2i2b: Difference between revisions
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==Crystal structure of LmNADK1 from Listeria monocytogenes== | ==Crystal structure of LmNADK1 from Listeria monocytogenes== | ||
<StructureSection load='2i2b' size='340' side='right' caption='[[2i2b]], [[Resolution|resolution]] 2.10Å' scene=''> | <StructureSection load='2i2b' size='340' side='right'caption='[[2i2b]], [[Resolution|resolution]] 2.10Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2i2b]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacterium_monocytogenes_hominis"_nyfeldt_1932 "bacterium monocytogenes hominis" nyfeldt 1932]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2I2B OCA]. For a <b>guided tour on the structure components</b> use [http:// | <table><tr><td colspan='2'>[[2i2b]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacterium_monocytogenes_hominis"_nyfeldt_1932 "bacterium monocytogenes hominis" nyfeldt 1932]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2I2B OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=2I2B FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CC5:BETA-D-ERYTHROFURANOSYL-ADENOSINE'>CC5</scene>, <scene name='pdbligand=CIT:CITRIC+ACID'>CIT</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CC5:BETA-D-ERYTHROFURANOSYL-ADENOSINE'>CC5</scene>, <scene name='pdbligand=CIT:CITRIC+ACID'>CIT</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2i1w|2i1w]], [[2i29|2i29]], [[2i2a|2i2a]], [[2i2c|2i2c]], [[2i2d|2i2d]], [[2i2e|2i2e]], [[2i2f|2i2f]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2i1w|2i1w]], [[2i29|2i29]], [[2i2a|2i2a]], [[2i2c|2i2c]], [[2i2d|2i2d]], [[2i2e|2i2e]], [[2i2f|2i2f]]</td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ppnK1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1639 "Bacterium monocytogenes hominis" Nyfeldt 1932])</td></tr> | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ppnK1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1639 "Bacterium monocytogenes hominis" Nyfeldt 1932])</td></tr> | ||
<tr id='activity'><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> | <tr id='activity'><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> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http:// | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=2i2b FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2i2b OCA], [http://pdbe.org/2i2b PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2i2b RCSB], [http://www.ebi.ac.uk/pdbsum/2i2b PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2i2b ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
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</div> | </div> | ||
<div class="pdbe-citations 2i2b" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 2i2b" style="background-color:#fffaf0;"></div> | ||
==See Also== | |||
*[[NAD kinase|NAD kinase]] | |||
== References == | == References == | ||
<references/> | <references/> | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Bacterium monocytogenes hominis nyfeldt 1932]] | [[Category: Bacterium monocytogenes hominis nyfeldt 1932]] | ||
[[Category: Large Structures]] | |||
[[Category: Labesse, G]] | [[Category: Labesse, G]] | ||
[[Category: Poncet-Montange, G]] | [[Category: Poncet-Montange, G]] | ||
[[Category: Crystal structure of lmnadk1 in complex with ligand analog]] | [[Category: Crystal structure of lmnadk1 in complex with ligand analog]] | ||
[[Category: Transferase]] | [[Category: Transferase]] | ||
Revision as of 09:38, 25 June 2020
Crystal structure of LmNADK1 from Listeria monocytogenesCrystal structure of LmNADK1 from Listeria monocytogenes
Structural highlights
Function[NADK1_LISMO] Involved in the regulation of the intracellular balance of NAD and NADP, and is a key enzyme in the biosynthesis of NADP. Catalyzes specifically the phosphorylation on 2'-hydroxyl of the adenosine moiety of NAD to yield NADP.[HAMAP-Rule:MF_00361][1] [2] Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedHere 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. 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[3] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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