1oy0

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[[Image:1oy0.png|left|200px]]
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==The crystal Structure of the First Enzyme of Pantothenate Biosynthetic Pathway, Ketopantoate Hydroxymethyltransferase from Mycobacterium Tuberculosis Shows a Decameric Assembly and Terminal Helix-Swapping==
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<StructureSection load='1oy0' size='340' side='right' caption='[[1oy0]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1oy0]] is a 5 chain structure with sequence from [http://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OY0 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1OY0 FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene><br>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PANB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1773 Mycobacterium tuberculosis])</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/3-methyl-2-oxobutanoate_hydroxymethyltransferase 3-methyl-2-oxobutanoate hydroxymethyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.1.2.11 2.1.2.11] </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=1oy0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1oy0 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1oy0 RCSB], [http://www.ebi.ac.uk/pdbsum/1oy0 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/oy/1oy0_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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Ketopantoate hydroxymethyltransferase (KPHMT) catalyzes the first committed step in the biosynthesis of pantothenate, which is a precursor to coenzyme A and is required for penicillin biosynthesis. The crystal structure of KPHMT from Mycobacterium tuberculosis was determined by the single anomalous substitution (SAS) method at 2.8 A resolution. KPHMT adopts a structure that is a variation on the (beta/alpha) barrel fold, with a metal binding site proximal to the presumed catalytic site. The protein forms a decameric complex, with subunits in opposing pentameric rings held together by a swapping of their C-terminal alpha helices. The structure reveals KPHMT's membership in a small, recently discovered group of (beta/alpha) barrel enzymes that employ domain swapping to form a variety of oligomeric assemblies. The apparent conservation of certain detailed structural characteristics suggests that KPHMT is distantly related by divergent evolution to enzymes in unrelated pathways, including isocitrate lyase and phosphoenolpyruvate mutase.
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{{STRUCTURE_1oy0| PDB=1oy0 | SCENE= }}
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The crystal structure of the first enzyme in the pantothenate biosynthetic pathway, ketopantoate hydroxymethyltransferase, from M tuberculosis.,Chaudhuri BN, Sawaya MR, Kim CY, Waldo GS, Park MS, Terwilliger TC, Yeates TO Structure. 2003 Jul;11(7):753-64. PMID:12842039<ref>PMID:12842039</ref>
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===The crystal Structure of the First Enzyme of Pantothenate Biosynthetic Pathway, Ketopantoate Hydroxymethyltransferase from Mycobacterium Tuberculosis Shows a Decameric Assembly and Terminal Helix-Swapping===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_12842039}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[1oy0]] is a 5 chain structure with sequence from [http://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OY0 OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:012842039</ref><references group="xtra"/>
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[[Category: 3-methyl-2-oxobutanoate hydroxymethyltransferase]]
[[Category: 3-methyl-2-oxobutanoate hydroxymethyltransferase]]
[[Category: Mycobacterium tuberculosis]]
[[Category: Mycobacterium tuberculosis]]

Revision as of 00:03, 29 September 2014

The crystal Structure of the First Enzyme of Pantothenate Biosynthetic Pathway, Ketopantoate Hydroxymethyltransferase from Mycobacterium Tuberculosis Shows a Decameric Assembly and Terminal Helix-Swapping

1oy0, resolution 2.80Å

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