2hxw

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(New page: 200px<br /><applet load="2hxw" size="350" color="white" frame="true" align="right" spinBox="true" caption="2hxw, resolution 1.60&Aring;" /> '''Crystal Structure of...)
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[[Image:2hxw.jpg|left|200px]]<br /><applet load="2hxw" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="2hxw, resolution 1.60&Aring;" />
 
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'''Crystal Structure of Peb3 from Campylobacter jejuni'''<br />
 
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==Overview==
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==Crystal Structure of Peb3 from Campylobacter jejuni==
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Campylobacter jejuni is unusual among bacteria in possessing a, eukaryotic-like system for N-linked protein glycosylation at Asn residues, in sequons of the type Asp/Glu-Xaa-Asn-Xaa-Ser/Thr. However, little is, known about the structural context of the glycosylated sequons, limiting, the design of novel recombinant glycoproteins. To obtain more information, on sequon structure, we have determined the crystal structure of the PEB3, (Cj0289c) dimer. PEB3 has the class II periplasmic-binding protein fold, with each monomer having two domains with a ligand-binding site containing, citrate located between them, and overall resembles molybdate- and, sulfate-binding proteins. The sequon around Asn90 is located within a, surface-exposed loop joining two structural elements. The three key, residues are well exposed on the surface; hence, they may be accessible to, the PglB oligosaccharyltransferase in the folded state.
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<StructureSection load='2hxw' size='340' side='right'caption='[[2hxw]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2hxw]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Campylobacter_jejuni Campylobacter jejuni]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HXW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2HXW 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]] 1.6&#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=FLC:CITRATE+ANION'>FLC</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
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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=2hxw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hxw OCA], [https://pdbe.org/2hxw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2hxw RCSB], [https://www.ebi.ac.uk/pdbsum/2hxw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2hxw ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/Q0PBL7_CAMJE Q0PBL7_CAMJE]
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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/hx/2hxw_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=2hxw 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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Campylobacter jejuni is unusual among bacteria in possessing a eukaryotic-like system for N-linked protein glycosylation at Asn residues in sequons of the type Asp/Glu-Xaa-Asn-Xaa-Ser/Thr. However, little is known about the structural context of the glycosylated sequons, limiting the design of novel recombinant glycoproteins. To obtain more information on sequon structure, we have determined the crystal structure of the PEB3 (Cj0289c) dimer. PEB3 has the class II periplasmic-binding protein fold, with each monomer having two domains with a ligand-binding site containing citrate located between them, and overall resembles molybdate- and sulfate-binding proteins. The sequon around Asn90 is located within a surface-exposed loop joining two structural elements. The three key residues are well exposed on the surface; hence, they may be accessible to the PglB oligosaccharyltransferase in the folded state.
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==About this Structure==
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Structural context for protein N-glycosylation in bacteria: The structure of PEB3, an adhesin from Campylobacter jejuni.,Rangarajan ES, Bhatia S, Watson DC, Munger C, Cygler M, Matte A, Young NM Protein Sci. 2007 May;16(5):990-5. PMID:17456748<ref>PMID:17456748</ref>
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2HXW is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Campylobacter_jejuni Campylobacter jejuni] with <scene name='pdbligand=FLC:'>FLC</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HXW 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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Structural context for protein N-glycosylation in bacteria: The structure of PEB3, an adhesin from Campylobacter jejuni., Rangarajan ES, Bhatia S, Watson DC, Munger C, Cygler M, Matte A, Young NM, Protein Sci. 2007 May;16(5):990-5. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=17456748 17456748]
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</div>
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<div class="pdbe-citations 2hxw" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Campylobacter jejuni]]
[[Category: Campylobacter jejuni]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: BSGI, Montreal-Kingston.Bacterial.Structural.Genomics.Initiative.]]
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[[Category: Bhatia S]]
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[[Category: Bhatia, S.]]
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[[Category: Cygler M]]
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[[Category: Cygler, M.]]
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[[Category: Matte A]]
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[[Category: Matte, A.]]
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[[Category: Munger C]]
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[[Category: Munger, C.]]
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[[Category: Rangarajan ES]]
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[[Category: Rangarajan, E.S.]]
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[[Category: Watson DC]]
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[[Category: Watson, D.C.]]
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[[Category: Young NM]]
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[[Category: Young, N.M.]]
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[[Category: FLC]]
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[[Category: bsgi]]
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[[Category: montreal-kingston bacterial structural genomics initiative]]
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[[Category: n-glycosylation]]
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[[Category: peb3]]
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[[Category: periplasmic binding protein]]
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[[Category: structural genomics]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jan 23 15:27:19 2008''
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Current revision

Crystal Structure of Peb3 from Campylobacter jejuni

PDB ID 2hxw

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