2wm1

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[[Image:2wm1.png|left|200px]]
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==THE CRYSTAL STRUCTURE OF HUMAN ALPHA-AMINO-BETA-CARBOXYMUCONATE-EPSILON-SEMIALDEHYDE DECARBOXYLASE IN COMPLEX WITH 1,3- DIHYDROXYACETONEPHOSPHATE SUGGESTS A REGULATORY LINK BETWEEN NAD SYNTHESIS AND GLYCOLYSIS==
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<StructureSection load='2wm1' size='340' side='right' caption='[[2wm1]], [[Resolution|resolution]] 2.01&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2wm1]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2WM1 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2WM1 FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=13P:1,3-DIHYDROXYACETONEPHOSPHATE'>13P</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene><br>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Aminocarboxymuconate-semialdehyde_decarboxylase Aminocarboxymuconate-semialdehyde decarboxylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.1.1.45 4.1.1.45] </span></td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2wm1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2wm1 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2wm1 RCSB], [http://www.ebi.ac.uk/pdbsum/2wm1 PDBsum]</span></td></tr>
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<table>
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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/wm/2wm1_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/chain_selection.php?pdb_ID=2ata 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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The enzyme alpha-amino-beta-carboxymuconate-epsilon-semialdehyde decarboxylase (ACMSD) is a zinc-dependent amidohydrolase that participates in picolinic acid (PA), quinolinic acid (QA) and NAD homeostasis. Indeed, the enzyme stands at a branch point of the tryptophan to NAD pathway, and determines the final fate of the amino acid, i.e. transformation into PA, complete oxidation through the citric acid cycle, or conversion into NAD through QA synthesis. Both PA and QA are key players in a number of physiological and pathological conditions, mainly affecting the central nervous system. As their relative concentrations must be tightly controlled, modulation of ACMSD activity appears to be a promising prospect for the treatment of neurological disorders, including cerebral malaria. Here we report the 2.0 A resolution crystal structure of human ACMSD in complex with the glycolytic intermediate 1,3-dihydroxyacetonephosphate (DHAP), refined to an R-factor of 0.19. DHAP, which we discovered to be a potent enzyme inhibitor, resides in the ligand binding pocket with its phosphate moiety contacting the catalytically essential zinc ion through mediation of a solvent molecule. Arg47, Asp291 and Trp191 appear to be the key residues for DHAP recognition in human ACMSD. Ligand binding induces a significant conformational change affecting a strictly conserved Trp-Met couple, and we propose that these residues are involved in controlling ligand admission into ACMSD. Our data may be used for the design of inhibitors with potential medical interest, and suggest a regulatory link between de novo NAD biosynthesis and glycolysis.
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{{STRUCTURE_2wm1| PDB=2wm1 | SCENE= }}
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The crystal structure of human alpha-amino-beta-carboxymuconate-epsilon-semialdehyde decarboxylase in complex with 1,3-dihydroxyacetonephosphate suggests a regulatory link between NAD synthesis and glycolysis.,Garavaglia S, Perozzi S, Galeazzi L, Raffaelli N, Rizzi M FEBS J. 2009 Nov;276(22):6615-23. Epub 2009 Oct 16. PMID:19843166<ref>PMID:19843166</ref>
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===THE CRYSTAL STRUCTURE OF HUMAN ALPHA-AMINO-BETA-CARBOXYMUCONATE-EPSILON-SEMIALDEHYDE DECARBOXYLASE IN COMPLEX WITH 1,3- DIHYDROXYACETONEPHOSPHATE SUGGESTS A REGULATORY LINK BETWEEN NAD SYNTHESIS AND GLYCOLYSIS===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_19843166}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[2wm1]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2WM1 OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:019843166</ref><references group="xtra"/>
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[[Category: Aminocarboxymuconate-semialdehyde decarboxylase]]
[[Category: Aminocarboxymuconate-semialdehyde decarboxylase]]
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]

Revision as of 01:57, 1 October 2014

THE CRYSTAL STRUCTURE OF HUMAN ALPHA-AMINO-BETA-CARBOXYMUCONATE-EPSILON-SEMIALDEHYDE DECARBOXYLASE IN COMPLEX WITH 1,3- DIHYDROXYACETONEPHOSPHATE SUGGESTS A REGULATORY LINK BETWEEN NAD SYNTHESIS AND GLYCOLYSIS

2wm1, resolution 2.01Å

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