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| | ==Structure of NK cell receptor 2B4 (CD244) bound to its ligand CD48== | | ==Structure of NK cell receptor 2B4 (CD244) bound to its ligand CD48== |
| - | <StructureSection load='2ptt' size='340' side='right' caption='[[2ptt]], [[Resolution|resolution]] 1.63Å' scene=''> | + | <StructureSection load='2ptt' size='340' side='right'caption='[[2ptt]], [[Resolution|resolution]] 1.63Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2ptt]] is a 2 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=2PTT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2PTT FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2ptt]] is a 2 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=2PTT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2PTT FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></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]] 1.63Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2ptu|2ptu]], [[2ptv|2ptv]]</td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Cd48, Bcm-1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 LK3 transgenic mice]), Cd244, 2b4, Nmrk ([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'>[https://proteopedia.org/fgij/fg.htm?mol=2ptt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ptt OCA], [https://pdbe.org/2ptt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ptt RCSB], [https://www.ebi.ac.uk/pdbsum/2ptt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ptt ProSAT]</span></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=2ptt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ptt OCA], [http://pdbe.org/2ptt PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2ptt RCSB], [http://www.ebi.ac.uk/pdbsum/2ptt PDBsum]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/CD48_MOUSE CD48_MOUSE]] Ligand for CD2. Might facilitate interaction between activated lymphocytes. Probably involved in regulating T-cell activation. [[http://www.uniprot.org/uniprot/CD244_MOUSE CD244_MOUSE]] Modulate other receptor-ligand interactions to enhance leukocyte activation (By similarity). | + | [https://www.uniprot.org/uniprot/CD48_MOUSE CD48_MOUSE] Ligand for CD2. Might facilitate interaction between activated lymphocytes. Probably involved in regulating T-cell activation. |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
| | Check<jmol> | | Check<jmol> |
| | <jmolCheckbox> | | <jmolCheckbox> |
| - | <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/pt/2ptt_consurf.spt"</scriptWhenChecked> | + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/pt/2ptt_consurf.spt"</scriptWhenChecked> |
| | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> |
| | <text>to colour the structure by Evolutionary Conservation</text> | | <text>to colour the structure by Evolutionary Conservation</text> |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Lk3 transgenic mice]] | + | [[Category: Large Structures]] |
| - | [[Category: Deng, L]] | + | [[Category: Mus musculus]] |
| - | [[Category: Mariuzza, R A]] | + | [[Category: Deng L]] |
| - | [[Category: Velikovsky, C A]] | + | [[Category: Mariuzza RA]] |
| - | [[Category: Cd244]] | + | [[Category: Velikovsky CA]] |
| - | [[Category: Cd48]]
| + | |
| - | [[Category: Immune system]]
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| - | [[Category: Nk cell receptor]]
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| Structural highlights
Function
CD48_MOUSE Ligand for CD2. Might facilitate interaction between activated lymphocytes. Probably involved in regulating T-cell activation.
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Natural killer (NK) cells eliminate virally infected and tumor cells. Among the receptors regulating NK cell function is 2B4 (CD244), a member of the signaling lymphocyte-activation molecule (SLAM) family that binds CD48. 2B4 is the only heterophilic receptor of the SLAM family, whose other members, e.g., NK-T-B-antigen (NTB-A), are self-ligands. We determined the structure of the complex between the N-terminal domains of mouse 2B4 and CD48, as well as the structures of unbound 2B4 and CD48. The complex displayed an association mode related to, yet distinct from, that of the NTB-A dimer. Binding was accompanied by the rigidification of flexible 2B4 regions containing most of the polymorphic residues across different species and receptor isoforms. We propose a model for 2B4-CD48 interactions that permits the intermixing of SLAM receptors with major histocompatibility complex-specific receptors in the NK cell immune synapse. This analysis revealed the basis for heterophilic recognition within the SLAM family.
Structure of natural killer receptor 2B4 bound to CD48 reveals basis for heterophilic recognition in signaling lymphocyte activation molecule family.,Velikovsky CA, Deng L, Chlewicki LK, Fernandez MM, Kumar V, Mariuzza RA Immunity. 2007 Oct;27(4):572-84. Epub 2007 Oct 18. PMID:17950006[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Velikovsky CA, Deng L, Chlewicki LK, Fernandez MM, Kumar V, Mariuzza RA. Structure of natural killer receptor 2B4 bound to CD48 reveals basis for heterophilic recognition in signaling lymphocyte activation molecule family. Immunity. 2007 Oct;27(4):572-84. Epub 2007 Oct 18. PMID:17950006 doi:10.1016/j.immuni.2007.08.019
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