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''' | ==Synthesis and evaluation of heterocyclic catechol mimics as inhibitors of catechol-O-methyltransferase (COMT): Structure with Cmpd27b== | ||
<StructureSection load='4xue' size='340' side='right' caption='[[4xue]], [[Resolution|resolution]] 2.30Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[4xue]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4XUE OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4XUE FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=43J:2-(BIPHENYL-3-YL)-5-HYDROXY-3-METHYLPYRIMIDIN-4(3H)-ONE'>43J</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SAM:S-ADENOSYLMETHIONINE'>SAM</scene></td></tr> | |||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4xuc|4xuc]], [[4xud|4xud]]</td></tr> | |||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Catechol_O-methyltransferase Catechol O-methyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.1.1.6 2.1.1.6] </span></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=4xue FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xue OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4xue RCSB], [http://www.ebi.ac.uk/pdbsum/4xue PDBsum]</span></td></tr> | |||
</table> | |||
== Function == | |||
[[http://www.uniprot.org/uniprot/COMT_HUMAN COMT_HUMAN]] Catalyzes the O-methylation, and thereby the inactivation, of catecholamine neurotransmitters and catechol hormones. Also shortens the biological half-lives of certain neuroactive drugs, like L-DOPA, alpha-methyl DOPA and isoproterenol. | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
3-Hydroxy-4-pyridinones and 5-hydroxy-4-pyrimidinones were identified as inhibitors of catechol-O-methyltransferase (COMT) in a high-throughput screen. These heterocyclic catechol mimics exhibit potent inhibition of the enzyme and an improved toxicity profile versus the marketed nitrocatechol inhibitors tolcapone and entacapone. Optimization of the series was aided by X-ray cocrystal structures of the novel inhibitors in complex with COMT and cofactors SAM and Mg(2+). The crystal structures suggest a mechanism of inhibition for these heterocyclic inhibitors distinct from previously disclosed COMT inhibitors. | |||
Synthesis and Evaluation of Heterocyclic Catechol Mimics as Inhibitors of Catechol-O-methyltransferase (COMT).,Harrison ST, Poslusney MS, Mulhearn JJ, Zhao Z, Kett NR, Schubert JW, Melamed JY, Allison TJ, Patel SB, Sanders JM, Sharma S, Smith RF, Hall DL, Robinson RG, Sachs NA, Hutson PH, Wolkenberg SE, Barrow JC ACS Med Chem Lett. 2015 Jan 26;6(3):318-23. doi: 10.1021/ml500502d. eCollection, 2015 Mar 12. PMID:25815153<ref>PMID:25815153</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
== References == | |||
[[Category: | <references/> | ||
__TOC__ | |||
</StructureSection> | |||
[[Category: Catechol O-methyltransferase]] | |||
[[Category: Allison, T]] | [[Category: Allison, T]] | ||
[[Category: Sanders, J | [[Category: Sanders, J M]] | ||
[[Category: Soisson, S | [[Category: Soisson, S M]] | ||
[[Category: Wolkenberg, S]] | [[Category: Wolkenberg, S]] | ||
[[Category: Catechol-o-methyltransferase]] | |||
[[Category: Comt]] | |||
Revision as of 15:46, 15 April 2015
Synthesis and evaluation of heterocyclic catechol mimics as inhibitors of catechol-O-methyltransferase (COMT): Structure with Cmpd27bSynthesis and evaluation of heterocyclic catechol mimics as inhibitors of catechol-O-methyltransferase (COMT): Structure with Cmpd27b
Structural highlights
Function[COMT_HUMAN] Catalyzes the O-methylation, and thereby the inactivation, of catecholamine neurotransmitters and catechol hormones. Also shortens the biological half-lives of certain neuroactive drugs, like L-DOPA, alpha-methyl DOPA and isoproterenol. Publication Abstract from PubMed3-Hydroxy-4-pyridinones and 5-hydroxy-4-pyrimidinones were identified as inhibitors of catechol-O-methyltransferase (COMT) in a high-throughput screen. These heterocyclic catechol mimics exhibit potent inhibition of the enzyme and an improved toxicity profile versus the marketed nitrocatechol inhibitors tolcapone and entacapone. Optimization of the series was aided by X-ray cocrystal structures of the novel inhibitors in complex with COMT and cofactors SAM and Mg(2+). The crystal structures suggest a mechanism of inhibition for these heterocyclic inhibitors distinct from previously disclosed COMT inhibitors. Synthesis and Evaluation of Heterocyclic Catechol Mimics as Inhibitors of Catechol-O-methyltransferase (COMT).,Harrison ST, Poslusney MS, Mulhearn JJ, Zhao Z, Kett NR, Schubert JW, Melamed JY, Allison TJ, Patel SB, Sanders JM, Sharma S, Smith RF, Hall DL, Robinson RG, Sachs NA, Hutson PH, Wolkenberg SE, Barrow JC ACS Med Chem Lett. 2015 Jan 26;6(3):318-23. doi: 10.1021/ml500502d. eCollection, 2015 Mar 12. PMID:25815153[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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