View source for 3ukd


==UMP/CMP KINASE FROM SLIME MOLD COMPLEXED WITH ADP, CMP, AND ALF3==
<StructureSection load='3ukd' size='340' side='right'caption='[[3ukd]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3ukd]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Dictyostelium_discoideum Dictyostelium discoideum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3UKD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3UKD 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]] 1.9&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=AF3:ALUMINUM+FLUORIDE'>AF3</scene>, <scene name='pdbligand=C5P:CYTIDINE-5-MONOPHOSPHATE'>C5P</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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=3ukd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ukd OCA], [https://pdbe.org/3ukd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3ukd RCSB], [https://www.ebi.ac.uk/pdbsum/3ukd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3ukd ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/KCY_DICDI KCY_DICDI] This UMP-CMP kinase uses preferentially ATP as phosphate donor and is specific for UMP and CMP.
== 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/uk/3ukd_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=3ukd ConSurf].
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== Publication Abstract from PubMed ==
UMP/CMP kinase from Dictyostelium discoideum (UmpKdicty) catalyzes the specific transfer of the terminal phosphate of ATP to UMP or CMP. Crystal structures of UmpKdicty with substrates and the transition state analogs AlF3 or BeF2 that lock UmpKdicty in active conformations were solved. The positions of the catalytic Mg2+ and the highly conserved lysine of the P loop are virtually invariant in the different structures. In contrast, catalytic arginines move to stabilize charges that develop during this reaction. The location of the arginines indicates formation of negative charges during the reaction at the transferred phosphoryl group, but not at the phosphate bridging oxygen atoms. This is consistent with an associative phosphoryl transfer mechanism but not with a dissociative one.

Structures of active conformations of UMP kinase from Dictyostelium discoideum suggest phosphoryl transfer is associative.,Schlichting I, Reinstein J Biochemistry. 1997 Aug 5;36(31):9290-6. PMID:9280438<ref>PMID:9280438</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 3ukd" style="background-color:#fffaf0;"></div>

==See Also==
*[[UMP/CMP kinase|UMP/CMP kinase]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Dictyostelium discoideum]]
[[Category: Large Structures]]
[[Category: Reinstein J]]
[[Category: Schlichting I]]