5y2t

From Proteopedia

(Difference between revisions)

Revision as of 07:04, 14 October 2020

Structure of PPARgamma ligand binding domain - lobeglitazone complex

Structural highlights

5y2t is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[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: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.^[1] Defects in PPARG are the cause of familial partial lipodystrophy type 3 (FPLD3) [MIM: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.^[2] ^[3] Genetic variations in PPARG can be associated with susceptibility to glioma type 1 (GLM1) [MIM: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

[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.^[4] ^[5] ^[6]

Publication Abstract from PubMed

Peroxisome proliferator-activator receptor (PPAR) gamma is a nuclear hormone receptor that regulates glucose homeostasis, lipid metabolism, and adipocyte function. PPARgamma is a target for thiazolidinedione (TZD) class of drugs which are widely used for the treatment of type 2 diabetes. Recently, lobeglitazone was developed as a highly effective TZD with reduced side effects by Chong Kun Dang Pharmaceuticals. To identify the structural determinants for the high potency of lobeglitazone as a PPARgamma agonist, we determined the crystal structures of the PPARgamma ligand binding domain (LBD) in complex with lobeglitazone and pioglitazone at 1.7 and 1.8 A resolutions, respectively. Comparison of ligand-bound PPARgamma structures revealed that the binding modes of TZDs are well conserved. The TZD head group forms hydrogen bonds with the polar residues in the AF-2 pocket and helix 12, stabilizing the active conformation of the LBD. The unique p-methoxyphenoxy group of lobeglitazone makes additional hydrophobic contacts with the Omega-pocket. Docking analysis using the structures of TZD-bound PPARgamma suggested that lobeglitazone displays 12 times higher affinity to PPARgamma compared to rosiglitazone and pioglitazone. This structural difference correlates with the enhanced affinity and the low effective dose of lobeglitazone compared to the other TZDs.

Structures of PPARgamma complexed with lobeglitazone and pioglitazone reveal key determinants for the recognition of antidiabetic drugs.,Lee MA, Tan L, Yang H, Im YG, Im YJ Sci Rep. 2017 Dec 4;7(1):16837. doi: 10.1038/s41598-017-17082-x. PMID:29203903^[7]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Ristow M, Muller-Wieland D, Pfeiffer A, Krone W, Kahn CR. Obesity associated with a mutation in a genetic regulator of adipocyte differentiation. N Engl J Med. 1998 Oct 1;339(14):953-9. PMID:9753710 doi:10.1056/NEJM199810013391403
↑ Hegele RA, Cao H, Frankowski C, Mathews ST, Leff T. PPARG F388L, a transactivation-deficient mutant, in familial partial lipodystrophy. Diabetes. 2002 Dec;51(12):3586-90. PMID:12453919
↑ Agarwal AK, Garg A. A novel heterozygous mutation in peroxisome proliferator-activated receptor-gamma gene in a patient with familial partial lipodystrophy. J Clin Endocrinol Metab. 2002 Jan;87(1):408-11. PMID:11788685
↑ Mukherjee R, Jow L, Croston GE, Paterniti JR Jr. Identification, characterization, and tissue distribution of human peroxisome proliferator-activated receptor (PPAR) isoforms PPARgamma2 versus PPARgamma1 and activation with retinoid X receptor agonists and antagonists. J Biol Chem. 1997 Mar 21;272(12):8071-6. PMID:9065481
↑ Yin Y, Yuan H, Wang C, Pattabiraman N, Rao M, Pestell RG, Glazer RI. 3-phosphoinositide-dependent protein kinase-1 activates the peroxisome proliferator-activated receptor-gamma and promotes adipocyte differentiation. Mol Endocrinol. 2006 Feb;20(2):268-78. Epub 2005 Sep 8. PMID:16150867 doi:10.1210/me.2005-0197
↑ Park SH, Choi HJ, Yang H, Do KH, Kim J, Lee DW, Moon Y. Endoplasmic reticulum stress-activated C/EBP homologous protein enhances nuclear factor-kappaB signals via repression of peroxisome proliferator-activated receptor gamma. J Biol Chem. 2010 Nov 12;285(46):35330-9. doi: 10.1074/jbc.M110.136259. Epub 2010, Sep 9. PMID:20829347 doi:10.1074/jbc.M110.136259
↑ Lee MA, Tan L, Yang H, Im YG, Im YJ. Structures of PPARgamma complexed with lobeglitazone and pioglitazone reveal key determinants for the recognition of antidiabetic drugs. Sci Rep. 2017 Dec 4;7(1):16837. doi: 10.1038/s41598-017-17082-x. PMID:29203903 doi:http://dx.doi.org/10.1038/s41598-017-17082-x

1 Structural highlights
2 Disease
3 Function
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5y2t"

@@ Line 1: / Line 1: @@
 ==Structure of PPARgamma ligand binding domain - lobeglitazone complex==
-<StructureSection load='5y2t' size='340' side='right' caption='[[5y2t]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
+<StructureSection load='5y2t' size='340' side='right'caption='[[5y2t]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5y2t]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5Y2T OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5Y2T FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5y2t]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5Y2T OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=5Y2T FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=8LX:(5S)-5-[[4-[2-[[6-(4-methoxyphenoxy)pyrimidin-4-yl]-methyl-amino]ethoxy]phenyl]methyl]-1,3-thiazolidine-2,4-dione'>8LX</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=8LX:(5S)-5-[[4-[2-[[6-(4-methoxyphenoxy)pyrimidin-4-yl]-methyl-amino]ethoxy]phenyl]methyl]-1,3-thiazolidine-2,4-dione'>8LX</scene></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5y2t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5y2t OCA], [http://pdbe.org/5y2t PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5y2t RCSB], [http://www.ebi.ac.uk/pdbsum/5y2t PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5y2t ProSAT]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=5y2t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5y2t OCA], [http://pdbe.org/5y2t PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5y2t RCSB], [http://www.ebi.ac.uk/pdbsum/5y2t PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5y2t ProSAT]</span></td></tr>
 </table>
 == Disease ==
@@ Line 20: / Line 20: @@
 </div>
 <div class="pdbe-citations 5y2t" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Peroxisome proliferator-activated receptor 3D structures|Peroxisome proliferator-activated receptor 3D structures]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
+[[Category: Large Structures]]
 [[Category: Im, Y J]]
 [[Category: Lee, M]]

5y2t

From Proteopedia

Revision as of 07:04, 14 October 2020

Structure of PPARgamma ligand binding domain - lobeglitazone complex

Structural highlights

Disease

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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