2hke

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{{STRUCTURE_2hke| PDB=2hke | SCENE= }}
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==Mevalonate diphosphate decarboxylase from Trypanosoma brucei==
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===Mevalonate diphosphate decarboxylase from Trypanosoma brucei===
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<StructureSection load='2hke' size='340' side='right' caption='[[2hke]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
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{{ABSTRACT_PUBMED_17583736}}
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2hke]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Trypanosoma_(trypanozoon)_brucei Trypanosoma (trypanozoon) brucei]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HKE OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2HKE FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene><br>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2hk2|2hk2]], [[2hk3|2hk3]]</td></tr>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">mdd (CDS:Tb10.05.0010) ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=5691 Trypanosoma (Trypanozoon) brucei])</td></tr>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Diphosphomevalonate_decarboxylase Diphosphomevalonate decarboxylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.1.1.33 4.1.1.33] </span></td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2hke FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hke OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2hke RCSB], [http://www.ebi.ac.uk/pdbsum/2hke PDBsum]</span></td></tr>
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<table>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hk/2hke_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Mevalonate diphosphate decarboxylase (MDD) catalyzes the ATP-dependent decarboxylation of mevalonate 5-diphosphate (MDP) to form isopentenyl pyrophosphate, a ubiquitous precursor for isoprenoid biosynthesis. MDD is a poorly understood component of this important metabolic pathway. Complementation of a temperature-sensitive yeast mutant by the putative mdd genes of Trypanosoma brucei and Staphylococcus aureus provides proof-of-function. Crystal structures of MDD from T. brucei (TbMDD, at 1.8 A resolution) and S. aureus (SaMDD, in two distinct crystal forms, each diffracting to 2.3 A resolution) have been determined. Gel-filtration chromatography and analytical ultracentrifugation experiments indicate that TbMDD is predominantly monomeric in solution while SaMDD is dimeric. The new crystal structures and comparison with that of the yeast Saccharomyces cerevisiae enzyme (ScMDD) reveal the structural basis for this variance in quaternary structure. The presence of an ordered sulfate in the structure of TbMDD reveals for the first time details of a ligand binding in the MDD active site and, in conjunction with well-ordered water molecules, comparisons with the related enzyme mevalonate kinase, structural and biochemical data derived on ScMDD and SaMDD, allows us to model a ternary complex with MDP and ATP. This model facilitates discussion of the molecular determinants of substrate recognition and contributions made by specific residues to the enzyme mechanism.
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==About this Structure==
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Crystal structures of Trypanosoma brucei and Staphylococcus aureus mevalonate diphosphate decarboxylase inform on the determinants of specificity and reactivity.,Byres E, Alphey MS, Smith TK, Hunter WN J Mol Biol. 2007 Aug 10;371(2):540-53. Epub 2007 Jun 4. PMID:17583736<ref>PMID:17583736</ref>
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[[2hke]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Trypanosoma_(trypanozoon)_brucei Trypanosoma (trypanozoon) brucei]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HKE OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<ref group="xtra">PMID:017583736</ref><references group="xtra"/><references/>
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</div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Diphosphomevalonate decarboxylase]]
[[Category: Diphosphomevalonate decarboxylase]]
[[Category: Alphey, M S.]]
[[Category: Alphey, M S.]]

Revision as of 11:46, 3 October 2014

Mevalonate diphosphate decarboxylase from Trypanosoma brucei

2hke, resolution 1.80Å

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