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{{STRUCTURE_3qhd|  PDB=3qhd  |  SCENE=  }}
==Crystal structure of 2-C-METHYL-D-ERYTHRITOL 2,4-CYCLODIPHOSPHATE Synthase from BURKHOLDERIA PSEUDOMALLEI bound to CYTIDINE, FOL795 and FOL955==
===Crystal structure of 2-C-METHYL-D-ERYTHRITOL 2,4-CYCLODIPHOSPHATE Synthase from BURKHOLDERIA PSEUDOMALLEI bound to CYTIDINE, FOL795 and FOL955===
<StructureSection load='3qhd' size='340' side='right' caption='[[3qhd]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
{{ABSTRACT_PUBMED_21359640}}
== Structural highlights ==
<table><tr><td colspan='2'>[[3qhd]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Burkholderia_pseudomallei_1710b Burkholderia pseudomallei 1710b]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3QHD OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3QHD FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=795:2-(PYRIDIN-3-YL)-1,3-THIAZOLE-4-CARBALDEHYDE'>795</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=CTN:4-AMINO-1-BETA-D-RIBOFURANOSYL-2(1H)-PYRIMIDINONE'>CTN</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MSR:4-(1H-IMIDAZOL-1-YL)PHENOL'>MSR</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3f0d|3f0d]], [[3ieq|3ieq]], [[3ike|3ike]], [[3p0z|3p0z]], [[3p10|3p10]], [[3mbm|3mbm]]</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ispF, BURPS1710b_2511 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=320372 Burkholderia pseudomallei 1710b])</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/2-C-methyl-D-erythritol_2,4-cyclodiphosphate_synthase 2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.6.1.12 4.6.1.12] </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=3qhd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3qhd OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3qhd RCSB], [http://www.ebi.ac.uk/pdbsum/3qhd PDBsum]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
As part of the Seattle Structural Genomics Center for Infectious Disease, we seek to enhance structural genomics with ligand-bound structure data which can serve as a blueprint for structure-based drug design. We have adapted fragment-based screening methods to our structural genomics pipeline to generate multiple ligand-bound structures of high priority drug targets from pathogenic organisms. In this study, we report fragment screening methods and structure determination results for 2C-methyl-D-erythritol-2,4-cyclo-diphosphate (MECP) synthase from Burkholderia pseudomallei, the gram-negative bacterium which causes melioidosis. Screening by nuclear magnetic resonance spectroscopy as well as crystal soaking followed by X-ray diffraction led to the identification of several small molecules which bind this enzyme in a critical metabolic pathway. A series of complex structures obtained with screening hits reveal distinct binding pockets and a range of small molecules which form complexes with the target. Additional soaks with these compounds further demonstrate a subset of fragments to only bind the protein when present in specific combinations. This ensemble of fragment-bound complexes illuminates several characteristics of MECP synthase, including a previously unknown binding surface external to the catalytic active site. These ligand-bound structures now serve to guide medicinal chemists and structural biologists in rational design of novel inhibitors for this enzyme.


==Function==
Leveraging structure determination with fragment screening for infectious disease drug targets: MECP synthase from Burkholderia pseudomallei.,Begley DW, Hartley RC, Davies DR, Edwards TE, Leonard JT, Abendroth J, Burris CA, Bhandari J, Myler PJ, Staker BL, Stewart LJ J Struct Funct Genomics. 2011 Jul;12(2):63-76. Epub 2011 Feb 26. PMID:21359640<ref>PMID:21359640</ref>
[[http://www.uniprot.org/uniprot/ISPF_BURP1 ISPF_BURP1]] Involved in the biosynthesis of isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP), two major building blocks of isoprenoid compounds. Catalyzes the conversion of 4-diphosphocytidyl-2-C-methyl-D-erythritol 2-phosphate (CDP-ME2P) to 2-C-methyl-D-erythritol 2,4-cyclodiphosphate (ME-CPP) with a corresponding release of cytidine 5-monophosphate (CMP) (By similarity).[HAMAP-Rule:MF_00107]


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[3qhd]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Burkholderia_pseudomallei_1710b Burkholderia pseudomallei 1710b]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3QHD OCA].
</div>


==See Also==
==See Also==
*[[MECDP synthase|MECDP synthase]]
*[[MECDP synthase|MECDP synthase]]
 
== References ==
==Reference==
<references/>
<ref group="xtra">PMID:021359640</ref><references group="xtra"/><references/>
__TOC__
</StructureSection>
[[Category: 2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase]]
[[Category: 2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase]]
[[Category: Burkholderia pseudomallei 1710b]]
[[Category: Burkholderia pseudomallei 1710b]]
[[Category: SSGCID, Seattle Structural Genomics Center for Infectious Disease.]]
[[Category: Structural genomic]]
[[Category: Cytidine]]
[[Category: Cytidine]]
[[Category: Fol795]]
[[Category: Fol795]]
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[[Category: Mep pathway]]
[[Category: Mep pathway]]
[[Category: Metal-binding]]
[[Category: Metal-binding]]
[[Category: Seattle structural genomics center for infectious disease]]
[[Category: Ssgcid]]
[[Category: Ssgcid]]