Retinoid X receptor: Difference between revisions

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== Function ==     
== Function ==     
'''Retinoid X receptor''' (RXR) is a [[Nuclear receptors|nuclear receptor]] activated by 9-''cis'' retinoic acid.  RXR makes a heterodimer with subfamily 1 nuclear receptors including retinoic acid receptor (RAR). In the absence of ligand, the RAR/RXR complex binds the hormone response elements complexed with corepressor protein.  Upon binding of the ligand, the corepressor disassociates from the receptor and associates with the coactivator leading to transcription activation.  RXR contains a DNA-binding domain (DBD) and ligand-binding domain (LBD)<ref>PMID:22020178</ref>.  For additional details on RXR-α see [[RA Mediated T-reg Differentiation]].
'''Retinoid X receptor''' (RXR) is a [[Nuclear receptors|nuclear receptor]] activated by 9-''cis'' retinoic acid.  RXR makes a heterodimer with subfamily 1 nuclear receptors including [[Retinoic acid receptor|retinoic acid receptor]] (RAR). In the absence of ligand, the RAR/RXR complex binds the hormone response elements complexed with corepressor protein.  Upon binding of the ligand, the corepressor disassociates from the receptor and associates with the coactivator leading to transcription activation.  RXR contains a DNA-binding domain (DBD) and ligand-binding domain (LBD)<ref>PMID:22020178</ref>.  For additional details on RXR-α see [[RA Mediated T-reg Differentiation]].
 
See also [[Intracellular receptors]]


There are 3 classes of RXR: α, β and γ.  <br />
There are 3 classes of RXR: α, β and γ.  <br />
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== Structural highlights ==
== Structural highlights ==
<scene name='51/516465/Cv/4'>9-''cis'' retinoid acid binds to RXRα LBD in a hydrophobic pocket</scene>. {{Template:ColorKey_Hydrophobic}},  {{Template:ColorKey_Polar}}. Water molecules are shown as red spheres. <scene name='51/516465/Cv/5'>9-''cis'' retinoid acid is in a hydrophobic pocket</scene>. The ligand-binding residues are conserved in the 3 classes of RXR
<scene name='51/516465/Cv/4'>9-cis retinoid acid binds to RXRα LBD in a hydrophobic pocket</scene>. {{Template:ColorKey_Hydrophobic}},  {{Template:ColorKey_Polar}}. Water molecules are shown as red spheres. <scene name='51/516465/Cv/5'>9-cis retinoid acid is in a hydrophobic pocket</scene>. The ligand-binding residues are conserved in the 3 classes of RXR
<ref>PMID:10835357</ref>.
<ref>PMID:10835357</ref>.
==3D structures of retinoid X receptor==
==3D structures of retinoid X receptor==

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky, Joel L. Sussman