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2z35

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(New page: 200px<br /><applet load="2z35" size="350" color="white" frame="true" align="right" spinBox="true" caption="2z35, resolution 2.2&Aring;" /> '''Crystal structure of ...)
Current revision (11:56, 29 July 2020) (edit) (undo)
 
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[[Image:2z35.gif|left|200px]]<br /><applet load="2z35" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="2z35, resolution 2.2&Aring;" />
 
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'''Crystal structure of immune receptor'''<br />
 
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==Overview==
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==Crystal structure of immune receptor==
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All complexes of T cell receptors (TCRs) bound to peptide-major, histocompatibility complex (pMHC) molecules assume a stereotyped binding, 'polarity', despite wide variations in TCR-pMHC docking angles. However, existing TCR-pMHC crystal structures have failed to show broadly conserved, pairwise interaction motifs. Here we determined the crystal structures of, two TCRs encoded by the variable beta-chain 8.2 (V(beta)8.2), each bound, to the MHC class II molecule I-A(u), and did energetic mapping of V(alpha), and V(beta) contacts with I-A(u). Together with two previously solved, structures of V(beta)8.2-containing TCR-MHC complexes, we found four, TCR-I-A complexes with structurally superimposable interactions between, the V(beta) loops and the I-A alpha-helix. This examination of a narrow, 'slice' of the TCR-MHC repertoire demonstrates what is probably one of, many germline-derived TCR-MHC interaction 'codons'.
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<StructureSection load='2z35' size='340' side='right'caption='[[2z35]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2z35]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2Z35 OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=2Z35 FirstGlance]. <br>
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</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=2z35 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2z35 OCA], [http://pdbe.org/2z35 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2z35 RCSB], [http://www.ebi.ac.uk/pdbsum/2z35 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2z35 ProSAT]</span></td></tr>
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</table>
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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/z3/2z35_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=2z35 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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All complexes of T cell receptors (TCRs) bound to peptide-major histocompatibility complex (pMHC) molecules assume a stereotyped binding 'polarity', despite wide variations in TCR-pMHC docking angles. However, existing TCR-pMHC crystal structures have failed to show broadly conserved pairwise interaction motifs. Here we determined the crystal structures of two TCRs encoded by the variable beta-chain 8.2 (V(beta)8.2), each bound to the MHC class II molecule I-A(u), and did energetic mapping of V(alpha) and V(beta) contacts with I-A(u). Together with two previously solved structures of V(beta)8.2-containing TCR-MHC complexes, we found four TCR-I-A complexes with structurally superimposable interactions between the V(beta) loops and the I-A alpha-helix. This examination of a narrow 'slice' of the TCR-MHC repertoire demonstrates what is probably one of many germline-derived TCR-MHC interaction 'codons'.
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==About this Structure==
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Structural evidence for a germline-encoded T cell receptor-major histocompatibility complex interaction 'codon'.,Feng D, Bond CJ, Ely LK, Maynard J, Garcia KC Nat Immunol. 2007 Sep;8(9):975-83. Epub 2007 Aug 12. PMID:17694060<ref>PMID:17694060</ref>
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2Z35 is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2Z35 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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Structural evidence for a germline-encoded T cell receptor-major histocompatibility complex interaction 'codon'., Feng D, Bond CJ, Ely LK, Maynard J, Garcia KC, Nat Immunol. 2007 Sep;8(9):975-83. Epub 2007 Aug 12. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=17694060 17694060]
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</div>
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[[Category: Mus musculus]]
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<div class="pdbe-citations 2z35" style="background-color:#fffaf0;"></div>
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[[Category: Protein complex]]
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[[Category: Bond, C.J.]]
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[[Category: Ely, L.K.]]
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[[Category: Feng, D.]]
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[[Category: Garcia, K.C.]]
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[[Category: immune receptor]]
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[[Category: immune system]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jan 23 13:06:03 2008''
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==See Also==
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*[[T-cell receptor 3D structures|T-cell receptor 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
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[[Category: Lk3 transgenic mice]]
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[[Category: Bond, C J]]
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[[Category: Ely, L K]]
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[[Category: Feng, D]]
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[[Category: Garcia, K C]]
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[[Category: Immune receptor]]
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[[Category: Immune system]]

Current revision

Crystal structure of immune receptor

PDB ID 2z35

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