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4xrx

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==Crystal structure of a metabolic reductase with (E)-5-((1-methyl-5-oxo-2-thioxoimidazolidin-4-ylidene)methyl)pyridin-2(1H)-one==
==Crystal structure of a metabolic reductase with (E)-5-((1-methyl-5-oxo-2-thioxoimidazolidin-4-ylidene)methyl)pyridin-2(1H)-one==
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<StructureSection load='4xrx' size='340' side='right' caption='[[4xrx]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
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<StructureSection load='4xrx' size='340' side='right'caption='[[4xrx]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[4xrx]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4XRX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4XRX FirstGlance]. <br>
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<table><tr><td colspan='2'>[[4xrx]] 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=4XRX OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4XRX FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=42V:5-[(E)-(1-METHYL-5-OXO-2-THIOXOIMIDAZOLIDIN-4-YLIDENE)METHYL]PYRIDIN-2(1H)-ONE'>42V</scene>, <scene name='pdbligand=NDP:NADPH+DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NDP</scene></td></tr>
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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]] 3.2&#8491;</td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4xs3|4xs3]]</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=42V:5-[(E)-(1-METHYL-5-OXO-2-THIOXOIMIDAZOLIDIN-4-YLIDENE)METHYL]PYRIDIN-2(1H)-ONE'>42V</scene>, <scene name='pdbligand=NDP:NADPH+DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NDP</scene></td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Isocitrate_dehydrogenase_(NADP(+)) Isocitrate dehydrogenase (NADP(+))], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.42 1.1.1.42] </span></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=4xrx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xrx OCA], [https://pdbe.org/4xrx PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4xrx RCSB], [https://www.ebi.ac.uk/pdbsum/4xrx PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4xrx ProSAT]</span></td></tr>
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<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=4xrx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xrx OCA], [http://pdbe.org/4xrx PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4xrx RCSB], [http://www.ebi.ac.uk/pdbsum/4xrx PDBsum]</span></td></tr>
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</table>
</table>
== Disease ==
== Disease ==
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[[http://www.uniprot.org/uniprot/IDHC_HUMAN IDHC_HUMAN]] Defects in IDH1 are involved in the development of glioma (GLM) [MIM:[http://omim.org/entry/137800 137800]]. Gliomas are central nervous system neoplasms derived from glial cells and comprise astrocytomas, glioblastoma multiforme, oligodendrogliomas, and ependymomas. Note=Mutations affecting Arg-132 are tissue-specific, and suggest that this residue plays a unique role in the development of high-grade gliomas. Mutations of Arg-132 to Cys, His, Leu or Ser abolish magnesium binding and abolish the conversion of isocitrate to alpha-ketoglutarate. Instead, alpha-ketoglutarate is converted to R(-)-2-hydroxyglutarate. Elevated levels of R(-)-2-hydroxyglutarate are correlated with an elevated risk of malignant brain tumors.
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[https://www.uniprot.org/uniprot/IDHC_HUMAN IDHC_HUMAN] Defects in IDH1 are involved in the development of glioma (GLM) [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=Mutations affecting Arg-132 are tissue-specific, and suggest that this residue plays a unique role in the development of high-grade gliomas. Mutations of Arg-132 to Cys, His, Leu or Ser abolish magnesium binding and abolish the conversion of isocitrate to alpha-ketoglutarate. Instead, alpha-ketoglutarate is converted to R(-)-2-hydroxyglutarate. Elevated levels of R(-)-2-hydroxyglutarate are correlated with an elevated risk of malignant brain tumors.
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<div style="background-color:#fffaf0;">
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== Function ==
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== Publication Abstract from PubMed ==
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[https://www.uniprot.org/uniprot/IDHC_HUMAN IDHC_HUMAN]
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Somatic mutations of isocitrate dehydrogenase 1 (IDH1) at R132 are frequently found in certain cancers such as glioma. With losing the activity of wild-type IDH1, the R132H and R132C mutant proteins can reduce alpha-ketoglutaric acid (alpha-KG) to d-2-hydroxyglutaric acid (D2HG). The resulting high concentration of D2HG inhibits many alpha-KG-dependent dioxygenases, including histone demethylases, to cause broad histone hypermethylation. These aberrant epigenetic changes are responsible for the initiation of these cancers. We report the synthesis, structure-activity relationships, enzyme kinetics, and binding thermodynamics of a novel series of 2-thiohydantoin and related compounds, among which several compounds are potent inhibitors of mutant IDH1 with Ki as low as 420 nM. X-ray crystal structures of IDH1(R132H) in complex with two inhibitors are reported, showing their inhibitor-protein interactions. These compounds can decrease the cellular concentration of D2HG, reduce the levels of histone methylation, and suppress the proliferation of stem-like cancer cells in BT142 glioma with IDH1 R132H mutation.
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Inhibition of Cancer-Associated Mutant Isocitrate Dehydrogenases by 2-Thiohydantoin Compounds.,Wu F, Jiang H, Zheng B, Kogiso M, Yao Y, Zhou C, Li XN, Song Y J Med Chem. 2015 Sep 10;58(17):6899-908. doi: 10.1021/acs.jmedchem.5b00684. Epub , 2015 Aug 26. PMID:26280302<ref>PMID:26280302</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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==See Also==
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</div>
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*[[Isocitrate dehydrogenase 3D structures|Isocitrate dehydrogenase 3D structures]]
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<div class="pdbe-citations 4xrx" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Jiang, H]]
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[[Category: Homo sapiens]]
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[[Category: Kogiso, M]]
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[[Category: Large Structures]]
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[[Category: Li, X]]
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[[Category: Jiang H]]
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[[Category: Song, Y]]
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[[Category: Kogiso M]]
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[[Category: Wu, F]]
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[[Category: Li X]]
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[[Category: Yao, Y]]
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[[Category: Song Y]]
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[[Category: Zheng, B]]
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[[Category: Wu F]]
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[[Category: Zhou, C]]
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[[Category: Yao Y]]
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[[Category: Oxidoreductase-oxidoreductase inhibitor complex]]
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[[Category: Zheng B]]
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[[Category: Oxidoreductase/oxidoreductase inhibitor]]
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[[Category: Zhou C]]

Current revision

Crystal structure of a metabolic reductase with (E)-5-((1-methyl-5-oxo-2-thioxoimidazolidin-4-ylidene)methyl)pyridin-2(1H)-one

PDB ID 4xrx

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