol-Myers Squibb, Princeton, NJ 08543, USA. jon.hangeland@bms.com



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Thyroid hormone receptor beta-1A259Homo sapiensMutation(s): 0 
Gene Names: THRBNR1A2ERBA2THR1
UniProt & NIH Common Fund Data Resources
Find proteins for P10828 (Homo sapiens)
Explore P10828 
Go to UniProtKB:  P10828
PHAROS:  P10828
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
442 (Subject of Investigation/LOI)
Query on 442

Download Ideal Coordinates CCD File 
B [auth A]2-[3,5-DIBROMO-4-(4-HYDROXY-3-{HYDROXY[(2-PHENYLETHYL)AMINO]METHYL}PHENOXY)PHENYL]ETHANE-1,1-DIOL
C23 H23 Br2 N O5
KIRQJXNQGZAKGR-UHFFFAOYSA-N
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
442 PDBBind:  1R6G IC50: 0.62 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.347 
  • R-Value Work: 0.261 
  • R-Value Observed: 0.265 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 68.556α = 90
b = 68.556β = 90
c = 129.17γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2005-02-15
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance