View source for 6ijs


==Human PPARgamma ligand binding domain complexed with SB1494==
<StructureSection load='6ijs' size='340' side='right'caption='[[6ijs]], [[Resolution|resolution]] 2.15&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6ijs]] 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=6IJS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6IJS 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]] 2.15&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=A9F:~{N}-[[3-[[(1~{R},2~{S})-2-[[(~{E})-2-cyano-4,4-dimethyl-pent-2-enoyl]amino]cyclopentyl]oxymethyl]phenyl]methyl]-4-[(4-methylpiperazin-1-yl)methyl]benzamide'>A9F</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=6ijs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6ijs OCA], [https://pdbe.org/6ijs PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6ijs RCSB], [https://www.ebi.ac.uk/pdbsum/6ijs PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6ijs ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/PPARG_HUMAN PPARG_HUMAN] Note=Defects in PPARG can lead to type 2 insulin-resistant diabetes and hyptertension. PPARG mutations may be associated with colon cancer.  Defects in PPARG may be associated with susceptibility to obesity (OBESITY) [MIM:[https://omim.org/entry/601665 601665]. It is a condition characterized by an increase of body weight beyond the limitation of skeletal and physical requirements, as the result of excessive accumulation of body fat.<ref>PMID:9753710</ref>   Defects in PPARG are the cause of familial partial lipodystrophy type 3 (FPLD3) [MIM:[https://omim.org/entry/604367 604367]. Familial partial lipodystrophies (FPLD) are a heterogeneous group of genetic disorders characterized by marked loss of subcutaneous (sc) fat from the extremities. Affected individuals show an increased preponderance of insulin resistance, diabetes mellitus and dyslipidemia.<ref>PMID:12453919</ref> <ref>PMID:11788685</ref>   Genetic variations in PPARG can be associated with susceptibility to glioma type 1 (GLM1) [MIM:[https://omim.org/entry/137800 137800]. Gliomas are central nervous system neoplasms derived from glial cells and comprise astrocytomas, glioblastoma multiforme, oligodendrogliomas, and ependymomas. Note=Polymorphic PPARG alleles have been found to be significantly over-represented among a cohort of American patients with sporadic glioblastoma multiforme suggesting a possible contribution to disease susceptibility.
== Function ==
[https://www.uniprot.org/uniprot/PPARG_HUMAN PPARG_HUMAN] Receptor that binds peroxisome proliferators such as hypolipidemic drugs and fatty acids. Once activated by a ligand, the receptor binds to a promoter element in the gene for acyl-CoA oxidase and activates its transcription. It therefore controls the peroxisomal beta-oxidation pathway of fatty acids. Key regulator of adipocyte differentiation and glucose homeostasis. Acts as a critical regulator of gut homeostasis by suppressing NF-kappa-B-mediated proinflammatory responses.<ref>PMID:9065481</ref> <ref>PMID:16150867</ref> <ref>PMID:20829347</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Peroxisome proliferator-activated receptor gamma (PPARgamma) is a major therapeutic target for the treatment of type 2 diabetes. However, the use of PPARgamma-targeted drugs, such as rosiglitazone and pioglitazone, is limited owing to serious side effects caused by classical agonism. Using a rational drug discovery approach, we recently developed SB1495, a novel reversible covalent inhibitor of the cyclin-dependent kinase 5 (Cdk5)-mediated phosphorylation of PPARgamma at Ser245, a key factor in the insulin-sensitizing effect of PPARgamma-targeted drugs. In this study, we report the crystal structures of PPARgamma in complex with SB1495 and its enantiomeric analogue SB1494, which rarely exhibits inhibitory activity, to visualize the mechanistic basis for their distinct activities. SB1495 occupies the Arm3 region near the Omega loop of the PPARgamma ligand-binding domain, whereas its enantiomeric analogue SB1494 binds to the Arm2 region. In addition, the piperazine moiety of SB1495 directly pushes the helix H2', resulting in the stabilization of the Omega loop just behind the helix H2'. Our results may contribute to the development of a new generation of antidiabetic drugs that selectively block PPARgamma phosphorylation without classical agonism.

Structural basis for the inhibitory effects of a novel reversible covalent ligand on PPARgamma phosphorylation.,Jang JY, Kim H, Kim HJ, Suh SW, Park SB, Han BW Sci Rep. 2019 Aug 1;9(1):11168. doi: 10.1038/s41598-019-47672-w. PMID:31371757<ref>PMID:31371757</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6ijs" style="background-color:#fffaf0;"></div>

==See Also==
*[[Peroxisome proliferator-activated receptor 3D structures|Peroxisome proliferator-activated receptor 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Han BW]]
[[Category: Jang JY]]