1kj3

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[[Image:1kj3.jpg|left|200px]]
 
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==Mhc Class I H-2Kb molecule complexed with pKB1 peptide==
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The line below this paragraph, containing "STRUCTURE_1kj3", creates the "Structure Box" on the page.
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<StructureSection load='1kj3' size='340' side='right'caption='[[1kj3]], [[Resolution|resolution]] 2.30&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'>[[1kj3]] is a 6 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=1KJ3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1KJ3 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]] 2.3&#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=1kj3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kj3 OCA], [https://pdbe.org/1kj3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1kj3 RCSB], [https://www.ebi.ac.uk/pdbsum/1kj3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1kj3 ProSAT]</span></td></tr>
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{{STRUCTURE_1kj3| PDB=1kj3 | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/HA1B_MOUSE HA1B_MOUSE] Involved in the presentation of foreign antigens to the immune system.
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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/kj/1kj3_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=1kj3 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 elongated complementary-determining region (CDR) 3beta found in the unliganded KB5-C20 TCR protrudes from the antigen binding site and prevents its docking onto the peptide/MHC (pMHC) surface according to a canonical diagonal orientation. We now present the crystal structure of a complex involving the KB5-C20 TCR and an octapeptide bound to the allogeneic H-2K(b) MHC class I molecule. This structure reveals how a tremendously large CDR3beta conformational change allows the KB5-C20 TCR to adapt to the rather constrained pMHC surface and achieve a diagonal docking mode. This extreme case of induced fit also shows that TCR plasticity is primarily restricted to CDR3 loops and does not propagate away from the antigen binding site.
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'''Mhc Class I H-2Kb molecule complexed with pKB1 peptide'''
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A T cell receptor CDR3beta loop undergoes conformational changes of unprecedented magnitude upon binding to a peptide/MHC class I complex.,Reiser JB, Gregoire C, Darnault C, Mosser T, Guimezanes A, Schmitt-Verhulst AM, Fontecilla-Camps JC, Mazza G, Malissen B, Housset D Immunity. 2002 Mar;16(3):345-54. PMID:11911820<ref>PMID:11911820</ref>
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==Overview==
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The elongated complementary-determining region (CDR) 3beta found in the unliganded KB5-C20 TCR protrudes from the antigen binding site and prevents its docking onto the peptide/MHC (pMHC) surface according to a canonical diagonal orientation. We now present the crystal structure of a complex involving the KB5-C20 TCR and an octapeptide bound to the allogeneic H-2K(b) MHC class I molecule. This structure reveals how a tremendously large CDR3beta conformational change allows the KB5-C20 TCR to adapt to the rather constrained pMHC surface and achieve a diagonal docking mode. This extreme case of induced fit also shows that TCR plasticity is primarily restricted to CDR3 loops and does not propagate away from the antigen binding site.
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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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1KJ3 is a [[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=1KJ3 OCA].
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</div>
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<div class="pdbe-citations 1kj3" style="background-color:#fffaf0;"></div>
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==Reference==
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==See Also==
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A T cell receptor CDR3beta loop undergoes conformational changes of unprecedented magnitude upon binding to a peptide/MHC class I complex., Reiser JB, Gregoire C, Darnault C, Mosser T, Guimezanes A, Schmitt-Verhulst AM, Fontecilla-Camps JC, Mazza G, Malissen B, Housset D, Immunity. 2002 Mar;16(3):345-54. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11911820 11911820]
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*[[Beta-2 microglobulin 3D structures|Beta-2 microglobulin 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: Protein complex]]
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[[Category: Darnault C]]
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[[Category: Darnault, C.]]
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[[Category: Fontecilla-Camps JC]]
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[[Category: Fontecilla-Camps, J C.]]
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[[Category: Gregoire C]]
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[[Category: Gregoire, C.]]
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[[Category: Guimezanes A]]
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[[Category: Guimezanes, A.]]
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[[Category: Housset D]]
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[[Category: Housset, D.]]
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[[Category: Malissen B]]
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[[Category: Malissen, B.]]
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[[Category: Mazza G]]
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[[Category: Mazza, G.]]
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[[Category: Mosser T]]
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[[Category: Mosser, T.]]
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[[Category: Reiser J-B]]
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[[Category: Reiser, J B.]]
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[[Category: Schmitt-Verhulst A-M]]
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[[Category: Schmitt-Verhulst, A M.]]
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[[Category: Allogeneic]]
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[[Category: H-2kb]]
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[[Category: Mhc class i]]
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[[Category: Pmhc complex]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 22:48:26 2008''
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Current revision

Mhc Class I H-2Kb molecule complexed with pKB1 peptide

PDB ID 1kj3

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