1kbg
From Proteopedia
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| - | [[Image:1kbg.jpg|left|200px]]<br /><applet load="1kbg" size="350" color="white" frame="true" align="right" spinBox="true" | ||
| - | caption="1kbg, resolution 2.2Å" /> | ||
| - | '''MHC CLASS I H-2KB PRESENTED GLYCOPEPTIDE RGY8-6H-GAL2'''<br /> | ||
| - | == | + | ==MHC Class I H-2KB Presented Glycopeptide RGY8-6H-GAL2== |
| + | <StructureSection load='1kbg' size='340' side='right'caption='[[1kbg]], [[Resolution|resolution]] 2.20Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[1kbg]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus] and [https://en.wikipedia.org/wiki/Vesicular_stomatitis_Indiana_virus_strain_Glasgow Vesicular stomatitis Indiana virus strain Glasgow]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KBG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1KBG 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]] 2.2Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ESC:2-AMINO-4-ETHYL+SULFANYL+BUTYRIC+ACID'>ESC</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene>, <scene name='pdbligand=GLA:ALPHA+D-GALACTOSE'>GLA</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></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=1kbg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kbg OCA], [https://pdbe.org/1kbg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1kbg RCSB], [https://www.ebi.ac.uk/pdbsum/1kbg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1kbg ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/HA1B_MOUSE HA1B_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/kb/1kbg_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=1kbg ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
T cell receptor (TCR) recognition of nonpeptidic and modified peptide antigens has been recently uncovered but is still poorly understood. Immunization with an H-2Kb-restricted glycopeptide RGY8-6H-Gal2 generates a population of cytotoxic T cells that express both alpha/beta TCR, specific for glycopeptide, and gamma/delta TCR, specific for the disaccharide, even on glycolipids. The crystal structure of Kb/RGY8-6H-Gal2 now demonstrates that the peptide and H-2Kb structures are unaffected by the peptide glycosylation, but the central region of the putative TCR binding site is dominated by the extensive exposure of the tethered carbohydrate. These features of the Kb/RGY8-6H-Gal2 structure are consistent with the individual ligand binding preferences identified for the alpha/beta and gamma/delta TCRs and thus explain the generation of a carbohydrate-specific T cell response. | T cell receptor (TCR) recognition of nonpeptidic and modified peptide antigens has been recently uncovered but is still poorly understood. Immunization with an H-2Kb-restricted glycopeptide RGY8-6H-Gal2 generates a population of cytotoxic T cells that express both alpha/beta TCR, specific for glycopeptide, and gamma/delta TCR, specific for the disaccharide, even on glycolipids. The crystal structure of Kb/RGY8-6H-Gal2 now demonstrates that the peptide and H-2Kb structures are unaffected by the peptide glycosylation, but the central region of the putative TCR binding site is dominated by the extensive exposure of the tethered carbohydrate. These features of the Kb/RGY8-6H-Gal2 structure are consistent with the individual ligand binding preferences identified for the alpha/beta and gamma/delta TCRs and thus explain the generation of a carbohydrate-specific T cell response. | ||
| - | + | Crystal structure of an MHC class I presented glycopeptide that generates carbohydrate-specific CTL.,Speir JA, Abdel-Motal UM, Jondal M, Wilson IA Immunity. 1999 Jan;10(1):51-61. PMID:10023770<ref>PMID:10023770</ref> | |
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| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | <div class="pdbe-citations 1kbg" style="background-color:#fffaf0;"></div> | |
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| - | + | ==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__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Mus musculus]] | ||
| + | [[Category: Vesicular stomatitis Indiana virus strain Glasgow]] | ||
| + | [[Category: Abdel-Motal UM]] | ||
| + | [[Category: Jondal M]] | ||
| + | [[Category: Speir JA]] | ||
| + | [[Category: Wilson IA]] | ||
Current revision
MHC Class I H-2KB Presented Glycopeptide RGY8-6H-GAL2
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