6a6h: Difference between revisions

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<StructureSection load='6a6h' size='340' side='right'caption='[[6a6h]], [[Resolution|resolution]] 2.31&Aring;' scene=''>
<StructureSection load='6a6h' size='340' side='right'caption='[[6a6h]], [[Resolution|resolution]] 2.31&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[6a6h]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Pig Pig]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6A6H OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6A6H FirstGlance]. <br>
<table><tr><td colspan='2'>[[6a6h]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Foot-and-mouth_disease_virus_A Foot-and-mouth disease virus A] and [https://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6A6H OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6A6H FirstGlance]. <br>
</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SLA-B, SLA-2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9823 PIG]), B2M ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9823 PIG])</td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.31&#8491;</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6a6h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6a6h OCA], [http://pdbe.org/6a6h PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6a6h RCSB], [http://www.ebi.ac.uk/pdbsum/6a6h PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6a6h ProSAT]</span></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=6a6h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6a6h OCA], [https://pdbe.org/6a6h PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6a6h RCSB], [https://www.ebi.ac.uk/pdbsum/6a6h PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6a6h ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/B2MG_PIG B2MG_PIG]] Component of the class I major histocompatibility complex (MHC). Involved in the presentation of peptide antigens to the immune system (By similarity).  
[https://www.uniprot.org/uniprot/Q8MHU4_PIG Q8MHU4_PIG]  
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Presentation of viral epitopes by swine MHC I (termed leukocyte antigen class I, SLA I) to cytotoxic T lymphocytes (CTLs) is crucial for swine immunity. The SLA-2 structure, however, remains largely unknown. To illustrate the structural basis of swine CTL epitope presentation, the crystal structure of SLA-2*04:02:02 complexed with one peptide, derived from foot-and-mouth disease virus (FMDV), was analyzed in this study. SLA-2*04:02:02 and swine beta2-microglobulin (sbeta2m) were refolded in vitro in the presence of peptides. X-ray diffraction data of SLA-2*04:02:02-peptide-sbeta2m (referred to as p/SLA-2*04:02:02) were collected. The diffraction dataset was 2.3 A in resolution and the space group was P3(2)21. Relevant data included a = 101.8 A, b = 101.8 A, c = 73.455 A,alpha = 90.00 degrees , beta = 90.00 degrees , gamma = 120.00 degrees . The structure of p/SLA-2*04:02:02 was analyzed. The results revealed that Glu24, Met68, Gly76, and Gln173 in PBG of SLA-2*04:02:02 are different from other MHC I. Furthermore, Asn63 is different from other SLA I. Gln57, Met174 and Gln180 in PBG of SLA I are different from other species' MHC I. All of these features are different from known mammalian peptide-MHC class I complexes (referred to as p/MHC I). In addition, P4-His, P6-Val, and P8-Pro in the peptide were exposed, and these residues as epitopes can be presented by SLA-2*04:02:02. This study not only provides a structural basis for peptide presentation by SLA-2, but also screens one potential FMDV CTL epitope. The results may be of interest in future vaccine development.
 
Crystallization of SLA-2*04:02:02 complexed with a CTL epitope derived from FMDV.,Ning S, Wang ZB, Qi P, Xiao J, Wang XJ Res Vet Sci. 2020 Feb;128:90-98. doi: 10.1016/j.rvsc.2019.11.002. Epub 2019 Nov , 7. PMID:31760318<ref>PMID:31760318</ref>
 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6a6h" 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__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Foot-and-mouth disease virus A]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Pig]]
[[Category: Sus scrofa]]
[[Category: Ning, S]]
[[Category: Ning S]]
[[Category: Wang, Z B]]
[[Category: Wang ZB]]
[[Category: Immune system]]
[[Category: Immune system- transferase complex]]
[[Category: Immunology]]
[[Category: Mhc]]

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