1osv: Difference between revisions

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[[Image:1osv.~~gif~~|left|200px]]

[[Image:1osv.png|left|200px]]

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~~'''~~STRUCTURAL BASIS FOR BILE ACID BINDING AND ACTIVATION OF THE NUCLEAR RECEPTOR FXR~~'''~~

===STRUCTURAL BASIS FOR BILE ACID BINDING AND ACTIVATION OF THE NUCLEAR RECEPTOR FXR===

~~==Overview==~~

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The ~~nuclear receptor FXR is the sensor of physiological levels of enterohepatic bile acids~~, the ~~end products of cholesterol catabolism. Here we report crystal structures of~~ the ~~FXR ligand binding domain in complex with coactivator peptide and two different bile acids~~. ~~An unusual A/B ring juncture, a feature associated with bile acids and no other steroids, provides ligand discrimination and triggers a pi-cation switch that activates FXR~~. ~~Helix 12, the activation function 2 of the receptor~~, ~~adopts the agonist conformation and stabilizes coactivator peptide binding. FXR~~ is able to interact simultaneously with two coactivator motifs, providing a mechanism for enhanced binding of coactivators through intermolecular contacts between their LXXLL sequences. These FXR complexes provide direct insights into the ~~design of therapeutic bile acids for treatment of hyperlipidemia and cholestasis~~.

The line below this paragraph, {{ABSTRACT_PUBMED_12718893}}, adds the Publication Abstract to the page

(as it appears on PubMed at http://www.pubmed.gov), where 12718893 is the PubMed ID number.

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==About this Structure==

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[[Category: Lbd]]

[[Category: Nuclear receptor]]

''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on ~~Sat May 3 04~~:14:34 2008''

''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 03:47:15 2008''

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-[[Image:1osv.gif|left|200px]]
+{{Seed}}
+[[Image:1osv.png|left|200px]]
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 {{STRUCTURE_1osv|  PDB=1osv  |  SCENE=  }}
-'''STRUCTURAL BASIS FOR BILE ACID BINDING AND ACTIVATION OF THE NUCLEAR RECEPTOR FXR'''
+===STRUCTURAL BASIS FOR BILE ACID BINDING AND ACTIVATION OF THE NUCLEAR RECEPTOR FXR===
-==Overview==
+<!--
-The nuclear receptor FXR is the sensor of physiological levels of enterohepatic bile acids, the end products of cholesterol catabolism. Here we report crystal structures of the FXR ligand binding domain in complex with coactivator peptide and two different bile acids. An unusual A/B ring juncture, a feature associated with bile acids and no other steroids, provides ligand discrimination and triggers a pi-cation switch that activates FXR. Helix 12, the activation function 2 of the receptor, adopts the agonist conformation and stabilizes coactivator peptide binding. FXR is able to interact simultaneously with two coactivator motifs, providing a mechanism for enhanced binding of coactivators through intermolecular contacts between their LXXLL sequences. These FXR complexes provide direct insights into the design of therapeutic bile acids for treatment of hyperlipidemia and cholestasis.
+The line below this paragraph, {{ABSTRACT_PUBMED_12718893}}, adds the Publication Abstract to the page
+(as it appears on PubMed at http://www.pubmed.gov), where 12718893 is the PubMed ID number.
+-->
+{{ABSTRACT_PUBMED_12718893}}
 ==About this Structure==
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 [[Category: Lbd]]
 [[Category: Nuclear receptor]]
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 04:14:34 2008''
+''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 03:47:15 2008''