2fpy

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(New page: 200px<br /> <applet load="2fpy" size="450" color="white" frame="true" align="right" spinBox="true" caption="2fpy, resolution 2.000&Aring;" /> '''Dual binding mode ...)
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[[Image:2fpy.gif|left|200px]]<br />
 
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<applet load="2fpy" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="2fpy, resolution 2.000&Aring;" />
 
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'''Dual binding mode of a novel series of DHODH inhibitors'''<br />
 
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==Overview==
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==Dual binding mode of a novel series of DHODH inhibitors==
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Human dihydroorotate dehydrogenase (DHODH) represents an important target, for the treatment of hyperproliferative and inflammatory diseases. In the, cell DHODH catalyzes the rate-limiting step of the de novo pyrimidine, biosynthesis. DHODH inhibition results in beneficial immunosuppressant and, antiproliferative effects in diseases such as rheumatoid arthritis. Here, we present high-resolution X-ray structures of human DHODH in complex with, a novel class of low molecular weight compounds that inhibit the enzyme in, the nanomolar range. Some compounds showed an interesting dual binding, mode within the same cocrystal strongly depending on the nature of, chemical substitution. Measured in vitro activity data correlated with the, prevailing mode of binding and explained the observed structure-activity, relationship. Additionally, the X-ray data confirmed the competitive, nature of the inhibitors toward the putative ubiquinone binding site and, will guide structure-based design and synthesis of molecules with higher, activity.
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<StructureSection load='2fpy' size='340' side='right'caption='[[2fpy]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2fpy]] is a 1 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=2FPY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2FPY FirstGlance]. <br>
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</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&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=FMN:FLAVIN+MONONUCLEOTIDE'>FMN</scene>, <scene name='pdbligand=ILF:3-({[3,5-DIFLUORO-3-(TRIFLUOROMETHOXY)BIPHENYL-4-YL]AMINO}CARBONYL)THIOPHENE-2-CARBOXYLIC+ACID'>ILF</scene>, <scene name='pdbligand=ORO:OROTIC+ACID'>ORO</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2fpy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2fpy OCA], [https://pdbe.org/2fpy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2fpy RCSB], [https://www.ebi.ac.uk/pdbsum/2fpy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2fpy ProSAT]</span></td></tr>
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</table>
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== Disease ==
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[https://www.uniprot.org/uniprot/PYRD_HUMAN PYRD_HUMAN] Defects in DHODH are the cause of postaxial acrofacial dysostosis (POADS) [MIM:[https://omim.org/entry/263750 263750]; also known as Miller syndrome. POADS is characterized by severe micrognathia, cleft lip and/or palate, hypoplasia or aplasia of the posterior elements of the limbs, coloboma of the eyelids and supernumerary nipples. POADS is a very rare disorder: only 2 multiplex families, each consisting of 2 affected siblings born to unaffected, nonconsanguineous parents, have been described among a total of around 30 reported cases.<ref>PMID:19915526</ref>
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== Function ==
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[https://www.uniprot.org/uniprot/PYRD_HUMAN PYRD_HUMAN] Catalyzes the conversion of dihydroorotate to orotate with quinone as electron acceptor.
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fp/2fpy_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2fpy ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Human dihydroorotate dehydrogenase (DHODH) represents an important target for the treatment of hyperproliferative and inflammatory diseases. In the cell DHODH catalyzes the rate-limiting step of the de novo pyrimidine biosynthesis. DHODH inhibition results in beneficial immunosuppressant and antiproliferative effects in diseases such as rheumatoid arthritis. Here, we present high-resolution X-ray structures of human DHODH in complex with a novel class of low molecular weight compounds that inhibit the enzyme in the nanomolar range. Some compounds showed an interesting dual binding mode within the same cocrystal strongly depending on the nature of chemical substitution. Measured in vitro activity data correlated with the prevailing mode of binding and explained the observed structure-activity relationship. Additionally, the X-ray data confirmed the competitive nature of the inhibitors toward the putative ubiquinone binding site and will guide structure-based design and synthesis of molecules with higher activity.
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==About this Structure==
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Dual binding mode of a novel series of DHODH inhibitors.,Baumgartner R, Walloschek M, Kralik M, Gotschlich A, Tasler S, Mies J, Leban J J Med Chem. 2006 Feb 23;49(4):1239-47. PMID:16480261<ref>PMID:16480261</ref>
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2FPY is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] with ACT, SO4, FMN, ORO and ILF as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [http://en.wikipedia.org/wiki/Dihydroorotate_oxidase Dihydroorotate oxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.3.3.1 1.3.3.1] Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=2FPY OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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Dual binding mode of a novel series of DHODH inhibitors., Baumgartner R, Walloschek M, Kralik M, Gotschlich A, Tasler S, Mies J, Leban J, J Med Chem. 2006 Feb 23;49(4):1239-47. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=16480261 16480261]
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</div>
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[[Category: Dihydroorotate oxidase]]
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<div class="pdbe-citations 2fpy" style="background-color:#fffaf0;"></div>
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[[Category: Homo sapiens]]
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[[Category: Single protein]]
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[[Category: Baumgartner, R.]]
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[[Category: Leban, J.]]
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[[Category: ACT]]
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[[Category: FMN]]
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[[Category: ILF]]
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[[Category: ORO]]
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[[Category: SO4]]
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[[Category: protein inhibitor complex]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Mon Nov 12 22:09:12 2007''
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==See Also==
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*[[Dihydroorotate dehydrogenase 3D structures|Dihydroorotate dehydrogenase 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Homo sapiens]]
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[[Category: Large Structures]]
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[[Category: Baumgartner R]]
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[[Category: Leban J]]

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Dual binding mode of a novel series of DHODH inhibitors

PDB ID 2fpy

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