View source for 2gtj


==Reduced form of ADAP hSH3-N-domain==
<StructureSection load='2gtj' size='340' side='right'caption='[[2gtj]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2gtj]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2GTJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2GTJ FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=2gtj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2gtj OCA], [https://pdbe.org/2gtj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2gtj RCSB], [https://www.ebi.ac.uk/pdbsum/2gtj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2gtj ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/FYB1_HUMAN FYB1_HUMAN] Congenital autosomal recessive small-platelet thrombocytopenia. The disease is caused by variants affecting the gene represented in this entry.
== Function ==
[https://www.uniprot.org/uniprot/FYB1_HUMAN FYB1_HUMAN] Acts as an adapter protein of the FYN and LCP2 signaling cascades in T-cells (By similarity). May play a role in linking T-cell signaling to remodeling of the actin cytoskeleton (PubMed:10747096, PubMed:16980616). Modulates the expression of IL2 (By similarity). Involved in platelet activation (By similarity). Prevents the degradation of SKAP1 and SKAP2 (PubMed:15849195). May be involved in high affinity immunoglobulin epsilon receptor signaling in mast cells (By similarity).[UniProtKB:D3ZIE4][UniProtKB:O35601]<ref>PMID:10747096</ref> <ref>PMID:15849195</ref> <ref>PMID:16980616</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/gt/2gtj_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=2gtj ConSurf].
<div style="clear:both"></div>
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== Publication Abstract from PubMed ==
Oxidation-induced conformational changes in proteins provide a powerful mechanism to sense the redox state of a living cell. In contrast to the unspecific and often irreversible oxidation of intracellular proteins during severe oxidative stress, regulatory redox events need to have specific and transient effects on cellular targets. Here we present evidence for the reversible formation of a vicinal disulfide bond in a prototypic protein interaction domain. NMR spectroscopy was used to determine the structure of the N-terminal hSH3 domain (hSH3N) of the immune cell protein ADAP (adhesion and degranulation promoting adapter protein) in the reduced and oxidized states. An eight-membered ring formed upon oxidation of two neighboring cysteines leads to significant changes in the variable arginine-threonine (RT) loop of the hSH3N domain and alters the helix-sheet packing of the domain. The redox potential for this structural transition is -228 mV at pH 7.4. This is compatible with a role of the cysteinylcysteine moiety in redox signaling during T cell activation.

Redox-regulated conformational changes in an SH3 domain.,Zimmermann J, Kuhne R, Sylvester M, Freund C Biochemistry. 2007 Jun 12;46(23):6971-7. Epub 2007 May 19. PMID:17511475<ref>PMID:17511475</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2gtj" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Freund C]]
[[Category: Kuehne R]]
[[Category: Zimmermann J]]