4f7m
From Proteopedia
(Difference between revisions)
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- | + | ==Crystal Structure of HLA-A*2402 Complexed with a Newly Identified Peptide from 2009 H1N1 PA (649-658)== | |
- | + | <StructureSection load='4f7m' size='340' side='right' caption='[[4f7m]], [[Resolution|resolution]] 2.40Å' scene=''> | |
- | + | == Structural highlights == | |
+ | <table><tr><td colspan='2'>[[4f7m]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4F7M OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4F7M FirstGlance]. <br> | ||
+ | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3i6l|3i6l]], [[4f7p|4f7p]], [[4f7t|4f7t]], [[4f7q|4f7q]]</td></tr> | ||
+ | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HLA-A, HLAA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), B2M, CDABP0092, HDCMA22P ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</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=4f7m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4f7m OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4f7m RCSB], [http://www.ebi.ac.uk/pdbsum/4f7m PDBsum]</span></td></tr> | ||
+ | </table> | ||
+ | == Disease == | ||
+ | [[http://www.uniprot.org/uniprot/B2MG_HUMAN B2MG_HUMAN]] Defects in B2M are the cause of hypercatabolic hypoproteinemia (HYCATHYP) [MIM:[http://omim.org/entry/241600 241600]]. Affected individuals show marked reduction in serum concentrations of immunoglobulin and albumin, probably due to rapid degradation.<ref>PMID:16549777</ref> Note=Beta-2-microglobulin may adopt the fibrillar configuration of amyloid in certain pathologic states. The capacity to assemble into amyloid fibrils is concentration dependent. Persistently high beta(2)-microglobulin serum levels lead to amyloidosis in patients on long-term hemodialysis.<ref>PMID:3532124</ref> <ref>PMID:1336137</ref> <ref>PMID:7554280</ref> <ref>PMID:4586824</ref> <ref>PMID:8084451</ref> <ref>PMID:12119416</ref> <ref>PMID:12796775</ref> <ref>PMID:16901902</ref> <ref>PMID:16491088</ref> <ref>PMID:17646174</ref> <ref>PMID:18835253</ref> <ref>PMID:18395224</ref> <ref>PMID:19284997</ref> | ||
+ | == Function == | ||
+ | [[http://www.uniprot.org/uniprot/1A24_HUMAN 1A24_HUMAN]] Involved in the presentation of foreign antigens to the immune system. [[http://www.uniprot.org/uniprot/Q9YXL3_9INFA Q9YXL3_9INFA]] Implicated in endonuclease cleavage of capped RNA primers. Displays an elongation factor activity in viral RNA synthesis. Dispensable for viral transcription, but not replication (By similarity).[SAAS:SAAS001009_004_020464] [[http://www.uniprot.org/uniprot/B2MG_HUMAN B2MG_HUMAN]] Component of the class I major histocompatibility complex (MHC). Involved in the presentation of peptide antigens to the immune system. | ||
+ | <div style="background-color:#fffaf0;"> | ||
+ | == Publication Abstract from PubMed == | ||
+ | Lack of a universal vaccine against all serotypes of influenza A viruses and recent progress on T cell-related vaccines against influenza A virus illuminate the important role of human leukocyte antigen (HLA)-restricted cytotoxic T lymphocytes (CTLs) in anti-influenza virus immunity. However, the diverse HLA alleles among humans complicate virus-specific cellular immunity research, and elucidation of cross-HLA allele T cell responses to influenza virus specificity requires further detailed work. An ideal CTL epitope-based vaccine would cover a broad spectrum of epitope antigens to be presented by most, if not all, of the HLAs. Herein, we evaluated the 2009 pandemic influenza A (H1N1) virus-specific T cell responses among the HLA-A24(+) population using a rationally designed peptide pool during the 2009 pandemic. Unexpectedly, cross-HLA allele T cell responses against the influenza A virus peptides were detected among both HLA-A11(+) and HLA-A24(+) donors. Furthermore, we found cross-responses in the entire HLA-A3 supertype population (including HLA-A11, -A31, -A33, and -A30) restricted manner. The cross-alelle antigenic peptides within the peptide pool were identified and characterized, and the crystal structures of the MHC/peptide complexes were determined. The subsequent HLA-A24-defined cross-allele peptides recognized by the HLA-A11(+) population were shown to mildly bind to the HLA-A*1101 molecule. Together with the structural models, these results partially explain the cross-allele responses. Our findings elucidated the promiscuity of the cross-allele T cell responses against influenza A viruses and are beneficial for the development of a T cell epitope-based vaccine applied in a broader population. | ||
- | + | Cross-allele CTL responses against 2009 pandemic H1N1 influenza A virus among HLA-A24 and HLA-A3 supertype-positive individuals.,Liu J, Zhang S, Tan S, Yi Y, Wu B, Cao B, Zhu F, Wang C, Wang H, Qi J, Gao GF J Virol. 2012 Sep 26. PMID:23015716<ref>PMID:23015716</ref> | |
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- | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
- | + | </div> | |
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==See Also== | ==See Also== | ||
*[[Beta-2 microglobulin|Beta-2 microglobulin]] | *[[Beta-2 microglobulin|Beta-2 microglobulin]] | ||
- | + | == References == | |
- | == | + | <references/> |
- | <references | + | __TOC__ |
+ | </StructureSection> | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
- | [[Category: George, F G | + | [[Category: George, F G]] |
- | [[Category: Liu, J | + | [[Category: Liu, J]] |
- | [[Category: Qi, J | + | [[Category: Qi, J]] |
- | [[Category: Tan, S | + | [[Category: Tan, S]] |
- | [[Category: Wang, H | + | [[Category: Wang, H]] |
- | [[Category: Wu, B | + | [[Category: Wu, B]] |
- | [[Category: Yi, Y | + | [[Category: Yi, Y]] |
- | [[Category: Zhang, S | + | [[Category: Zhang, S]] |
- | [[Category: Zhu, F | + | [[Category: Zhu, F]] |
[[Category: 2009 h1n1]] | [[Category: 2009 h1n1]] | ||
[[Category: Hla-a*2402]] | [[Category: Hla-a*2402]] |
Revision as of 11:39, 21 December 2014
Crystal Structure of HLA-A*2402 Complexed with a Newly Identified Peptide from 2009 H1N1 PA (649-658)
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Categories: Homo sapiens | George, F G | Liu, J | Qi, J | Tan, S | Wang, H | Wu, B | Yi, Y | Zhang, S | Zhu, F | 2009 h1n1 | Hla-a*2402 | Hla-a3 supertype | Immune system | Influenza a virus