View source for 2az1


==Structure of a halophilic nucleoside diphosphate kinase from Halobacterium salinarum==
<StructureSection load='2az1' size='340' side='right'caption='[[2az1]], [[Resolution|resolution]] 2.35&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2az1]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Halobacterium_salinarum Halobacterium salinarum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AZ1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2AZ1 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.35&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2az1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2az1 OCA], [https://pdbe.org/2az1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2az1 RCSB], [https://www.ebi.ac.uk/pdbsum/2az1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2az1 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/NDK_HALSA NDK_HALSA] Major role in the synthesis of nucleoside triphosphates other than ATP. The ATP gamma phosphate is transferred to the NDP beta phosphate via a ping-pong mechanism, using a phosphorylated active-site intermediate.
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/az/2az1_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=2az1 ConSurf].
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== Publication Abstract from PubMed ==
Nucleoside diphosphate kinase from the halophilic archaeon Halobacterium salinarum was crystallized in a free state and a substrate-bound form with CDP. The structures were solved to a resolution of 2.35 and 2.2A, respectively. Crystals with the apo-form were obtained with His6-tagged enzyme, whereas the untagged form was used for co-crystallization with the nucleotide. Crosslinking under different salt and pH conditions revealed a stronger oligomerization tendency for the tagged protein at low and high salt concentrations. The influence of the His6-tag on the halophilic nature of the enzyme is discussed on the basis of the observed structural properties.

Structure of a halophilic nucleoside diphosphate kinase from Halobacterium salinarum.,Besir H, Zeth K, Bracher A, Heider U, Ishibashi M, Tokunaga M, Oesterhelt D FEBS Lett. 2005 Dec 5;579(29):6595-600. Epub 2005 Nov 9. PMID:16293253<ref>PMID:16293253</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 2az1" style="background-color:#fffaf0;"></div>

==See Also==
*[[Nucleoside diphosphate kinase 3D structures|Nucleoside diphosphate kinase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Halobacterium salinarum]]
[[Category: Large Structures]]
[[Category: Besir H]]
[[Category: Bracher A]]
[[Category: Heider U]]
[[Category: Ishibashi M]]
[[Category: Oesterhelt D]]
[[Category: Tokunaga M]]
[[Category: Zeth K]]