6S5K

LXRbeta ligand binding domain in complex with small molecule inhibitors

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.180 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history. 


Literature

Structural analysis identifies an escape route from the adverse lipogenic effects of liver X receptor ligands.

Belorusova, A.Y., Evertsson, E., Hovdal, D., Sandmark, J., Bratt, E., Maxvall, I., Schulman, I.G., Akerblad, P., Lindstedt, E.L.

(2019) Commun Biol 2: 431-431

  • DOI: 10.1038/s42003-019-0675-0
  • Primary Citation of Related Structures:  
    6S4T, 6S4U, 6S4N, 6S5K

  • PubMed Abstract: 

    • Liver X receptors (LXRs) are attractive drug targets for cardiovascular disease treatment due to their role in regulating cholesterol homeostasis and immunity. The anti-atherogenic properties of LXRs have prompted development of synthetic ligands, but these cause major adverse effects-such as increased lipogenesis-which are challenging to dissect from their beneficial activities ...

    Liver X receptors (LXRs) are attractive drug targets for cardiovascular disease treatment due to their role in regulating cholesterol homeostasis and immunity. The anti-atherogenic properties of LXRs have prompted development of synthetic ligands, but these cause major adverse effects-such as increased lipogenesis-which are challenging to dissect from their beneficial activities. Here we show that LXR compounds displaying diverse functional responses in animal models induce distinct receptor conformations. Combination of hydrogen/deuterium exchange mass spectrometry and multivariate analysis allowed identification of LXR regions differentially correlating with anti-atherogenic and lipogenic activities of ligands. We show that lipogenic compounds stabilize active states of LXRα and LXRβ while the anti-atherogenic expression of the cholesterol transporter ABCA1 is associated with the ligand-induced stabilization of LXRα helix 3. Our data indicates that avoiding ligand interaction with the activation helix 12 while engaging helix 3 may provide directions for development of ligands with improved therapeutic profiles.

    Organizational Affiliation: 

    8Early Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Oxysterols receptor LXR-beta A245Homo sapiensMutation(s): 0 
Gene Names: NR1H2, LXRB, NER, UNR
Find proteins for P55055 (Homo sapiens)
Explore P55055 
Go to UniProtKB:  P55055
NIH Common Fund Data Resources
PHAROS:  P55055
GTEx:  ENSG00000131408
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
KWE
Query on KWE
Download Ideal Coordinates CCD File 
A
3-(4-phenylbutylamino)-1,4-bis(phenylmethyl)pyrrole-2,5-dione
C28 H28 N2 O2
QPFLANLQMKUFTC-UHFFFAOYSA-N		 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
KWEKi:  790   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.180 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 58.728α = 90
b = 58.728β = 90
c = 148.026γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

  • Deposited Date: 2019-07-01 
  • Released Date: 2019-12-18 
    • Deposition Author(s): Petersen, J.

Revision History  (Full details and data files)

  • Version 1.0: 2019-12-18
    Type: Initial release