1d4t

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[[Image:1d4t.gif|left|200px]]
 
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==CRYSTAL STRUCTURE OF THE XLP PROTEIN SAP IN COMPLEX WITH A SLAM PEPTIDE==
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The line below this paragraph, containing "STRUCTURE_1d4t", creates the "Structure Box" on the page.
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<StructureSection load='1d4t' size='340' side='right'caption='[[1d4t]], [[Resolution|resolution]] 1.10&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1d4t]] is a 2 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=1D4T OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1D4T FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.1&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1d4t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1d4t OCA], [https://pdbe.org/1d4t PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1d4t RCSB], [https://www.ebi.ac.uk/pdbsum/1d4t PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1d4t ProSAT]</span></td></tr>
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{{STRUCTURE_1d4t| PDB=1d4t | SCENE= }}
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</table>
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== Disease ==
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'''CRYSTAL STRUCTURE OF THE XLP PROTEIN SAP IN COMPLEX WITH A SLAM PEPTIDE'''
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[https://www.uniprot.org/uniprot/SH21A_HUMAN SH21A_HUMAN] Defects in SH2D1A are a cause of lymphoproliferative syndrome X-linked type 1 (XLP1) [MIM:[https://omim.org/entry/308240 308240]; also known as X-linked lymphoproliferative disease (XLPD) or Duncan disease. XLP is a rare immunodeficiency characterized by extreme susceptibility to infection with Epstein-Barr virus (EBV). Symptoms include severe or fatal mononucleosis, acquired hypogammaglobulinemia, pancytopenia and malignant lymphoma.<ref>PMID:11477068</ref> <ref>PMID:9771704</ref> <ref>PMID:11823424</ref> <ref>PMID:10598819</ref> <ref>PMID:11049992</ref> <ref>PMID:11034354</ref> <ref>PMID:11493483</ref> <ref>PMID:14674764</ref> <ref>PMID:15841490</ref> <ref>PMID:16720617</ref>
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== Function ==
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[https://www.uniprot.org/uniprot/SH21A_HUMAN SH21A_HUMAN] Inhibitor of the SLAM self-association. Acts by blocking recruitment of the SH2-domain-containing signal-transduction molecule SHP-2 to a docking site in the SLAM cytoplasmic region. Mediates interaction between FYN and SLAMF1. May also regulate the activity of the neurotrophin receptors NTRK1, NTRK2 and NTRK3.
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==Overview==
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== Evolutionary Conservation ==
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SAP, the product of the gene mutated in X-linked lymphoproliferative syndrome (XLP), consists of a single SH2 domain that has been shown to bind the cytoplasmic tail of the lymphocyte coreceptor SLAM. Here we describe structures that show that SAP binds phosphorylated and nonphosphorylated SLAM peptides in a similar mode, with the tyrosine or phosphotyrosine residue inserted into the phosphotyrosine-binding pocket. We find that specific interactions with residues N-terminal to the tyrosine, in addition to more characteristic C-terminal interactions, stabilize the complexes. A phosphopeptide library screen and analysis of mutations identified in XLP patients confirm that these extended interactions are required for SAP function. Further, we show that SAP and the similar protein EAT-2 recognize the sequence motif TIpYXX(V/I).
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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==About this Structure==
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<jmolCheckbox>
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1D4T is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1D4T OCA].
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/d4/1d4t_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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==Reference==
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<text>to colour the structure by Evolutionary Conservation</text>
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Crystal structures of the XLP protein SAP reveal a class of SH2 domains with extended, phosphotyrosine-independent sequence recognition., Poy F, Yaffe MB, Sayos J, Saxena K, Morra M, Sumegi J, Cantley LC, Terhorst C, Eck MJ, Mol Cell. 1999 Oct;4(4):555-61. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10549287 10549287]
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</jmolCheckbox>
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</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=1d4t ConSurf].
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<div style="clear:both"></div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Protein complex]]
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[[Category: Large Structures]]
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[[Category: Eck, M J.]]
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[[Category: Eck MJ]]
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[[Category: Poy, F.]]
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[[Category: Poy F]]
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[[Category: Saxena, K.]]
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[[Category: Saxena K]]
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[[Category: Sayos, J.]]
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[[Category: Sayos J]]
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[[Category: Yaffe, M B.]]
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[[Category: Yaffe MB]]
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[[Category: Peptide recognition]]
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[[Category: Sh2 domain]]
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[[Category: Signal transduction]]
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[[Category: Tyrosine kinase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 13:27:09 2008''
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Current revision

CRYSTAL STRUCTURE OF THE XLP PROTEIN SAP IN COMPLEX WITH A SLAM PEPTIDE

PDB ID 1d4t

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