1y3i
From Proteopedia
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==Crystal Structure of Mycobacterium tuberculosis NAD kinase-NAD complex== | ==Crystal Structure of Mycobacterium tuberculosis NAD kinase-NAD complex== | ||
| - | <StructureSection load='1y3i' size='340' side='right' caption='[[1y3i]], [[Resolution|resolution]] 2.60Å' scene=''> | + | <StructureSection load='1y3i' size='340' side='right'caption='[[1y3i]], [[Resolution|resolution]] 2.60Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[1y3i]] is a 2 chain structure with sequence from [ | + | <table><tr><td colspan='2'>[[1y3i]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Y3I OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1Y3I FirstGlance]. <br> |
| - | </td></tr><tr id=' | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.6Å</td></tr> |
| - | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NAD:NICOTINAMIDE-ADENINE-DINUCLEOTIDE'>NAD</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | |
| - | <tr id=' | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1y3i FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1y3i OCA], [https://pdbe.org/1y3i PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1y3i RCSB], [https://www.ebi.ac.uk/pdbsum/1y3i PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1y3i ProSAT], [https://www.topsan.org/Proteins/TBSGC/1y3i TOPSAN]</span></td></tr> |
| - | < | + | |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | |
</table> | </table> | ||
== Function == | == Function == | ||
| - | [ | + | [https://www.uniprot.org/uniprot/NADK_MYCTU NADK_MYCTU] 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. It can use ATP and other nucleoside triphosphates as well as inorganic polyphosphate (poly(P)) as a source of phosphorus.[HAMAP-Rule:MF_00361]<ref>PMID:11006082</ref> <ref>PMID:15182203</ref> |
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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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/main_output.php?pdb_ID=1y3i ConSurf]. | </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/main_output.php?pdb_ID=1y3i ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | NAD kinase is a key enzyme in NADP biosynthesis. We solved the crystal structure of polyphosphate/ATP-NAD kinase from Mycobacterium tuberculosis (Ppnk) complexed with NAD (Ppnk-NAD) at 2.6A resolution using apo-Ppnk structure solved in this work, and revealed the details of the structure and NAD-binding site. Superimposition of tertiary structures of apo-Ppnk and Ppnk-NAD demonstrated a substantial conformational difference in a loop (Ppnk-flexible loop). As a quaternary structure, these Ppnk structures exhibited tetramer as in solution condition. Notably, the Ppnk-flexible loop was involved in the intersubunit contact and probably related to the NAD-binding of the other subunit. Furthermore, the two residues (Asp189, His226) substantially contributed to creating NAD-binding site on the other subunit. The two residues and the residues involved in NAD-binding were conserved. However, residues corresponding to the Ppnk-flexible loop were not conserved, making us to speculate that the Ppnk-flexible loop may be Ppnk-specific. | ||
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| - | NAD-binding mode and the significance of intersubunit contact revealed by the crystal structure of Mycobacterium tuberculosis NAD kinase-NAD complex.,Mori S, Yamasaki M, Maruyama Y, Momma K, Kawai S, Hashimoto W, Mikami B, Murata K Biochem Biophys Res Commun. 2005 Feb 11;327(2):500-8. PMID:15629142<ref>PMID:15629142</ref> | ||
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| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| - | </div> | ||
| - | <div class="pdbe-citations 1y3i" style="background-color:#fffaf0;"></div> | ||
==See Also== | ==See Also== | ||
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__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: | + | [[Category: Large Structures]] |
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[[Category: Mycobacterium tuberculosis]] | [[Category: Mycobacterium tuberculosis]] | ||
| - | [[Category: | + | [[Category: Hashimoto W]] |
| - | [[Category: | + | [[Category: Kawai S]] |
| - | [[Category: | + | [[Category: Maruyama Y]] |
| - | [[Category: | + | [[Category: Mikami B]] |
| + | [[Category: Momma K]] | ||
| + | [[Category: Mori S]] | ||
| + | [[Category: Murata K]] | ||
| + | [[Category: Yamasaki M]] | ||
Current revision
Crystal Structure of Mycobacterium tuberculosis NAD kinase-NAD complex
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