View source for 4bcr


==Structure of PPARalpha in complex with WY14643==
<StructureSection load='4bcr' size='340' side='right'caption='[[4bcr]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4bcr]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4BCR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4BCR 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]] 2.497&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=WY1:2-({4-CHLORO-6-[(2,3-DIMETHYLPHENYL)AMINO]PYRIMIDIN-2-YL}SULFANYL)ACETIC+ACID'>WY1</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=4bcr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4bcr OCA], [https://pdbe.org/4bcr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4bcr RCSB], [https://www.ebi.ac.uk/pdbsum/4bcr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4bcr ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PPARA_HUMAN PPARA_HUMAN] Ligand-activated transcription factor. Key regulator of lipid metabolism. Activated by the endogenous ligand 1-palmitoyl-2-oleoyl-sn-glycerol-3-phosphocholine (16:0/18:1-GPC). Activated by oleylethanolamide, a naturally occurring lipid that regulates satiety (By similarity). Receptor for peroxisome proliferators such as hypolipidemic drugs and fatty acids. Regulates the peroxisomal beta-oxidation pathway of fatty acids. Functions as transcription activator for the ACOX1 and P450 genes. Transactivation activity requires heterodimerization with RXRA and is antagonized by NR2C2.<ref>PMID:7684926</ref> <ref>PMID:7629123</ref> <ref>PMID:9556573</ref> <ref>PMID:10195690</ref> 
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== Publication Abstract from PubMed ==
Peroxisome proliferator-activated receptors (PPARs) are members of a superfamily of nuclear transcription factors. They are involved in mediating numerous physiological effects in humans, including glucose and lipid metabolism. PPARalpha ligands effectively treat dyslipidemia and have significant antiinflammatory and anti-atherosclerotic activities. These effects and their ligand-dependent activity make nuclear receptors obvious targets for drug design. Here, we present the structure of the human PPARalpha in complex with WY14643, a member of fibrate class of drug, and a widely used PPAR activator. The crystal structure of this complex suggests that WY14643 induces activation of PPARalpha in an unusual bipartite mechanism involving conventional direct helix 12 stabilization and an alternative mode that involves a second ligand in the pocket. We present structural observations, molecular dynamics and activity assays that support the importance of the second site in WY14643 action. The unique binding mode of WY14643 reveals a new pattern of nuclear receptor ligand recognition and suggests a novel basis for ligand design, offering clues for improving the binding affinity and selectivity of ligand. We show that binding of WY14643 to PPARalpha was associated with antiinflammatory disease in a human corneal cell model, suggesting possible applications for PPARalpha ligands.

Molecular Mechanism of Peroxisome Proliferator-Activated Receptor alpha Activation by WY14643: a New Mode of Ligand Recognition and Receptor Stabilization.,Bernardes A, Souza PC, Muniz JR, Ricci CG, Ayers SD, Parekh NM, Godoy AS, Trivella DB, Reinach P, Webb P, Skaf MS, Polikarpov I J Mol Biol. 2013 May 21. pii: S0022-2836(13)00309-4. doi:, 10.1016/j.jmb.2013.05.010. PMID:23707408<ref>PMID:23707408</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 4bcr" style="background-color:#fffaf0;"></div>

==See Also==
*[[Peroxisome proliferator-activated receptor 3D structures|Peroxisome proliferator-activated receptor 3D structures]]
== References ==
<references/>
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Bernardes A]]
[[Category: Muniz JRC]]
[[Category: Polikarpov I]]