1z5l: Difference between revisions

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New page: left|200px<br /><applet load="1z5l" size="450" color="white" frame="true" align="right" spinBox="true" caption="1z5l, resolution 2.20Å" /> '''Structure of a highl...
 
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[[Image:1z5l.gif|left|200px]]<br /><applet load="1z5l" size="450" color="white" frame="true" align="right" spinBox="true"
caption="1z5l, resolution 2.20&Aring;" />
'''Structure of a highly potent short-chain galactosyl ceramide agonist bound to CD1D'''<br />


==Overview==
==Structure of a highly potent short-chain galactosyl ceramide agonist bound to CD1D==
Natural killer T cells express a conserved, semi-invariant alphabeta T, cell receptor that has specificity for self glycosphingolipids and, microbial cell wall alpha-glycuronosylceramide antigens presented by CD1d, molecules. Here we report the crystal structure of CD1d in complex with a, short-chain synthetic variant of alpha-galactosylceramide at a resolution, of 2.2 A. This structure elucidates the basis for the high specificity of, these microbial ligands and explains the restriction of the alpha-linkage, as a unique pathogen-specific pattern-recognition motif. Comparison of the, binding of altered lipid ligands to CD1d and T cell receptors suggested, that the differential T helper type 1-like and T helper type 2-like, properties of natural killer T cells may originate largely from, differences in their 'loading' in different cell types and hence in their, tissue distribution in vivo.
<StructureSection load='1z5l' size='340' side='right'caption='[[1z5l]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1z5l]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Z5L OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1Z5L 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]] 2.2&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=PBS:(2S,3S,4R)-N-OCTANOYL-1-[(ALPHA-D-GALACTOPYRANOSYL)OXY]-2-AMINO-OCTADECANE-3,4-DIOL'>PBS</scene>, <scene name='pdbligand=R16:HEXADECANE'>R16</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=1z5l FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1z5l OCA], [https://pdbe.org/1z5l PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1z5l RCSB], [https://www.ebi.ac.uk/pdbsum/1z5l PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1z5l ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CD1D1_MOUSE CD1D1_MOUSE] Antigen-presenting protein that binds self and non-self glycolipids and presents them to T-cell receptors on natural killer T-cells.<ref>PMID:11754812</ref> <ref>PMID:16314439</ref> <ref>PMID:16007091</ref>
== 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/z5/1z5l_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=1z5l ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Natural killer T cells express a conserved, semi-invariant alphabeta T cell receptor that has specificity for self glycosphingolipids and microbial cell wall alpha-glycuronosylceramide antigens presented by CD1d molecules. Here we report the crystal structure of CD1d in complex with a short-chain synthetic variant of alpha-galactosylceramide at a resolution of 2.2 A. This structure elucidates the basis for the high specificity of these microbial ligands and explains the restriction of the alpha-linkage as a unique pathogen-specific pattern-recognition motif. Comparison of the binding of altered lipid ligands to CD1d and T cell receptors suggested that the differential T helper type 1-like and T helper type 2-like properties of natural killer T cells may originate largely from differences in their 'loading' in different cell types and hence in their tissue distribution in vivo.


==About this Structure==
Structure and function of a potent agonist for the semi-invariant natural killer T cell receptor.,Zajonc DM, Cantu C 3rd, Mattner J, Zhou D, Savage PB, Bendelac A, Wilson IA, Teyton L Nat Immunol. 2005 Aug;6(8):810-8. Epub 2005 Jul 10. PMID:16007091<ref>PMID:16007091</ref>
1Z5L is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus] with NAG, PBS and R16 as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1Z5L OCA].


==Reference==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
Structure and function of a potent agonist for the semi-invariant natural killer T cell receptor., Zajonc DM, Cantu C 3rd, Mattner J, Zhou D, Savage PB, Bendelac A, Wilson IA, Teyton L, Nat Immunol. 2005 Aug;6(8):810-8. Epub 2005 Jul 10. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=16007091 16007091]
</div>
<div class="pdbe-citations 1z5l" style="background-color:#fffaf0;"></div>
 
==See Also==
*[[Beta-2 microglobulin 3D structures|Beta-2 microglobulin 3D structures]]
*[[CD1|CD1]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
[[Category: Protein complex]]
[[Category: Bendelac A]]
[[Category: Bendelac, A.]]
[[Category: Cantu C]]
[[Category: Cantu, C.]]
[[Category: Mattner J]]
[[Category: Mattner, J.]]
[[Category: Savage PB]]
[[Category: Savage, P.B.]]
[[Category: Teyton L]]
[[Category: Teyton, L.]]
[[Category: Wilson IA]]
[[Category: Wilson, I.A.]]
[[Category: Zajonc DM]]
[[Category: Zajonc, D.M.]]
[[Category: Zhou D]]
[[Category: Zhou, D.]]
[[Category: NAG]]
[[Category: PBS]]
[[Category: R16]]
[[Category: ig fold]]
[[Category: mhc fold]]
 
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Wed Nov 21 07:15:05 2007''

Latest revision as of 07:44, 30 October 2024

Structure of a highly potent short-chain galactosyl ceramide agonist bound to CD1D

1z5l, resolution 2.20Å

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