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| | <StructureSection load='1ixr' size='340' side='right'caption='[[1ixr]], [[Resolution|resolution]] 3.30Å' scene=''> | | <StructureSection load='1ixr' size='340' side='right'caption='[[1ixr]], [[Resolution|resolution]] 3.30Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1ixr]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/"flavobacterium_thermophilum"_yoshida_and_oshima_1971 "flavobacterium thermophilum" yoshida and oshima 1971]. 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> | + | <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> |
| - | </td></tr><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> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.3Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1hqc|1hqc]], [[1ixs|1ixs]]</div></td></tr>
| + | <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> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ruvA ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=274 "Flavobacterium thermophilum" Yoshida and Oshima 1971]), ruvB ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=274 "Flavobacterium thermophilum" Yoshida and Oshima 1971])</td></tr> | + | |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Adenosinetriphosphatase Adenosinetriphosphatase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.1.3 3.6.1.3] </span></td></tr>
| + | |
| | <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> | | <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> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[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). [[https://www.uniprot.org/uniprot/RUVB_THET8 RUVB_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. RuvB is a Mg(2+)-dependent, DNA-dependent ATPase with an equal preference for supercoiled and linear duplex DNA. It can promote Holliday junction migration alone.<ref>PMID:10485292</ref>
| + | [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). |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Flavobacterium thermophilum yoshida and oshima 1971]] | |
| - | [[Category: Adenosinetriphosphatase]] | |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Ariyoshi, M]] | + | [[Category: Thermus thermophilus]] |
| - | [[Category: Fujiwara, Y]] | + | [[Category: Ariyoshi M]] |
| - | [[Category: Iwasaki, H]] | + | [[Category: Fujiwara Y]] |
| - | [[Category: Mayanagi, K]] | + | [[Category: Iwasaki H]] |
| - | [[Category: Miyata, T]] | + | [[Category: Mayanagi K]] |
| - | [[Category: Morikawa, K]] | + | [[Category: Miyata T]] |
| - | [[Category: Ohnishi, T]] | + | [[Category: Morikawa K]] |
| - | [[Category: Oyama, T]] | + | [[Category: Ohnishi T]] |
| - | [[Category: Shinagawa, H]] | + | [[Category: Oyama T]] |
| - | [[Category: Tsuchiya, D]] | + | [[Category: Shinagawa H]] |
| - | [[Category: Yamada, K]] | + | [[Category: Tsuchiya D]] |
| - | [[Category: Aaa-atpase domain]]
| + | [[Category: Yamada K]] |
| - | [[Category: Complex with nucleotide]]
| + | |
| - | [[Category: Heterooligomeric complex]]
| + | |
| - | [[Category: Hydrolase]]
| + | |
| - | [[Category: Octameric ruva]]
| + | |
| Structural highlights
Function
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).
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
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.
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[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Yamada K, Miyata T, Tsuchiya D, Oyama T, Fujiwara Y, Ohnishi T, Iwasaki H, Shinagawa H, Ariyoshi M, Mayanagi K, Morikawa K. Crystal structure of the RuvA-RuvB complex: a structural basis for the Holliday junction migrating motor machinery. Mol Cell. 2002 Sep;10(3):671-81. PMID:12408833
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