View source for 3ioe


==Crystal Structure of Mycobacterium Tuberculosis Pantothenate Synthetase at 1.95 Ang resolution in complex with 5'-deoxy-5'-((R)-3,4-dihydroxybutylthio)-adenosine==
<StructureSection load='3ioe' size='340' side='right'caption='[[3ioe]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3ioe]] 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=3IOE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3IOE 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]] 1.95&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=A7D:5-S-[(3R)-3,4-DIHYDROXYBUTYL]-5-THIOADENOSINE'>A7D</scene>, <scene name='pdbligand=EOH:ETHANOL'>EOH</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=3ioe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ioe OCA], [https://pdbe.org/3ioe PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3ioe RCSB], [https://www.ebi.ac.uk/pdbsum/3ioe PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3ioe ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PANC_MYCTU PANC_MYCTU] Catalyzes the condensation of pantoate with beta-alanine in an ATP-dependent reaction via a pantoyl-adenylate intermediate.<ref>PMID:11669627</ref> 
== 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/io/3ioe_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=3ioe ConSurf].
<div style="clear:both"></div>
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== Publication Abstract from PubMed ==
A new strategy that combines the concepts of fragment-based drug design and dynamic combinatorial chemistry (DCC) for targeting adenosine recognition sites on enzymes is reported. We demonstrate the use of 5'-deoxy-5'-thioadenosine as a noncovalent anchor fragment in dynamic combinatorial libraries templated by Mycobacterium tuberculosis pantothenate synthetase. A benzyl disulfide derivative was identified upon library analysis by HPLC. Structural and binding studies of protein-ligand complexes by X-ray crystallography and isothermal titration calorimetry informed the subsequent optimisation of the DCC hit into a disulfide containing the novel meta-nitrobenzyl fragment that targets the pantoate binding site of pantothenate synthetase. Given the prevalence of adenosine-recognition motifs in enzymes, our results provide a proof-of-concept for using this strategy to probe adjacent pockets for a range of adenosine binding enzymes, including other related adenylate-forming ligases, kinases, and ATPases, as well as NAD(P)(H), CoA and FAD(H2) binding proteins.

A fragment-based approach to probing adenosine recognition sites by using dynamic combinatorial chemistry.,Scott DE, Dawes GJ, Ando M, Abell C, Ciulli A Chembiochem. 2009 Nov 23;10(17):2772-9. PMID:19827080<ref>PMID:19827080</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 3ioe" style="background-color:#fffaf0;"></div>

==See Also==
*[[Pantothenate synthetase|Pantothenate synthetase]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Mycobacterium tuberculosis]]
[[Category: Abell C]]
[[Category: Ciulli A]]
[[Category: Scott DE]]