3kmh
From Proteopedia
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| - | + | ==Crystal Structure of a Novel Sugar Isomerase from E. coli O157:H7== | |
| - | + | <StructureSection load='3kmh' size='340' side='right' caption='[[3kmh]], [[Resolution|resolution]] 1.58Å' scene=''> | |
| - | + | == Structural highlights == | |
| + | <table><tr><td colspan='2'>[[3kmh]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli_o157:h7 Escherichia coli o157:h7]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3KMH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3KMH FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=IPH:PHENOL'>IPH</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene></td></tr> | ||
| + | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr> | ||
| + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ECs5070, Z5688 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83334 Escherichia coli O157:H7])</td></tr> | ||
| + | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/D-lyxose_ketol-isomerase D-lyxose ketol-isomerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=5.3.1.15 5.3.1.15] </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=3kmh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3kmh OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3kmh RCSB], [http://www.ebi.ac.uk/pdbsum/3kmh 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/km/3kmh_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 == | ||
| + | Prokaryotes can use a variety of sugars as carbon sources in order to provide a selective survival advantage. The gene z5688 found in the pathogenic Escherichia coli O157:H7 encodes a "hypothetical" protein of unknown function. Sequence analysis identified the gene product as a putative member of the cupin superfamily of proteins, but no other functional information was known. We have determined the crystal structure of the Z5688 protein at 1.6 A resolution and identified the protein as a novel E. coli sugar isomerase (EcSI) through overall fold analysis and secondary-structure matching. Extensive substrate screening revealed that EcSI is capable of acting on d-lyxose and d-mannose. The complex structure of EcSI with fructose allowed the identification of key active-site residues, and mutagenesis confirmed their importance. The structure of EcSI also suggested a novel mechanism for substrate binding and product release in a cupin sugar isomerase. Supplementation of a nonpathogenic E. coli strain with EcSI enabled cell growth on the rare pentose d-lyxose. | ||
| - | + | Structure-based annotation of a novel sugar isomerase from the pathogenic E. coli O157:H7.,van Staalduinen LM, Park CS, Yeom SJ, Adams-Cioaba MA, Oh DK, Jia Z J Mol Biol. 2010 Sep 3;401(5):866-81. Epub 2010 Jul 6. PMID:20615418<ref>PMID:20615418</ref> | |
| - | + | ||
| - | == | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> |
| - | + | </div> | |
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
[[Category: D-lyxose ketol-isomerase]] | [[Category: D-lyxose ketol-isomerase]] | ||
[[Category: Escherichia coli o157:h7]] | [[Category: Escherichia coli o157:h7]] | ||
| - | [[Category: | + | [[Category: Structural genomic]] |
| - | [[Category: Jia, Z | + | [[Category: Jia, Z]] |
| - | [[Category: Staalduinen, L M.van | + | [[Category: Staalduinen, L M.van]] |
[[Category: Bsgi]] | [[Category: Bsgi]] | ||
[[Category: Cupin beta-barrel]] | [[Category: Cupin beta-barrel]] | ||
[[Category: Isomerase]] | [[Category: Isomerase]] | ||
| - | [[Category: Montreal-kingston bacterial structural genomics initiative]] | ||
| - | [[Category: Structural genomic]] | ||
Revision as of 17:43, 18 December 2014
Crystal Structure of a Novel Sugar Isomerase from E. coli O157:H7
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