5LGA

Structural analysis and biological activities of BXL0124, a Gemini analog of Vitamin D


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.201 

Starting Model: experimental
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This is version 1.4 of the entry. See complete history


Literature

Structural analysis and biological activities of BXL0124, a gemini analog of vitamin D.

Belorusova, A.Y.Suh, N.Lee, H.J.So, J.Y.Maehr, H.Rochel, N.

(2017) J Steroid Biochem Mol Biol 173: 69-74

  • DOI: https://doi.org/10.1016/j.jsbmb.2016.09.015
  • Primary Citation of Related Structures:  
    5LGA

  • PubMed Abstract: 

    Gemini analogs of calcitriol, characterized by the extension of the C21-methyl group of calcitriol with a second chain, act as agonists of the vitamin D receptor (VDR). This second side chain of gemini is accommodated in a new cavity inside the VDR created by the structural rearrangement of the protein core. The resulting conformational change preserves the active state of the receptor and bestows gemini compounds with biological activities that exceed those of calcitriol. Of particular interest are gemini's anti-cancer properties, and in this study we demonstrate anti-proliferative and tumor-reducing abilities of BXL0124 and BXL0097, differing only by the presence or absence, respectively, of the methylene group on the A ring. BXL0124 acts as a more potent VDR agonist than its 19-nor counterpart by activating VDR-mediated transcription at lower concentrations. In a similar manner, BXL0124 is more active than BXL0097 in growth inhibition of breast cancer cells and reduction of tumor volume. Structural comparisons of BXL0097 and BXL0124, as their VDR complexes, explain the elevated activity of the latter.


  • Organizational Affiliation

    Department of Integrated Structural Biology, IGBMC (Institute of Genetics and of Molecular and Cellular Biology), 1 rue Laurent Fries, Illkirch, France; Centre National de la Recherche Scientifique (CNRS) UMR 7104, Illkirch, France; Institut National de la Santé et de la Recherche Médicale (INSERM) U964, Illkirch, France; Université de Strasbourg, Strasbourg, France.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Vitamin D3 receptor A300Danio rerioMutation(s): 0 
Gene Names: vdranr1i1avdr
UniProt
Find proteins for Q9PTN2 (Danio rerio)
Explore Q9PTN2 
Go to UniProtKB:  Q9PTN2
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9PTN2
Sequence Annotations
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  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
SRC-213Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q15596 (Homo sapiens)
Explore Q15596 
Go to UniProtKB:  Q15596
PHAROS:  Q15596
GTEx:  ENSG00000140396 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ15596
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
6VH
Query on 6VH

Download Ideal Coordinates CCD File 
C [auth A](1~{R},3~{S},5~{Z})-5-[2-[(1~{R},3~{a}~{S},7~{a}~{R})-7~{a}-methyl-1-[(6~{R})-1,1,1-tris(fluoranyl)-10-methyl-2,10-bis(oxidanyl)-2-(trifluoromethyl)undeca-3,8-diyn-6-yl]-2,3,3~{a},5,6,7-hexahydro-1~{H}-inden-4-ylidene]ethylidene]-4-methylidene-cyclohexane-1,3-diol
C32 H40 F6 O4
IOHHJACKQNKBKZ-GEJQTTJQSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.201 
  • Space Group: P 65 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 65.86α = 90
b = 65.86β = 90
c = 263.83γ = 120
Software Package:
Software NamePurpose
BUSTERrefinement
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
French National Research AgencyFranceANR-13-BSV8-0024-01

Revision History  (Full details and data files)

  • Version 1.0: 2016-10-19
    Type: Initial release
  • Version 1.1: 2017-09-06
    Changes: Advisory, Author supporting evidence
  • Version 1.2: 2017-09-20
    Changes: Database references
  • Version 1.3: 2021-02-24
    Changes: Derived calculations
  • Version 1.4: 2024-01-10
    Changes: Advisory, Data collection, Database references, Refinement description