7tue
From Proteopedia
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== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[7tue]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7TUE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7TUE FirstGlance]. <br> | <table><tr><td colspan='2'>[[7tue]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7TUE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7TUE FirstGlance]. <br> | ||
| - | </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=7tue FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7tue OCA], [https://pdbe.org/7tue PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7tue RCSB], [https://www.ebi.ac.uk/pdbsum/7tue PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7tue ProSAT]</span></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]] 3.1Å</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=7tue FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7tue OCA], [https://pdbe.org/7tue PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7tue RCSB], [https://www.ebi.ac.uk/pdbsum/7tue PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7tue ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
| - | + | [https://www.uniprot.org/uniprot/D5H3J5_HUMAN D5H3J5_HUMAN] | |
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Loading of MHC-I molecules with peptide by the catalytic chaperone tapasin in the peptide loading complex plays a critical role in antigen presentation and immune recognition. Mechanistic insight has been hampered by the lack of detailed structural information concerning tapasin-MHC-I. We present here crystal structures of human tapasin complexed with the MHC-I molecule HLA-B*44:05, and with each of two anti-tapasin antibodies. The tapasin-stabilized peptide-receptive state of HLA-B*44:05 is characterized by distortion of the peptide binding groove and destabilization of the beta(2)-microglobulin interaction, leading to release of peptide. Movements of the membrane proximal Ig-like domains of tapasin, HLA-B*44:05, and beta(2)-microglobulin accompany the transition to a peptide-receptive state. Together this ensemble of crystal structures provides insights into a distinct mechanism of tapasin-mediated peptide exchange. | ||
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| + | Structural mechanism of tapasin-mediated MHC-I peptide loading in antigen presentation.,Jiang J, Taylor DK, Kim EJ, Boyd LF, Ahmad J, Mage MG, Truong HV, Woodward CH, Sgourakis NG, Cresswell P, Margulies DH, Natarajan K Nat Commun. 2022 Sep 17;13(1):5470. doi: 10.1038/s41467-022-33153-8. PMID:36115831<ref>PMID:36115831</ref> | ||
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| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 7tue" style="background-color:#fffaf0;"></div> | ||
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| + | ==See Also== | ||
| + | *[[Beta-2 microglobulin 3D structures|Beta-2 microglobulin 3D structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
Current revision
Crystal structure of Tapasin in complex with HLA-B*44:05 (T73C)
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Categories: Homo sapiens | Large Structures | Boyd LF | Jiang J | Kim E | Margulies DH | Natarajan K
