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1g9r

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[[Image:1g9r.jpg|left|200px]]
 
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==CRYSTAL STRUCTURE OF GALACTOSYLTRANSFERASE LGTC IN COMPLEX WITH MN AND UDP-2F-GALACTOSE==
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The line below this paragraph, containing "STRUCTURE_1g9r", creates the "Structure Box" on the page.
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<StructureSection load='1g9r' size='340' side='right'caption='[[1g9r]], [[Resolution|resolution]] 2.00&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'>[[1g9r]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Neisseria_meningitidis Neisseria meningitidis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1G9R OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1G9R FirstGlance]. <br>
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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]] 2&#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=ACY:ACETIC+ACID'>ACY</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene>, <scene name='pdbligand=UPF:URIDINE-5-DIPHOSPHATE-2-DEOXY-2-FLUOROGALACTOSE'>UPF</scene></td></tr>
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{{STRUCTURE_1g9r| PDB=1g9r | 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=1g9r FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1g9r OCA], [https://pdbe.org/1g9r PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1g9r RCSB], [https://www.ebi.ac.uk/pdbsum/1g9r PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1g9r ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/Q93EK7_NEIME Q93EK7_NEIME]
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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/g9/1g9r_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/main_output.php?pdb_ID=1g9r ConSurf].
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<div style="clear:both"></div>
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'''CRYSTAL STRUCTURE OF GALACTOSYLTRANSFERASE LGTC IN COMPLEX WITH MN AND UDP-2F-GALACTOSE'''
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==See Also==
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*[[Glycosyltransferase 3D structures|Glycosyltransferase 3D structures]]
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__TOC__
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==Overview==
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</StructureSection>
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Many bacterial pathogens express lipooligosaccharides that mimic human cell surface glycoconjugates, enabling them to attach to host receptors and to evade the immune response. In Neisseria meningitidis, the galactosyltransferase LgtC catalyzes a key step in the biosynthesis of lipooligosaccharide structure by transferring alpha-d-galactose from UDP-galactose to a terminal lactose. The product retains the configuration of the donor sugar glycosidic bond; LgtC is thus a retaining glycosyltranferase. We report the 2 A crystal structures of the complex of LgtC with manganese and UDP 2-deoxy-2-fluoro-galactose (a donor sugar analog) in the presence and absence of the acceptor sugar analog 4'-deoxylactose. The structures, together with results from site-directed mutagenesis and kinetic analysis, give valuable insights into the unique catalytic mechanism and, as the first structure of a glycosyltransferase in complex with both the donor and acceptor sugars, provide a starting point for inhibitor design.
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[[Category: Large Structures]]
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==About this Structure==
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1G9R is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Neisseria_meningitidis Neisseria meningitidis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1G9R OCA].
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==Reference==
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Crystal structure of the retaining galactosyltransferase LgtC from Neisseria meningitidis in complex with donor and acceptor sugar analogs., Persson K, Ly HD, Dieckelmann M, Wakarchuk WW, Withers SG, Strynadka NC, Nat Struct Biol. 2001 Feb;8(2):166-75. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11175908 11175908]
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[[Category: Neisseria meningitidis]]
[[Category: Neisseria meningitidis]]
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[[Category: Single protein]]
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[[Category: Diekelmann M]]
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[[Category: Diekelmann, M.]]
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[[Category: Hoa DL]]
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[[Category: Hoa, D L.]]
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[[Category: Persson K]]
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[[Category: Persson, K.]]
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[[Category: Strynadka NCJ]]
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[[Category: Strynadka, N C.J.]]
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[[Category: Wakarchuk WW]]
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[[Category: Wakarchuk, W W.]]
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[[Category: Withers SG]]
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[[Category: Withers, S G.]]
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[[Category: Alpha-beta structure]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 17:19:34 2008''
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Current revision

CRYSTAL STRUCTURE OF GALACTOSYLTRANSFERASE LGTC IN COMPLEX WITH MN AND UDP-2F-GALACTOSE

PDB ID 1g9r

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