1juf: Difference between revisions
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==Structure of Minor Histocompatibility Antigen peptide, H13b, complexed to H2-Db== | |||
<StructureSection load='1juf' size='340' side='right'caption='[[1juf]], [[Resolution|resolution]] 2.00Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1juf]] is a 3 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=1JUF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1JUF 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]] 2Å</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=1juf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1juf OCA], [https://pdbe.org/1juf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1juf RCSB], [https://www.ebi.ac.uk/pdbsum/1juf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1juf ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/HA11_MOUSE HA11_MOUSE] Involved in the presentation of foreign antigens to the immune system. | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ju/1juf_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</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=1juf ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The mouse H13 minor histocompatibility (H) Ag, originally detected as a barrier to allograft transplants, is remarkable in that rejection is a consequence of an extremely subtle interchange, P4(Val/Ile), in a nonamer H2-D(b)-bound peptide. Moreover, H13 peptides lack the canonical P5(Asn) central anchor residue normally considered important for forming a peptide/MHC complex. To understand how these noncanonical peptide pMHC complexes form physiologically active TCR ligands, crystal structures of allelic H13 pD(b) complexes and a P5(Asn) anchored pD(b) analog were solved to high resolution. The structures show that the basis of TCRs to distinguish self from nonself H13 peptides is their ability to distinguish a single solvent-exposed methyl group. In addition, the structures demonstrate that there is no need for H13 peptides to derive any stabilization from interactions within the central C pocket to generate fully functional pMHC complexes. These results provide a structural explanation for a classical non-MHC-encoded H Ag, and they call into question the requirement for contact between anchor residues and the major MHC binding pockets in vaccine design. | |||
How H13 histocompatibility peptides differing by a single methyl group and lacking conventional MHC binding anchor motifs determine self-nonself discrimination.,Ostrov DA, Roden MM, Shi W, Palmieri E, Christianson GJ, Mendoza L, Villaflor G, Tilley D, Shastri N, Grey H, Almo SC, Roopenian D, Nathenson SG J Immunol. 2002 Jan 1;168(1):283-9. PMID:11751972<ref>PMID:11751972</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1juf" style="background-color:#fffaf0;"></div> | |||
== | ==See Also== | ||
*[[Beta-2 microglobulin 3D structures|Beta-2 microglobulin 3D structures]] | |||
*[[MHC 3D structures|MHC 3D structures]] | |||
*[[MHC I 3D structures|MHC I 3D structures]] | |||
== References == | |||
<references/> | |||
== | __TOC__ | ||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Mus musculus]] | [[Category: Mus musculus]] | ||
[[Category: Almo SC]] | |||
[[Category: Almo | [[Category: Christianson GJ]] | ||
[[Category: Christianson | [[Category: Grey H]] | ||
[[Category: Grey | [[Category: Mendoza L]] | ||
[[Category: Mendoza | [[Category: Nathenson SG]] | ||
[[Category: Nathenson | [[Category: Ostrov DA]] | ||
[[Category: Ostrov | [[Category: Palmieri E]] | ||
[[Category: Palmieri | [[Category: Roden MM]] | ||
[[Category: Roden | [[Category: Roopenian DC]] | ||
[[Category: Roopenian | [[Category: Shastri N]] | ||
[[Category: Shastri | [[Category: Shi W]] | ||
[[Category: Shi | [[Category: Tilley D]] | ||
[[Category: Tilley | [[Category: Villaflor G]] | ||
[[Category: Villaflor | |||