4dy6

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[[Image:4dy6.jpg|left|200px]]
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==Crystal structure of NAD kinase 1 from Listeria monocytogenes in complex with 2'-phosphate bis(adenosine)-5'-diphosphate==
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<StructureSection load='4dy6' size='340' side='right' caption='[[4dy6]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[4dy6]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Listeria_monocytogenes Listeria monocytogenes]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=2i2e 2i2e]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4DY6 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4DY6 FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=A22:[(2R,3S,4R,5R)-5-(6-AMINO-9H-PURIN-9-YL)-3,4-DIHYDROXYTETRAHYDROFURAN-2-YL]METHYL+[(2R,3R,4R,5R)-5-(6-AMINO-9H-PURIN-9-YL)-3-HYDROXY-4-(PHOSPHONOOXY)TETRAHYDROFURAN-2-YL]METHYL+DIHYDROGEN+DIPHOSPHATE'>A22</scene>, <scene name='pdbligand=CIT:CITRIC+ACID'>CIT</scene><br>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">lmo0968, ppnK1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1639 Listeria monocytogenes])</td></tr>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/NAD(+)_kinase NAD(+) kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.23 2.7.1.23] </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=4dy6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4dy6 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4dy6 RCSB], [http://www.ebi.ac.uk/pdbsum/4dy6 PDBsum]</span></td></tr>
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<table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Here we describe the crystal structures of the NAD kinase (LmNADK1) from Listeria monocytogenes in complex with its substrate NAD, its product NADP, or two synthesized NAD mimics. We identified one of the NAD mimics, di-adenosine diphosphate, as a new substrate for LmNADK1, whereas we showed that the closely related compound di-5'-thioadenosine is a novel non-natural inhibitor for this enzyme. These structures suggest a mechanism involving substrate-assisted catalysis. Indeed, sequence/structure comparison and directed mutagenesis have previously shown that NAD kinases (NADKs) and the distantly related 6-phosphofructokinases share the same catalytically important GGDGT motif. However, in this study we have shown that these enzymes use the central aspartate of this motif differently. Although this acidic residue chelates the catalytic Mg(2+) ion in 6-phosphofructokinases, it activates the phospho-acceptor (NAD) in NADKs. Sequence/structure comparisons suggest that the role of this aspartate would be conserved in NADKs and the related sphingosine and diacylglycerol kinases.
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NAD kinases use substrate-assisted catalysis for specific recognition of NAD.,Poncet-Montange G, Assairi L, Arold S, Pochet S, Labesse G J Biol Chem. 2007 Nov 23;282(47):33925-34. Epub 2007 Aug 8. PMID:17686780<ref>PMID:17686780</ref>
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The line below this paragraph, containing "STRUCTURE_4dy6", creates the "Structure Box" on the page.
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{{STRUCTURE_4dy6| PDB=4dy6 | SCENE= }}
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===Crystal structure of NAD kinase 1 from Listeria monocytogenes in complex with 2'-phosphate bis(adenosine)-5'-diphosphate===
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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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== References ==
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<references/>
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The line below this paragraph, {{ABSTRACT_PUBMED_17686780}}, adds the Publication Abstract to the page
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__TOC__
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(as it appears on PubMed at http://www.pubmed.gov), where 17686780 is the PubMed ID number.
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</StructureSection>
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{{ABSTRACT_PUBMED_17686780}}
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==About this Structure==
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[[4dy6]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Listeria_monocytogenes Listeria monocytogenes]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=2i2e 2i2e]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4DY6 OCA].
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==Reference==
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<ref group="xtra">PMID:017686780</ref><references group="xtra"/>
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[[Category: Listeria monocytogenes]]
[[Category: Listeria monocytogenes]]
[[Category: Arold, S.]]
[[Category: Arold, S.]]

Revision as of 08:33, 5 June 2014

Crystal structure of NAD kinase 1 from Listeria monocytogenes in complex with 2'-phosphate bis(adenosine)-5'-diphosphate

4dy6, resolution 2.20Å

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