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| | ==Crystal Structure of the PH domain of SKAP55== | | ==Crystal Structure of the PH domain of SKAP55== |
| - | <StructureSection load='1u5d' size='340' side='right' caption='[[1u5d]], [[Resolution|resolution]] 1.70Å' scene=''> | + | <StructureSection load='1u5d' size='340' side='right'caption='[[1u5d]], [[Resolution|resolution]] 1.70Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1u5d]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1U5D OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1U5D FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1u5d]] is a 4 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=1U5D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1U5D 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]] 1.7Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1u5g|1u5g]], [[1u5e|1u5e]], [[1u5f|1u5f]]</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">HSSKAP55 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=1u5d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1u5d OCA], [https://pdbe.org/1u5d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1u5d RCSB], [https://www.ebi.ac.uk/pdbsum/1u5d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1u5d 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=1u5d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1u5d OCA], [http://pdbe.org/1u5d PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1u5d RCSB], [http://www.ebi.ac.uk/pdbsum/1u5d PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1u5d ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/SKAP1_HUMAN SKAP1_HUMAN]] Positively regulates T-cell receptor signaling by enhancing the MAP kinase pathway. Required for optimal conjugation between T-cells and antigen-presenting cells by promoting the clustering of integrin ITGAL on the surface of T-cells. May be involved in high affinity immunoglobulin epsilon receptor signaling in mast cells.<ref>PMID:10856234</ref> <ref>PMID:11909961</ref> <ref>PMID:12652296</ref> <ref>PMID:15939789</ref> <ref>PMID:16980616</ref> | + | [https://www.uniprot.org/uniprot/SKAP1_HUMAN SKAP1_HUMAN] Positively regulates T-cell receptor signaling by enhancing the MAP kinase pathway. Required for optimal conjugation between T-cells and antigen-presenting cells by promoting the clustering of integrin ITGAL on the surface of T-cells. May be involved in high affinity immunoglobulin epsilon receptor signaling in mast cells.<ref>PMID:10856234</ref> <ref>PMID:11909961</ref> <ref>PMID:12652296</ref> <ref>PMID:15939789</ref> <ref>PMID:16980616</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Human]] | + | [[Category: Homo sapiens]] |
| - | [[Category: Eck, M J]] | + | [[Category: Large Structures]] |
| - | [[Category: Neel, B G]] | + | [[Category: Eck MJ]] |
| - | [[Category: Swanson, K D]] | + | [[Category: Neel BG]] |
| - | [[Category: Tang, Y]] | + | [[Category: Swanson KD]] |
| - | [[Category: Ph domain]] | + | [[Category: Tang Y]] |
| - | [[Category: Signaling protein]]
| + | |
| Structural highlights
Function
SKAP1_HUMAN Positively regulates T-cell receptor signaling by enhancing the MAP kinase pathway. Required for optimal conjugation between T-cells and antigen-presenting cells by promoting the clustering of integrin ITGAL on the surface of T-cells. May be involved in high affinity immunoglobulin epsilon receptor signaling in mast cells.[1] [2] [3] [4] [5]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
References
- ↑ Kang H, Freund C, Duke-Cohan JS, Musacchio A, Wagner G, Rudd CE. SH3 domain recognition of a proline-independent tyrosine-based RKxxYxxY motif in immune cell adaptor SKAP55. EMBO J. 2000 Jun 15;19(12):2889-99. PMID:10856234 doi:http://dx.doi.org/10.1093/emboj/19.12.2889
- ↑ Wu L, Fu J, Shen SH. SKAP55 coupled with CD45 positively regulates T-cell receptor-mediated gene transcription. Mol Cell Biol. 2002 Apr;22(8):2673-86. PMID:11909961
- ↑ Wang H, Moon EY, Azouz A, Wu X, Smith A, Schneider H, Hogg N, Rudd CE. SKAP-55 regulates integrin adhesion and formation of T cell-APC conjugates. Nat Immunol. 2003 Apr;4(4):366-74. Epub 2003 Mar 24. PMID:12652296 doi:http://dx.doi.org/10.1038/ni913
- ↑ Jo EK, Wang H, Rudd CE. An essential role for SKAP-55 in LFA-1 clustering on T cells that cannot be substituted by SKAP-55R. J Exp Med. 2005 Jun 6;201(11):1733-9. PMID:15939789 doi:http://dx.doi.org/10.1084/jem.20042577
- ↑ Kliche S, Breitling D, Togni M, Pusch R, Heuer K, Wang X, Freund C, Kasirer-Friede A, Menasche G, Koretzky GA, Schraven B. The ADAP/SKAP55 signaling module regulates T-cell receptor-mediated integrin activation through plasma membrane targeting of Rap1. Mol Cell Biol. 2006 Oct;26(19):7130-44. PMID:16980616 doi:http://dx.doi.org/26/19/7130
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