View source for 5ufs


==X-Ray Crystal Structure of the Ancestral Glucocorticoid Receptor 2 ligand binding domain in complex with triamcinolone acetonide and SHP coregulator fragment==
<StructureSection load='5ufs' size='340' side='right'caption='[[5ufs]], [[Resolution|resolution]] 2.12&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5ufs]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Unidentified Unidentified]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5UFS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5UFS FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.118&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=1TA:TRIAMCINOLONE+ACETONIDE'>1TA</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=5ufs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ufs OCA], [https://pdbe.org/5ufs PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5ufs RCSB], [https://www.ebi.ac.uk/pdbsum/5ufs PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5ufs ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/A0A1X8XLE9_9ZZZZ A0A1X8XLE9_9ZZZZ] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The synthetic glucocorticoids (GCs) dexamethasone, mometasone furoate, and triamcinolone acetonide have been pharmaceutical mainstays to treat chronic inflammatory diseases. These drugs bind to the glucocorticoid receptor (GR), a ligand- activated transcription factor and member of the nuclear receptor superfamily. GR is widely recognized as a therapeutic target for its ability to counter pro-inflammatory signaling. Despite the popularity of GCs in the clinic, long-term use leads to numerous side effects, driving the need for new and improved drugs with less off-target pharmacology. X-ray crystal structures have played an important role in the drug-design process, permitting the characterization of robust structure-function relationships. However, steroid receptor ligand-binding domains (LBDs) are inherently unstable and their crystallization has required extensive mutagenesis to enhance expression and crystallization. Here, we utilize an ancestral variant of GR as a tool to generate a high- resolution crystal structure of GR in complex with the potent glucocorticoid triamcinolone acetonide (TA) and a fragment of the small heterodimer partner (SHP). Using structural analysis, molecular dynamics and biochemistry, we show that TA increases intramolecular contacts within the LBD to drive affinity and enhance stability of the receptor-ligand complex. These data support the emerging theme that ligand- induced receptor conformational dynamics at the mouth of the pocket play a major role in steroid receptor activation. This work also represents the first GR structure in complex with SHP, which has been suggested to play a role in modulating hepatic GR function.

Structural analysis of the glucocorticoid receptor ligand-binding domain in complex with triamcinolone acetonide and a fragment of the atypical coregulator, SHP.,Weikum ER, Okafor DC, D'Agostino EH, Colucci JK, Ortlund EA Mol Pharmacol. 2017 Apr 10. pii: mol.117.108506. doi: 10.1124/mol.117.108506. PMID:28396564<ref>PMID:28396564</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5ufs" style="background-color:#fffaf0;"></div>

==See Also==
*[[Glucocorticoid receptor 3D structures|Glucocorticoid receptor 3D structures]]
== References ==
<references/>
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Unidentified]]
[[Category: Ortlund EA]]
[[Category: Weikum ER]]