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1nr4

From Proteopedia

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(New page: 200px<br /> <applet load="1nr4" size="450" color="white" frame="true" align="right" spinBox="true" caption="1nr4, resolution 1.72&Aring;" /> '''High resolution cry...)
Current revision (06:09, 3 April 2024) (edit) (undo)
 
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[[Image:1nr4.gif|left|200px]]<br />
 
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<applet load="1nr4" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1nr4, resolution 1.72&Aring;" />
 
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'''High resolution crystal structures of thymus and activation-regulated chemokine'''<br />
 
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==Overview==
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==High resolution crystal structures of thymus and activation-regulated chemokine==
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Thymus and activation-regulated chemokine (TARC) is a CC chemokine that is, mainly expressed in the thymus. TARC interacts primarily with the CCR4, receptor and to a lesser extent with the CCR8 receptor. The structures of, TARC have been solved by molecular replacement in two space groups, triclinic (P1) and tetragonal (P4(1)), and refined to resolutions of 1.72, and 2.1 A, respectively, with R factors of 19.8% (R(free) = 24.1%) and, 19.8% (R(free) = 27.7%), respectively. The search model originated from, the crystal structure of another chemokine, RANTES, and proved to be only, modestly similar to the refined structure of TARC. Whereas the tetragonal, structure was easily solved using the program AMoRe, solution of the, triclinic structure proved to be quite challenging and was obtained by, combining the results from four different molecular-replacement programs, (AMoRe, CNS, BEAST and EPMR), with subsequent extension of the gathered, information. The tertiary structure of TARC is similar to that of other CC, chemokines, with a three-stranded antiparallel beta-sheet flanked by a, C-terminal helix. Both quaternary structures consist of dimers, which in, the triclinic crystals pack further into tetramers. The TARC dimers are, similar to those observed previously in the crystal structures of both, MCP-1 and RANTES.
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<StructureSection load='1nr4' size='340' side='right'caption='[[1nr4]], [[Resolution|resolution]] 1.72&Aring;' scene=''>
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== Structural highlights ==
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==About this Structure==
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<table><tr><td colspan='2'>[[1nr4]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NR4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NR4 FirstGlance]. <br>
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1NR4 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/ ] with SO4 as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1NR4 OCA].
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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]] 1.72&#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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==Reference==
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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=1nr4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nr4 OCA], [https://pdbe.org/1nr4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1nr4 RCSB], [https://www.ebi.ac.uk/pdbsum/1nr4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1nr4 ProSAT]</span></td></tr>
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Structures of thymus and activation-regulated chemokine (TARC)., Asojo OA, Boulegue C, Hoover DM, Lu W, Lubkowski J, Acta Crystallogr D Biol Crystallogr. 2003 Jul;59(Pt 7):1165-73. Epub 2003, Jun 27. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=12832759 12832759]
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</table>
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[[Category: Single protein]]
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== Function ==
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[[Category: Asojo, O.A.]]
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[https://www.uniprot.org/uniprot/CCL17_HUMAN CCL17_HUMAN] Chemotactic factor for T-lymphocytes but not monocytes or granulocytes. May play a role in T-cell development in thymus and in trafficking and activation of mature T-cells. Binds to CCR4.<ref>PMID:10540332</ref>
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[[Category: Boulegue, C.]]
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== Evolutionary Conservation ==
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[[Category: Hoover, D.M.]]
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[[Image:Consurf_key_small.gif|200px|right]]
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[[Category: Lu, W.]]
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Check<jmol>
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[[Category: Lubkowski, J.]]
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<jmolCheckbox>
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[[Category: SO4]]
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/nr/1nr4_consurf.spt"</scriptWhenChecked>
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[[Category: cc-chemokine]]
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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[[Category: chemokine]]
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<text>to colour the structure by Evolutionary Conservation</text>
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[[Category: chemotaxis]]
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</jmolCheckbox>
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[[Category: cytokine]]
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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=1nr4 ConSurf].
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[[Category: tarc]]
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<div style="clear:both"></div>
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== References ==
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Mon Nov 12 18:24:18 2007''
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Homo sapiens]]
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[[Category: Large Structures]]
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[[Category: Asojo OA]]
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[[Category: Boulegue C]]
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[[Category: Hoover DM]]
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[[Category: Lu W]]
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[[Category: Lubkowski J]]

Current revision

High resolution crystal structures of thymus and activation-regulated chemokine

PDB ID 1nr4

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