1x2i

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[[Image:1x2i.gif|left|200px]]
 
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==Crystal Structure Of Archaeal Xpf/Mus81 Homolog, Hef From Pyrococcus Furiosus, Helix-hairpin-helix Domain==
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The line below this paragraph, containing "STRUCTURE_1x2i", creates the "Structure Box" on the page.
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<StructureSection load='1x2i' size='340' side='right'caption='[[1x2i]], [[Resolution|resolution]] 1.45&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'>[[1x2i]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Pyrococcus_furiosus Pyrococcus furiosus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1X2I OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1X2I 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]] 1.45&#8491;</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=1x2i FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1x2i OCA], [https://pdbe.org/1x2i PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1x2i RCSB], [https://www.ebi.ac.uk/pdbsum/1x2i PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1x2i ProSAT]</span></td></tr>
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{{STRUCTURE_1x2i| PDB=1x2i | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/Q8TZH8_PYRFU Q8TZH8_PYRFU]
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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/x2/1x2i_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=1x2i ConSurf].
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<div style="clear:both"></div>
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'''Crystal Structure Of Archaeal Xpf/Mus81 Homolog, Hef From Pyrococcus Furiosus, Helix-hairpin-helix Domain'''
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==See Also==
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*[[Helicase 3D structures|Helicase 3D structures]]
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__TOC__
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==Overview==
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</StructureSection>
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XPF/Rad1/Mus81/Hef proteins recognize and cleave branched DNA structures. XPF and Rad1 proteins cleave the 5' side of nucleotide excision repair bubble, while Mus81 and Hef cleave similar sites of the nicked Holliday junction, fork, or flap structure. These proteins all function as dimers and consist of catalytic and helix-hairpin-helix DNA binding (HhH) domains. We have determined the crystal structure of the HhH domain of Pyrococcus furiosus Hef nuclease (HefHhH), which revealed the distinct mode of protein dimerization. Our structural and biochemical analyses also showed that each of the catalytic and HhH domains binds to distinct regions within the fork-structured DNA: each HhH domain from two separate subunits asymmetrically binds to the arm region, while the catalytic domain binds near the junction center. Upon binding to DNA, Hef nuclease disrupts base pairs near the cleavage site. It is most likely that this bipartite binding mode is conserved in the XPF/Rad1/Mus81 nuclease family.
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[[Category: Large Structures]]
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==About this Structure==
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1X2I is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Pyrococcus_furiosus Pyrococcus furiosus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1X2I OCA].
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==Reference==
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Structural and functional analyses of an archaeal XPF/Rad1/Mus81 nuclease: asymmetric DNA binding and cleavage mechanisms., Nishino T, Komori K, Ishino Y, Morikawa K, Structure. 2005 Aug;13(8):1183-92. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16084390 16084390]
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[[Category: Pyrococcus furiosus]]
[[Category: Pyrococcus furiosus]]
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[[Category: Single protein]]
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[[Category: Ishino Y]]
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[[Category: Ishino, Y.]]
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[[Category: Komori K]]
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[[Category: Komori, K.]]
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[[Category: Morikawa K]]
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[[Category: Morikawa, K.]]
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[[Category: Nishino T]]
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[[Category: Nishino, T.]]
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[[Category: Alpha helix]]
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[[Category: Helix-hairpin-helix dna binding domain]]
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[[Category: Homodimer]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 14:26:37 2008''
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Current revision

Crystal Structure Of Archaeal Xpf/Mus81 Homolog, Hef From Pyrococcus Furiosus, Helix-hairpin-helix Domain

PDB ID 1x2i

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