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4zut

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Revision as of 08:08, 26 June 2019

Crystal structure of Equine MHC I(Eqca-N*00602) in complexed with equine infectious anaemia virus (EIAV) derived peptide Gag-GW12

Structural highlights

4zut is a 3 chain structure with sequence from Equus caballus and Lk3 transgenic mice. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	4zus, 4zuu, 4zuv, 4zuw
Gene:	B2m (LK3 transgenic mice)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[Q860N6_HORSE] Involved in the presentation of foreign antigens to the immune system.[SAAS:SAAS00281819] [B2MG_MOUSE] Component of the class I major histocompatibility complex (MHC). Involved in the presentation of peptide antigens to the immune system.

Publication Abstract from PubMed

MHC class I (MHC I)-restricted virus-specific CTLs are implicated as critical components in the control of this naturally occurring lentivirus and in the protective immune response to the successfully applied attenuated equine infectious anemia virus vaccine in the horse. Nevertheless, the structural basis for how the equine MHC I presents epitope peptides remains unknown. In this study, we investigated the binding of several equine infectious anemia virus-derived epitope peptides by the ability to refold recombinant molecules and by thermal stability, and then by determining the x-ray structure of five peptide-MHC I complexes: equine MHC class I allele (Eqca)-N*00602/Env-RW12, Eqca-N*00602/Gag-GW12, Eqca-N*00602/Rev-QW11, Eqca-N*00602/Gag-CF9, and Eqca-N*00601/Gag-GW12. Although Eqca-N*00601 and Eqca-N*00602 differ by a single amino acid, Eqca-N*00601 exhibited a drastically different peptide presentation when binding a similar CTL epitope, Gag-GW12; the result makes the previously reported function clear to be non-cross-recognition between these two alleles. The structures plus Eqca-N*00602 complexed with a 9-mer peptide are particularly noteworthy in that we illuminated differences in apparent flexibility in the center of the epitope peptides for the complexes with Gag-GW12 as compared with Env-RW12, and a strict selection of epitope peptides with normal length. The featured preferences and unconventional presentations of long peptides by equine MHC I molecules provide structural bases to explain the exceptional anti-lentivirus immunity in the horse. We think that the beneficial reference points could serve as an initial platform for other human or animal lentiviruses.

Structural Illumination of Equine MHC Class I Molecules Highlights Unconventional Epitope Presentation Manner That Is Evolved in Equine Leukocyte Antigen Alleles.,Yao S, Liu J, Qi J, Chen R, Zhang N, Liu Y, Wang J, Wu Y, Gao GF, Xia C J Immunol. 2016 Feb 15;196(4):1943-54. doi: 10.4049/jimmunol.1501352. Epub 2016, Jan 13. PMID:26764037^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Yao S, Liu J, Qi J, Chen R, Zhang N, Liu Y, Wang J, Wu Y, Gao GF, Xia C. Structural Illumination of Equine MHC Class I Molecules Highlights Unconventional Epitope Presentation Manner That Is Evolved in Equine Leukocyte Antigen Alleles. J Immunol. 2016 Feb 15;196(4):1943-54. doi: 10.4049/jimmunol.1501352. Epub 2016, Jan 13. PMID:26764037 doi:http://dx.doi.org/10.4049/jimmunol.1501352

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4zut"

@@ Line 1: / Line 1: @@
 ==Crystal structure of Equine MHC I(Eqca-N*00602) in complexed with equine infectious anaemia virus (EIAV) derived peptide Gag-GW12==
-<StructureSection load='4zut' size='340' side='right' caption='[[4zut]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
+<StructureSection load='4zut' size='340' side='right'caption='[[4zut]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[4zut]] is a 3 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4ZUT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4ZUT FirstGlance]. <br>
+<table><tr><td colspan='2'>[[4zut]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Equus_caballus Equus caballus] and [http://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4ZUT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4ZUT FirstGlance]. <br>
 </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4zus|4zus]], [[4zuu|4zuu]], [[4zuv|4zuv]], [[4zuw|4zuw]]</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=4zut FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4zut OCA], [http://pdbe.org/4zut PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4zut RCSB], [http://www.ebi.ac.uk/pdbsum/4zut PDBsum]</span></td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">B2m ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 LK3 transgenic mice])</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=4zut FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4zut OCA], [http://pdbe.org/4zut PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4zut RCSB], [http://www.ebi.ac.uk/pdbsum/4zut PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4zut ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 18: / Line 19: @@
 </div>
 <div class="pdbe-citations 4zut" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Beta-2 microglobulin 3D structures|Beta-2 microglobulin 3D structures]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
+[[Category: Equus caballus]]
+[[Category: Large Structures]]
+[[Category: Lk3 transgenic mice]]
 [[Category: Chen, R]]
 [[Category: Liu, J]]

4zut

From Proteopedia

Revision as of 08:08, 26 June 2019

Crystal structure of Equine MHC I(Eqca-N*00602) in complexed with equine infectious anaemia virus (EIAV) derived peptide Gag-GW12

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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