View source for 1cd1


==CD1(MOUSE) ANTIGEN PRESENTING MOLECULE==
<StructureSection load='1cd1' size='340' side='right' caption='[[1cd1]], [[Resolution|resolution]] 2.67&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1cd1]] is a 4 chain structure with sequence from [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=1CD1 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1CD1 FirstGlance]. <br>
</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CD1.1 ([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=1cd1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cd1 OCA], [http://pdbe.org/1cd1 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1cd1 RCSB], [http://www.ebi.ac.uk/pdbsum/1cd1 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1cd1 ProSAT]</span></td></tr>
</table>
== Function ==
[[http://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>  [[http://www.uniprot.org/uniprot/B2MG_MOUSE B2MG_MOUSE]] Component of the class I major histocompatibility complex (MHC). Involved in the presentation of peptide 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/cd/1cd1_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=1cd1 ConSurf].
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== Publication Abstract from PubMed ==
CD1 represents a third lineage of antigen-presenting molecules that are distantly related to major histocompatibility complex (MHC) molecules in the immune system. The crystal structure of mouse CD1d1, corresponding to human CD1d, at 2.8 resolution shows that CD1 adopts an MHC fold that is more closely related to that of MHC class I than to that of MHC class II. The binding groove, although significantly narrower, is substantially larger because of increased depth and it has only two major pockets that are almost completely hydrophobic. The extreme hydrophobicity and shape of the binding site are consistent with observations that human CD1b and CD1c can present mycobacterial cell wall antigens, such as mycolic acid and lipoarabinomannans. However, mouse CD1d1 can present very hydrophobic peptides, but must do so in a very different way from MHC class Ia and class II molecules.

Crystal structure of mouse CD1: An MHC-like fold with a large hydrophobic binding groove.,Zeng Z, Castano AR, Segelke BW, Stura EA, Peterson PA, Wilson IA Science. 1997 Jul 18;277(5324):339-45. PMID:9219685<ref>PMID:9219685</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 1cd1" style="background-color:#fffaf0;"></div>

==See Also==
*[[CD1|CD1]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Lk3 transgenic mice]]
[[Category: Segelke, B W]]
[[Category: Wilson, I A]]
[[Category: Zeng, Z H]]
[[Category: Cd1]]
[[Category: Glycoprotein]]
[[Category: Immunoglobulin fold]]
[[Category: Immunology]]
[[Category: Mhc]]
[[Category: T-cell]]
[[Category: Tcr]]