1jyu

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[[Image:1jyu.jpg|left|200px]]
 
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==Xray Structure of Grb2 SH2 Domain==
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The line below this paragraph, containing "STRUCTURE_1jyu", creates the "Structure Box" on the page.
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<StructureSection load='1jyu' size='340' side='right'caption='[[1jyu]], [[Resolution|resolution]] 2.75&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'>[[1jyu]] is a 1 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=1JYU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1JYU FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 2.75&#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=1jyu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jyu OCA], [https://pdbe.org/1jyu PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1jyu RCSB], [https://www.ebi.ac.uk/pdbsum/1jyu PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1jyu ProSAT]</span></td></tr>
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{{STRUCTURE_1jyu| PDB=1jyu | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/GRB2_HUMAN GRB2_HUMAN] Adapter protein that provides a critical link between cell surface growth factor receptors and the Ras signaling pathway.<ref>PMID:1322798</ref> <ref>PMID:8178156</ref> <ref>PMID:19815557</ref> Isoform 2 does not bind to phosphorylated epidermal growth factor receptor (EGFR) but inhibits EGF-induced transactivation of a RAS-responsive element. Isoform 2 acts as a dominant negative protein over GRB2 and by suppressing proliferative signals, may trigger active programmed cell death.<ref>PMID:1322798</ref> <ref>PMID:8178156</ref> <ref>PMID:19815557</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/jy/1jyu_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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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=1jyu ConSurf].
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<div style="clear:both"></div>
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'''Xray Structure of Grb2 SH2 Domain'''
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==See Also==
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*[[Growth factor receptor-bound proteins 3D structures|Growth factor receptor-bound proteins 3D structures]]
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== References ==
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==Overview==
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<references/>
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The activation of growth factor receptors induces phosphorylation of tyrosine residues in its C-terminal part, creating binding sites for SH2 domain-containing proteins. Grb2 is a protein that recruits Sos, the exchange factor for Ras. Recruitment of Sos allows for Ras activation and subsequent signal transmission. This promotes translocation of MAP kinases into the nucleus and activation of early transcription factors. Grb2, a 25 kDa protein, is composed of one SH2 domain surrounded by two SH3 domains. The SH2 domain of Grb2 binds to class II phosphotyrosyl peptides with the consensus sequence pYXNX. Thus, Grb2 is a good example of a bifunctional adaptor protein that brings proteins into close proximity, allowing signal transduction through proteins located in different compartments.To explore the interactions between Grb2 and phosphorylated ligands, we have solved the crystal structure of complexes between the Grb2-SH2 domain and peptides corresponding to Shc-derived sequences. Two structures are described: the Grb2-SH2 domain in complex with PSpYVNVQN at 1.5 A; and the Grb2-SH2 domain in complex with mAZ*-pY-(alphaMe)pY-N-NH2 pseudo-peptide, at 2 A. Both are compared to an unliganded SH2 structure determined at 2.7 A which, interestingly enough, forms a dimer through two swapping subdomains from two symmetry-related molecules. The nanomolar affinity of the mAZ-pY-(alphaMe)pY-N-NH2 pseudo-peptide for Grb2-SH2 is related to new interactions with non- conserved residues.The design of Grb2-SH2 domain inhibitors that prevent interaction with tyrosine kinase proteins or other adaptors like Shc or IRS1 should provide a means to interrupt the Ras signaling pathway. Newly synthesized pseudo-peptides exhibit nanomolar affinities for the Grb2-SH2 domain. It will then be possible to design new inhibitors with similar affinity and simpler chemical structures.
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__TOC__
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</StructureSection>
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==About this Structure==
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1JYU is a [[Single protein]] structure of sequence 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=1JYU OCA].
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==Reference==
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Crystal structures of the SH2 domain of Grb2: highlight on the binding of a new high-affinity inhibitor., Nioche P, Liu WQ, Broutin I, Charbonnier F, Latreille MT, Vidal M, Roques B, Garbay C, Ducruix A, J Mol Biol. 2002 Feb 1;315(5):1167-77. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11827484 11827484]
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Broutin, I.]]
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[[Category: Broutin I]]
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[[Category: Charbonnier, F.]]
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[[Category: Charbonnier F]]
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[[Category: Ducruix, A.]]
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[[Category: Ducruix A]]
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[[Category: Garbay, C.]]
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[[Category: Garbay C]]
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[[Category: Latreille, M T.]]
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[[Category: Latreille M-T]]
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[[Category: Liu, W Q.]]
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[[Category: Liu W-Q]]
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[[Category: Nioche, P.]]
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[[Category: Nioche P]]
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[[Category: Roques, B.]]
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[[Category: Roques B]]
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[[Category: Vidal, M.]]
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[[Category: Vidal M]]
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[[Category: Receptor binding]]
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[[Category: Regulatory]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 22:05:33 2008''
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Current revision

Xray Structure of Grb2 SH2 Domain

PDB ID 1jyu

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