1bqh

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{{STRUCTURE_1bqh| PDB=1bqh | SCENE= }}
 
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===MURINE CD8AA ECTODOMAIN FRAGMENT IN COMPLEX WITH H-2KB/VSV8===
 
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{{ABSTRACT_PUBMED_9806638}}
 
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==About this Structure==
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==MURINE CD8AA ECTODOMAIN FRAGMENT IN COMPLEX WITH H-2KB/VSV8==
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[[1bqh]] is a 10 chain structure with sequence 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=1BQH OCA].
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<StructureSection load='1bqh' size='340' side='right'caption='[[1bqh]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1bqh]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BQH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1BQH FirstGlance]. <br>
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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]] 2.8&#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=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></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=1bqh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bqh OCA], [https://pdbe.org/1bqh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1bqh RCSB], [https://www.ebi.ac.uk/pdbsum/1bqh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1bqh ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CD8A_MOUSE CD8A_MOUSE] Identifies cytotoxic/suppressor T-cells that interact with MHC class I bearing targets. CD8 is thought to play a role in the process of T-cell mediated killing. CD8 alpha chains binds to class I MHC molecules alpha-3 domains.
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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/bq/1bqh_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=1bqh 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 crystal structure of the two immunoglobulin variable-like domains of the murine CD8alphaalpha homodimer complexed to the class I MHC H-2Kb molecule at 2.8 A resolution shows that CD8alphaalpha binds to the protruding MHC alpha3 domain loop in an antibody-like manner. Comparison of mouse CD8alphaalpha/H-2Kb and human CD8alphaalpha/HLA-A2 complexes reveals shared as well as species-specific recognition features. In both species, coreceptor function apparently involves the participation of CD8 dimer in a bidentate attachment to an MHC class I molecule in conjunction with a T cell receptor without discernable conformational alteration of the peptide or MHC antigen-presenting platform.
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==See Also==
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Structural basis of CD8 coreceptor function revealed by crystallographic analysis of a murine CD8alphaalpha ectodomain fragment in complex with H-2Kb.,Kern PS, Teng MK, Smolyar A, Liu JH, Liu J, Hussey RE, Spoerl R, Chang HC, Reinherz EL, Wang JH Immunity. 1998 Oct;9(4):519-30. PMID:9806638<ref>PMID:9806638</ref>
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*[[Beta-2 microglobulin|Beta-2 microglobulin]]
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*[[Conservation%2C Evolutionary|Conservation%2C Evolutionary]]
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*[[Major histocompatibility complex|Major histocompatibility complex]]
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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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<ref group="xtra">PMID:009806638</ref><references group="xtra"/>
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</div>
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<div class="pdbe-citations 1bqh" style="background-color:#fffaf0;"></div>
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==See Also==
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*[[Beta-2 microglobulin 3D structures|Beta-2 microglobulin 3D structures]]
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*[[CD8 3D structures|CD8 3D structures]]
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*[[MHC 3D structures|MHC 3D structures]]
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*[[MHC I 3D structures|MHC I 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]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
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[[Category: Chang, H C.]]
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[[Category: Chang HC]]
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[[Category: Kern, P S.]]
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[[Category: Kern PS]]
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[[Category: Reinherz, E L.]]
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[[Category: Reinherz EL]]
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[[Category: Wang, J H.]]
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[[Category: Wang JH]]
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[[Category: Antigen]]
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[[Category: Complex]]
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[[Category: Coreceptor]]
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[[Category: Glycoprotein]]
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[[Category: Immune system]]
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[[Category: Immunology]]
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[[Category: T-cell]]
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Current revision

MURINE CD8AA ECTODOMAIN FRAGMENT IN COMPLEX WITH H-2KB/VSV8

PDB ID 1bqh

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