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{{STRUCTURE_3ktx|  PDB=3ktx  |  SCENE=  }}
==Crystal structure of Leishmania mexicana pyruvate kinase (LmPYK)in complex with 1,3,6,8-pyrenetetrasulfonic acid==
===Crystal structure of Leishmania mexicana pyruvate kinase (LmPYK)in complex with 1,3,6,8-pyrenetetrasulfonic acid===
<StructureSection load='3ktx' size='340' side='right' caption='[[3ktx]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
{{ABSTRACT_PUBMED_20208146}}
== Structural highlights ==
<table><tr><td colspan='2'>[[3ktx]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Leishmania_mexicana Leishmania mexicana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3KTX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3KTX FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=PTK:PYRENE-1,3,6,8-TETRASULFONIC+ACID'>PTK</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1pkl|1pkl]]</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PYK ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=5665 Leishmania mexicana])</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Pyruvate_kinase Pyruvate kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.40 2.7.1.40] </span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3ktx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ktx OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3ktx RCSB], [http://www.ebi.ac.uk/pdbsum/3ktx PDBsum]</span></td></tr>
</table>
== 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/kt/3ktx_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/chain_selection.php?pdb_ID=2ata ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The inclusion of novel small molecules in crystallization experiments has provided very encouraging results and this method is now emerging as a promising alternative strategy for crystallizing 'problematic' biological macromolecules. These small molecules have the ability to promote lattice formation through stabilizing intermolecular interactions in protein crystals. Here, the use of 1,3,6,8-pyrenetetrasulfonic acid (PTS), which provides a helpful intermolecular bridge between Leishmania mexicana PYK (LmPYK) macromolecules in the crystal, is reported, resulting in the rapid formation of a more stable crystal lattice at neutral pH and greatly improved X-ray diffraction results. The refined structure of the LmPYK-PTS complex revealed the negatively charged PTS molecule to be stacked between positively charged (surface-exposed) arginine side chains from neighbouring LmPYK molecules in the crystal lattice.


==About this Structure==
An improved strategy for the crystallization of Leishmania mexicana pyruvate kinase.,Morgan HP, McNae IW, Hsin KY, Michels PA, Fothergill-Gilmore LA, Walkinshaw MD Acta Crystallogr Sect F Struct Biol Cryst Commun. 2010 Mar 1;66(Pt, 3):215-8. Epub 2010 Feb 23. PMID:20208146<ref>PMID:20208146</ref>
[[3ktx]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Leishmania_mexicana Leishmania mexicana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3KTX OCA].
 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>


==See Also==
==See Also==
*[[Pyruvate Kinase|Pyruvate Kinase]]
*[[Pyruvate Kinase|Pyruvate Kinase]]
 
== References ==
==Reference==
<references/>
<ref group="xtra">PMID:020208146</ref><references group="xtra"/>
__TOC__
</StructureSection>
[[Category: Leishmania mexicana]]
[[Category: Leishmania mexicana]]
[[Category: Pyruvate kinase]]
[[Category: Pyruvate kinase]]
[[Category: Morgan, H P.]]
[[Category: Morgan, H P]]
[[Category: Walkinshaw, M D.]]
[[Category: Walkinshaw, M D]]
[[Category: Allosteric enzyme]]
[[Category: Allosteric enzyme]]
[[Category: Atp-binding]]
[[Category: Atp-binding]]
Retrieved from "https://proteopedia.org/3ktx"