2grx

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[[Image:2grx.png|left|200px]]
 
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==Crystal structure of TonB in complex with FhuA, E. coli outer membrane receptor for ferrichrome==
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The line below this paragraph, containing "STRUCTURE_2grx", creates the "Structure Box" on the page.
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<StructureSection load='2grx' size='340' side='right'caption='[[2grx]], [[Resolution|resolution]] 3.30&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'>[[2grx]] 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=2GRX OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2GRX 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]] 3.3&#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=DAO:LAURIC+ACID'>DAO</scene>, <scene name='pdbligand=DPO:DIPHOSPHATE'>DPO</scene>, <scene name='pdbligand=EAP:2-AMINO-VINYL-PHOSPHATE'>EAP</scene>, <scene name='pdbligand=FCI:FERRICROCIN-IRON'>FCI</scene>, <scene name='pdbligand=FTT:3-HYDROXY-TETRADECANOIC+ACID'>FTT</scene>, <scene name='pdbligand=GCN:3-DEOXY-D-GLUCOSAMINE'>GCN</scene>, <scene name='pdbligand=GMH:L-GLYCERO-D-MANNO-HEPTOPYRANOSE'>GMH</scene>, <scene name='pdbligand=KDO:3-DEOXY-D-MANNO-OCT-2-ULOSONIC+ACID'>KDO</scene>, <scene name='pdbligand=MYR:MYRISTIC+ACID'>MYR</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></td></tr>
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{{STRUCTURE_2grx| PDB=2grx | 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=2grx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2grx OCA], [https://pdbe.org/2grx PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2grx RCSB], [https://www.ebi.ac.uk/pdbsum/2grx PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2grx ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/FHUA_ECOLI FHUA_ECOLI] This receptor binds the ferrichrome-iron ligand. It interacts with the TonB protein, which is responsible for energy coupling of the ferrichrome-promoted iron transport system. Acts as a receptor for bacteriophage T5 as well as T1, phi80 and colicin M. Binding of T5 triggers the opening of a high conductance ion channel. Can also transport the antibiotic albomycin.<ref>PMID:8617231</ref>
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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/gr/2grx_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=2grx 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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The cytoplasmic membrane protein TonB spans the periplasm of the Gram-negative bacterial cell envelope, contacts cognate outer membrane receptors, and facilitates siderophore transport. The outer membrane receptor FhuA from Escherichia coli mediates TonB-dependent import of ferrichrome. We report the 3.3 angstrom resolution crystal structure of the TonB carboxyl-terminal domain in complex with FhuA. TonB contacts stabilize FhuA's amino-terminal residues, including those of the consensus Ton box sequence that form an interprotein beta sheet with TonB through strand exchange. The highly conserved TonB residue arginine-166 is oriented to form multiple contacts with the FhuA cork, the globular domain enclosed by the beta barrel.
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===Crystal structure of TonB in complex with FhuA, E. coli outer membrane receptor for ferrichrome===
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Structure of TonB in complex with FhuA, E. coli outer membrane receptor.,Pawelek PD, Croteau N, Ng-Thow-Hing C, Khursigara CM, Moiseeva N, Allaire M, Coulton JW Science. 2006 Jun 2;312(5778):1399-402. PMID:16741125<ref>PMID:16741125</ref>
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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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<div class="pdbe-citations 2grx" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_16741125}}, adds the Publication Abstract to the page
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*[[Ferric hydroxamate uptake receptor|Ferric hydroxamate uptake receptor]]
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(as it appears on PubMed at http://www.pubmed.gov), where 16741125 is the PubMed ID number.
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*[[TonB|TonB]]
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== References ==
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{{ABSTRACT_PUBMED_16741125}}
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<references/>
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__TOC__
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==About this Structure==
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</StructureSection>
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[[2grx]] is a 4 chain structure with 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=2GRX OCA].
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==Reference==
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<ref group="xtra">PMID:16741125</ref><references group="xtra"/>
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[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
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[[Category: Allaire, M.]]
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[[Category: Large Structures]]
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[[Category: Coulton, J W.]]
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[[Category: Allaire M]]
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[[Category: Pawelek, P D.]]
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[[Category: Coulton JW]]
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[[Category: Pawelek PD]]

Current revision

Crystal structure of TonB in complex with FhuA, E. coli outer membrane receptor for ferrichrome

PDB ID 2grx

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