1bz9
From Proteopedia
(Difference between revisions)
(8 intermediate revisions not shown.) | |||
Line 1: | Line 1: | ||
- | [[Image:1bz9.png|left|200px]] | ||
- | + | ==CRYSTAL STRUCTURE OF MURINE CLASS I MHC H2-DB COMPLEXED WITH A SYNTHETIC PEPTIDE P1027== | |
+ | <StructureSection load='1bz9' size='340' side='right'caption='[[1bz9]], [[Resolution|resolution]] 2.80Å' scene=''> | ||
+ | == Structural highlights == | ||
+ | <table><tr><td colspan='2'>[[1bz9]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1a9d 1a9d]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BZ9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1BZ9 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]] 2.8Å</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=1bz9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bz9 OCA], [https://pdbe.org/1bz9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1bz9 RCSB], [https://www.ebi.ac.uk/pdbsum/1bz9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1bz9 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/bz/1bz9_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=1bz9 ConSurf]. | ||
+ | <div style="clear:both"></div> | ||
+ | <div style="background-color:#fffaf0;"> | ||
+ | == Publication Abstract from PubMed == | ||
+ | The T cell receptor (TCR), from a xeno-reactive murine cytotoxic T lymphocyte clone AHIII12.2, recognizes murine H-2Db complexed with peptide p1027 (FAPGVFPYM), as well as human HLA-A2.1 complexed with peptide p1049 (ALWGFFPVL). A commonly proposed model (the molecular mimicry model) used to explain TCR cross-reactivity suggests that the molecular surfaces of the recognized complexes are similar in shape, charge, or both, in spite of the primary sequence differences. To examine the mechanism of xeno-reactivity of AHIII12.2, we have determined the crystal structures of A2/p1049 and Db/p1027 to 2.5 A and 2.8 A resolution, respectively. The crystal structures show that the TCR footprint regions of the two class I complexes are significantly different in shape and charge. We propose that rather than simple molecular mimicry, unpredictable arrays of common and differential contacts on the two class I complexes are used for their recognition by the same TCR. | ||
- | + | Structural evidence of T cell xeno-reactivity in the absence of molecular mimicry.,Zhao R, Loftus DJ, Appella E, Collins EJ J Exp Med. 1999 Jan 18;189(2):359-70. PMID:9892618<ref>PMID:9892618</ref> | |
- | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
- | + | </div> | |
- | + | <div class="pdbe-citations 1bz9" style="background-color:#fffaf0;"></div> | |
- | + | ||
==See Also== | ==See Also== | ||
- | *[[Beta-2 microglobulin|Beta-2 microglobulin]] | + | *[[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: Collins | + | [[Category: Collins EJ]] |
- | [[Category: Zhao | + | [[Category: Zhao R]] |
- | + | ||
- | + |
Current revision
CRYSTAL STRUCTURE OF MURINE CLASS I MHC H2-DB COMPLEXED WITH A SYNTHETIC PEPTIDE P1027
|