1xiw

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{{Seed}}
 
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[[Image:1xiw.png|left|200px]]
 
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==Crystal structure of human CD3-e/d dimer in complex with a UCHT1 single-chain antibody fragment==
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The line below this paragraph, containing "STRUCTURE_1xiw", creates the "Structure Box" on the page.
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<StructureSection load='1xiw' size='340' side='right'caption='[[1xiw]], [[Resolution|resolution]] 1.90&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'>[[1xiw]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1XIW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1XIW 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]] 1.9&#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=1xiw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1xiw OCA], [https://pdbe.org/1xiw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1xiw RCSB], [https://www.ebi.ac.uk/pdbsum/1xiw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1xiw ProSAT]</span></td></tr>
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{{STRUCTURE_1xiw| PDB=1xiw | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CD3E_HUMAN CD3E_HUMAN] The CD3 complex mediates signal transduction.
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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/xi/1xiw_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=1xiw 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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The alpha/beta T cell receptor complex transmits signals from MHC/peptide antigens through a set of constitutively associated signaling molecules, including CD3-epsilon/gamma and CD3-epsilon/delta. We report the crystal structure at 1.9-A resolution of a complex between a human CD3-epsilon/delta ectodomain heterodimer and a single-chain fragment of the UCHT1 antibody. CD3-epsilon/delta and CD3-epsilon/gamma share a conserved interface between the Ig-fold ectodomains, with parallel packing of the two G strands. CD3-delta has a more electronegative surface and a more compact Ig fold than CD3-gamma; thus, the two CD3 heterodimers have distinctly different molecular surfaces. The UCHT1 antibody binds near an acidic region of CD3-epsilon opposite the dimer interface, occluding this region from direct interaction with the TCR. This immunodominant epitope may be a uniquely accessible surface in the TCR/CD3 complex, because there is overlap between the binding site of the UCHT1 and OKT3 antibodies. Determination of the CD3-epsilon/delta structure completes the set of TCR/CD3 globular ectodomains and contributes information about exposed CD3 surfaces.
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===Crystal structure of human CD3-e/d dimer in complex with a UCHT1 single-chain antibody fragment===
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Crystal structure of a human CD3-epsilon/delta dimer in complex with a UCHT1 single-chain antibody fragment.,Arnett KL, Harrison SC, Wiley DC Proc Natl Acad Sci U S A. 2004 Nov 16;101(46):16268-73. Epub 2004 Nov 8. PMID:15534202<ref>PMID:15534202</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 1xiw" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_15534202}}, adds the Publication Abstract to the page
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*[[CD3 3D structures|CD3 3D structures]]
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(as it appears on PubMed at http://www.pubmed.gov), where 15534202 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_15534202}}
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__TOC__
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</StructureSection>
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==About this Structure==
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1XIW is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1XIW OCA].
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==Reference==
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Crystal structure of a human CD3-epsilon/delta dimer in complex with a UCHT1 single-chain antibody fragment., Arnett KL, Harrison SC, Wiley DC, Proc Natl Acad Sci U S A. 2004 Nov 16;101(46):16268-73. Epub 2004 Nov 8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15534202 15534202]
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
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[[Category: Protein complex]]
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[[Category: Arnett KL]]
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[[Category: Arnett, K L.]]
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[[Category: Harrison SC]]
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[[Category: Harrison, S C.]]
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[[Category: Wiley DC]]
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[[Category: Wiley, D C.]]
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[[Category: Antibody-antigen complex]]
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[[Category: Cd3-delta]]
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[[Category: Cd3-epsilon]]
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[[Category: Immunoglobulin fold]]
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[[Category: Ucht1-scfv]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 18:27:12 2008''
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Current revision

Crystal structure of human CD3-e/d dimer in complex with a UCHT1 single-chain antibody fragment

PDB ID 1xiw

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