1ixr

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[[Image:1ixr.gif|left|200px]]
 
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{{Structure
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==RuvA-RuvB complex==
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|PDB= 1ixr |SIZE=350|CAPTION= <scene name='initialview01'>1ixr</scene>, resolution 3.3&Aring;
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<StructureSection load='1ixr' size='340' side='right'caption='[[1ixr]], [[Resolution|resolution]] 3.30&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER'>ANP</scene>
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<table><tr><td colspan='2'>[[1ixr]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1IXR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1IXR FirstGlance]. <br>
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|ACTIVITY= [http://en.wikipedia.org/wiki/Adenosinetriphosphatase Adenosinetriphosphatase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.1.3 3.6.1.3]
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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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|GENE= ruvA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=274 Thermus thermophilus]), ruvB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=274 Thermus thermophilus])
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC+ACID-ADENYLATE+ESTER'>ANP</scene></td></tr>
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}}
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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=1ixr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ixr OCA], [https://pdbe.org/1ixr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ixr RCSB], [https://www.ebi.ac.uk/pdbsum/1ixr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ixr ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/RUVA_THET8 RUVA_THET8] The RuvA-RuvB complex in the presence of ATP renatures cruciform structure in supercoiled DNA with palindromic sequence, indicating that it may promote strand exchange reactions in homologous recombination. RuvAB is a helicase that mediates the Holliday junction migration by localized denaturation and reannealing. RuvA stimulates, in the presence of DNA, the weak ATPase activity of RuvB (By similarity).
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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/ix/1ixr_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=1ixr 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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We present the X-ray structure of the RuvA-RuvB complex, which plays a crucial role in ATP-dependent branch migration. Two RuvA tetramers form the symmetric and closed octameric shell, where four RuvA domain IIIs spring out in the two opposite directions to be individually caught by a single RuvB. The binding of domain III deforms the protruding beta hairpin in the N-terminal domain of RuvB and thereby appears to induce a functional and less symmetric RuvB hexameric ring. The model of the RuvA-RuvB junction DNA ternary complex, constructed by fitting the X-ray structure into the averaged electron microscopic images of the RuvA-RuvB junction, appears to be more compatible with the branch migration mode of a fixed RuvA-RuvB interaction than with a rotational interaction mode.
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'''RuvA-RuvB complex'''
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Crystal structure of the RuvA-RuvB complex: a structural basis for the Holliday junction migrating motor machinery.,Yamada K, Miyata T, Tsuchiya D, Oyama T, Fujiwara Y, Ohnishi T, Iwasaki H, Shinagawa H, Ariyoshi M, Mayanagi K, Morikawa K Mol Cell. 2002 Sep;10(3):671-81. PMID:12408833<ref>PMID:12408833</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 1ixr" style="background-color:#fffaf0;"></div>
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==Overview==
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==See Also==
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We present the X-ray structure of the RuvA-RuvB complex, which plays a crucial role in ATP-dependent branch migration. Two RuvA tetramers form the symmetric and closed octameric shell, where four RuvA domain IIIs spring out in the two opposite directions to be individually caught by a single RuvB. The binding of domain III deforms the protruding beta hairpin in the N-terminal domain of RuvB and thereby appears to induce a functional and less symmetric RuvB hexameric ring. The model of the RuvA-RuvB junction DNA ternary complex, constructed by fitting the X-ray structure into the averaged electron microscopic images of the RuvA-RuvB junction, appears to be more compatible with the branch migration mode of a fixed RuvA-RuvB interaction than with a rotational interaction mode.
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*[[Helicase 3D structures|Helicase 3D structures]]
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== References ==
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==About this Structure==
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<references/>
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1IXR is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1IXR OCA].
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__TOC__
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</StructureSection>
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==Reference==
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[[Category: Large Structures]]
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Crystal structure of the RuvA-RuvB complex: a structural basis for the Holliday junction migrating motor machinery., Yamada K, Miyata T, Tsuchiya D, Oyama T, Fujiwara Y, Ohnishi T, Iwasaki H, Shinagawa H, Ariyoshi M, Mayanagi K, Morikawa K, Mol Cell. 2002 Sep;10(3):671-81. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12408833 12408833]
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[[Category: Adenosinetriphosphatase]]
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[[Category: Protein complex]]
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[[Category: Thermus thermophilus]]
[[Category: Thermus thermophilus]]
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[[Category: Ariyoshi, M.]]
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[[Category: Ariyoshi M]]
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[[Category: Fujiwara, Y.]]
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[[Category: Fujiwara Y]]
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[[Category: Iwasaki, H.]]
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[[Category: Iwasaki H]]
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[[Category: Mayanagi, K.]]
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[[Category: Mayanagi K]]
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[[Category: Miyata, T.]]
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[[Category: Miyata T]]
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[[Category: Morikawa, K.]]
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[[Category: Morikawa K]]
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[[Category: Ohnishi, T.]]
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[[Category: Ohnishi T]]
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[[Category: Oyama, T.]]
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[[Category: Oyama T]]
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[[Category: Shinagawa, H.]]
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[[Category: Shinagawa H]]
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[[Category: Tsuchiya, D.]]
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[[Category: Tsuchiya D]]
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[[Category: Yamada, K.]]
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[[Category: Yamada K]]
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[[Category: ANP]]
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[[Category: aaa-atpase domain]]
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[[Category: complex with nucleotide]]
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[[Category: heterooligomeric complex]]
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[[Category: octameric ruva]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 11:56:18 2008''
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Current revision

RuvA-RuvB complex

PDB ID 1ixr

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