1e9r

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[[Image:1e9r.jpg|left|200px]]
 
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==Bacterial conjugative coupling protein TrwBdeltaN70. Trigonal form in complex with sulphate.==
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The line below this paragraph, containing "STRUCTURE_1e9r", creates the "Structure Box" on the page.
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<StructureSection load='1e9r' size='340' side='right'caption='[[1e9r]], [[Resolution|resolution]] 2.40&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'>[[1e9r]] is a 6 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=1E9R OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1E9R 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]] 2.4&#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=SO4:SULFATE+ION'>SO4</scene></td></tr>
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{{STRUCTURE_1e9r| PDB=1e9r | 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=1e9r FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1e9r OCA], [https://pdbe.org/1e9r PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1e9r RCSB], [https://www.ebi.ac.uk/pdbsum/1e9r PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1e9r ProSAT]</span></td></tr>
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</table>
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'''BACTERIAL CONJUGATIVE COUPLING PROTEIN TRWBDELTAN70. TRIGONAL FORM IN COMPLEX WITH SULPHATE.'''
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== Function ==
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[https://www.uniprot.org/uniprot/Q04230_ECOLX Q04230_ECOLX]
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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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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/e9/1e9r_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=1e9r 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 ==
The transfer of DNA across membranes and between cells is a central biological process; however, its molecular mechanism remains unknown. In prokaryotes, trans-membrane passage by bacterial conjugation, is the main route for horizontal gene transfer. It is the means for rapid acquisition of new genetic information, including antibiotic resistance by pathogens. Trans-kingdom gene transfer from bacteria to plants or fungi and even bacterial sporulation are special cases of conjugation. An integral membrane DNA-binding protein, called TrwB in the Escherichia coli R388 conjugative system, is essential for the conjugation process. This large multimeric protein is responsible for recruiting the relaxosome DNA-protein complex, and participates in the transfer of a single DNA strand during cell mating. Here we report the three-dimensional structure of a soluble variant of TrwB. The molecule consists of two domains: a nucleotide-binding domain of alpha/beta topology, reminiscent of RecA and DNA ring helicases, and an all-alpha domain. Six equivalent protein monomers associate to form an almost spherical quaternary structure that is strikingly similar to F1-ATPase. A central channel, 20 A in width, traverses the hexamer.
The transfer of DNA across membranes and between cells is a central biological process; however, its molecular mechanism remains unknown. In prokaryotes, trans-membrane passage by bacterial conjugation, is the main route for horizontal gene transfer. It is the means for rapid acquisition of new genetic information, including antibiotic resistance by pathogens. Trans-kingdom gene transfer from bacteria to plants or fungi and even bacterial sporulation are special cases of conjugation. An integral membrane DNA-binding protein, called TrwB in the Escherichia coli R388 conjugative system, is essential for the conjugation process. This large multimeric protein is responsible for recruiting the relaxosome DNA-protein complex, and participates in the transfer of a single DNA strand during cell mating. Here we report the three-dimensional structure of a soluble variant of TrwB. The molecule consists of two domains: a nucleotide-binding domain of alpha/beta topology, reminiscent of RecA and DNA ring helicases, and an all-alpha domain. Six equivalent protein monomers associate to form an almost spherical quaternary structure that is strikingly similar to F1-ATPase. A central channel, 20 A in width, traverses the hexamer.
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==About this Structure==
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The bacterial conjugation protein TrwB resembles ring helicases and F1-ATPase.,Gomis-Ruth FX, Moncalian G, Perez-Luque R, Gonzalez A, Cabezon E, de la Cruz F, Coll M Nature. 2001 Feb 1;409(6820):637-41. PMID:11214325<ref>PMID:11214325</ref>
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1E9R 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=1E9R 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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The bacterial conjugation protein TrwB resembles ring helicases and F1-ATPase., Gomis-Ruth FX, Moncalian G, Perez-Luque R, Gonzalez A, Cabezon E, de la Cruz F, Coll M, Nature. 2001 Feb 1;409(6820):637-41. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11214325 11214325]
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</div>
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<div class="pdbe-citations 1e9r" 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: Escherichia coli]]
[[Category: Escherichia coli]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Cabezon, E.]]
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[[Category: Cabezon E]]
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[[Category: Coll, M.]]
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[[Category: Coll M]]
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[[Category: Cruz, F De La.]]
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[[Category: Gomis-Rueth FX]]
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[[Category: Gomis-Rueth, F X.]]
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[[Category: Moncalian G]]
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[[Category: Moncalian, G.]]
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[[Category: De la Cruz F]]
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[[Category: Bacterial conjugation]]
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[[Category: Coupling protein]]
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[[Category: F1-atpase-like quaternary structure]]
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[[Category: Ring helicase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 14:50:37 2008''
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Current revision

Bacterial conjugative coupling protein TrwBdeltaN70. Trigonal form in complex with sulphate.

PDB ID 1e9r

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