View source for 4p46


==J809.B5 Y31A TCR bound to IAb3K==
<StructureSection load='4p46' size='340' side='right'caption='[[4p46]], [[Resolution|resolution]] 2.85&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4p46]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus] and [https://en.wikipedia.org/wiki/Synthetic_construct Synthetic construct]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4P46 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4P46 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.851&#8491;</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4p46 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4p46 OCA], [https://pdbe.org/4p46 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4p46 RCSB], [https://www.ebi.ac.uk/pdbsum/4p46 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4p46 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/HA2B_MOUSE HA2B_MOUSE] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The mature T cell repertoire has the ability to orchestrate immunity to a wide range of potential pathogen challenges. This ability stems from thymic development producing individual T cell clonotypes that express TCRs with unique patterns of Ag reactivity. The Ag specificity of TCRs is created from the combinatorial pairing of one of a set of germline encoded TCR Valpha and Vbeta gene segments with randomly created CDR3 sequences. How the amalgamation of germline encoded and randomly created TCR sequences results in Ag receptors with unique patterns of ligand specificity is not fully understood. Using cellular, biophysical, and structural analyses, we show that CDR3alpha residues can modulate the geometry in which TCRs bind peptide-MHC (pMHC), governing whether and how germline encoded TCR Valpha and Vbeta residues interact with MHC. In addition, a CDR1alpha residue that is positioned distal to the TCR-pMHC binding interface is shown to contribute to the peptide specificity of T cells. These findings demonstrate that the specificity of individual T cell clonotypes arises not only from TCR residues that create direct contacts with the pMHC, but also from a collection of indirect effects that modulate how TCR residues are used to bind pMHC.

Effect of CDR3 Sequences and Distal V Gene Residues in Regulating TCR-MHC Contacts and Ligand Specificity.,Stadinski BD, Trenh P, Duke B, Huseby PG, Li G, Stern LJ, Huseby ES J Immunol. 2014 May 9. PMID:24813203<ref>PMID:24813203</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4p46" style="background-color:#fffaf0;"></div>

==See Also==
*[[T-cell receptor 3D structures|T-cell receptor 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Synthetic construct]]
[[Category: Huseby ES]]
[[Category: Stadinski BD]]
[[Category: Stern LJ]]
[[Category: Trenh P]]