1x8d

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[[Image:1x8d.gif|left|200px]]
 
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==Crystal structure of E. coli YiiL protein containing L-rhamnose==
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The line below this paragraph, containing "STRUCTURE_1x8d", creates the "Structure Box" on the page.
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<StructureSection load='1x8d' size='340' side='right'caption='[[1x8d]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1x8d]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1X8D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1X8D FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.8&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=RNS:L-RHAMNOSE'>RNS</scene></td></tr>
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{{STRUCTURE_1x8d| PDB=1x8d | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1x8d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1x8d OCA], [https://pdbe.org/1x8d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1x8d RCSB], [https://www.ebi.ac.uk/pdbsum/1x8d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1x8d ProSAT]</span></td></tr>
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</table>
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'''Crystal structure of E. coli YiiL protein containing L-rhamnose'''
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== Function ==
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[https://www.uniprot.org/uniprot/RHAM_ECOLI RHAM_ECOLI] Involved in the anomeric conversion of L-rhamnose.<ref>PMID:15060078</ref>
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== Evolutionary Conservation ==
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==Overview==
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[[Image:Consurf_key_small.gif|200px|right]]
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The crystal structure of Escherichia coli rhamnose mutarotase (YiiL) is completely different from the previously reported structures of the Lactococcus lactis galactose mutarotase and the Bacillus subtilis RbsD (pyranase). YiiL exists as a locally asymmetric dimer, which is stabilized by an intermolecular beta-sheet, various hydrophobic interactions, and a cation-pi interaction with a salt-bridge. The protein folds of YiiL are similar to those of a Streptomyces coelicolor mono-oxygenase and a hypothetical Arabidopsis thaliana protein At3g17210. By assaying the enzymatic activity of six active-site mutants and by comparing the crystal structure-derived active site conformations of YiiL, RbsD, and a galactose mutarotase, we were able to define the amino acid residues required for catalysis and suggest a possible catalytic mechanism for YiiL. Although the active-site amino acid residues of YiiL (His, Tyr, and Trp) differ greatly from those of galactose mutarotase (His, Glu, and Asp), their geometries, which determine the structures of the preferred monosaccharide substrates, are conserved. In addition, the in vivo function of YiiL was assessed by constructing a mutant E.coli strain that carries a yiiL deletion. The presence of the yiiL gene is critical for efficient cell growth only when concentrations of l-rhamnose are limited.
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Check<jmol>
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<jmolCheckbox>
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==About this Structure==
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/x8/1x8d_consurf.spt"</scriptWhenChecked>
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1X8D is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1X8D OCA].
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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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==Reference==
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</jmolCheckbox>
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Structural insights into the monosaccharide specificity of Escherichia coli rhamnose mutarotase., Ryu KS, Kim JI, Cho SJ, Park D, Park C, Cheong HK, Lee JO, Choi BS, J Mol Biol. 2005 May 27;349(1):153-62. Epub 2005 Apr 7. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15876375 15876375]
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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/main_output.php?pdb_ID=1x8d ConSurf].
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<div style="clear:both"></div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Cho, S J.]]
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[[Category: Cho SJ]]
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[[Category: Choi, B S.]]
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[[Category: Choi BS]]
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[[Category: Kim, J I.]]
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[[Category: Kim JI]]
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[[Category: Lee, J O.]]
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[[Category: Lee JO]]
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[[Category: Park, C.]]
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[[Category: Park C]]
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[[Category: Park, D.]]
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[[Category: Park D]]
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[[Category: Ryu, K S.]]
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[[Category: Ryu KS]]
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[[Category: L-rhamnose]]
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[[Category: Mutarotase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 14:41:57 2008''
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Current revision

Crystal structure of E. coli YiiL protein containing L-rhamnose

PDB ID 1x8d

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