New structural insights into the control of the retinoic acid receptors RAR/RXR by DNA, ligands, and transcriptional coregulators.

Tambones I Sagar A, Vankova P, Loginov D, Carivenc C, Rochel N, Bourguet W, Man P, Bernadó P, le Maire A, Nucleic Acids Res 53(18) (2025) Europe PMC

SASDXU2 – RAR/RXR heterodimer : BMS493 : NCoR NID : DR5 element

Retinoic acid receptor alpha
BMS493 (RAR inverse agonist ligand)
Retinoid X receptor alpha
Direct Repeat binding site with five-base-pair spacing
Nuclear receptor corepressor 1
MWexperimental 186 kDa
MWexpected 120 kDa
VPorod 363 nm3
log I(s) 7.97×10-3 7.97×10-4 7.97×10-5 7.97×10-6
Retinoic acid receptor alpha BMS493 (RAR inverse agonist ligand) Retinoid X receptor alpha Direct Repeat binding site with five-base-pair spacing Nuclear receptor corepressor 1 small angle scattering data  s, nm-1
ln I(s)
Retinoic acid receptor alpha BMS493 (RAR inverse agonist ligand) Retinoid X receptor alpha Direct Repeat binding site with five-base-pair spacing Nuclear receptor corepressor 1 Guinier plot ln 7.98×10-3 Rg: 5.7 nm 0 (5.7 nm)-2 s2
(sRg)2I(s)/I(0)
Retinoic acid receptor alpha BMS493 (RAR inverse agonist ligand) Retinoid X receptor alpha Direct Repeat binding site with five-base-pair spacing Nuclear receptor corepressor 1 Kratky plot 1.104 0 3 sRg
p(r)
Retinoic acid receptor alpha BMS493 (RAR inverse agonist ligand) Retinoid X receptor alpha Direct Repeat binding site with five-base-pair spacing Nuclear receptor corepressor 1 pair distance distribution function Rg: 6.1 nm 0 Dmax: 21.8 nm

Data validation


There are no models related to this curve.

Synchrotron SAXS data from solutions of RAR/RXR heterodimer : BMS493 : NCoR NID : DR5 element in 20 mM Tris HCl, 75 mM NaCl, 75 mM KCl, 2 mM CHAPS, 4 mM MgCl₂, 12 mM TCEP, pH 7.5 were collected on the SWING beam line at the SOLEIL storage ring (Saint-Aubin, France) using a Eiger 4M detector at a sample-detector distance of 2 m and at a wavelength of λ = 0.10332 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). In-line size-exclusion chromatography (SEC) SAS was employed. The SEC parameters were as follows: A 50.00 μl sample at 10 mg/ml was injected at a 0.20 ml/min flow rate onto a GE Superdex 200 Increase 10/300 column at 15°C. 2100 successive 1.990 second frames were collected. The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted.

Retinoic acid receptor alpha (RARα)
Mol. type   Protein
Organism   Mus musculus
Olig. state   Monomer
Mon. MW   39.2 kDa
 
UniProt   P11416 (82-421)
Sequence   FASTA
 
BMS493 (RAR inverse agonist ligand)
Mol. type   Other
Olig. state   Monomer
Mon. MW   0.4 kDa
Chemical formula
 
Retinoid X receptor alpha (RXRα)
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Monomer
Mon. MW   38.4 kDa
 
UniProt   P19793 (126-462)
Sequence   FASTA
 
Direct Repeat binding site with five-base-pair spacing (DR5)
Mol. type   DNA
Olig. state   Monomer
Mon. MW   13.0 kDa
Sequence   FASTA
 
Nuclear receptor corepressor 1 (NCoR NID)
Mol. type   Protein
Organism   Mus musculus
Olig. state   Monomer
Mon. MW   29.2 kDa
 
UniProt   Q60974 (2059-2325)
Sequence   FASTA