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| | <StructureSection load='2vwf' size='340' side='right'caption='[[2vwf]], [[Resolution|resolution]] 1.58Å' scene=''> | | <StructureSection load='2vwf' size='340' side='right'caption='[[2vwf]], [[Resolution|resolution]] 1.58Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2vwf]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2VWF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2VWF FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2vwf]] 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=2VWF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2VWF FirstGlance]. <br> |
| - | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2h46|2h46]], [[1qg1|1qg1]], [[1cj1|1cj1]], [[1bm2|1bm2]], [[1gfd|1gfd]], [[1fyr|1fyr]], [[1jyu|1jyu]], [[1bmb|1bmb]], [[1jyq|1jyq]], [[1gfc|1gfc]], [[2aob|2aob]], [[1x0n|1x0n]], [[1tze|1tze]], [[1aze|1aze]], [[1gri|1gri]], [[2vvk|2vvk]], [[1io6|1io6]], [[1fhs|1fhs]], [[1zfp|1zfp]], [[1gcq|1gcq]], [[1ghu|1ghu]], [[2aoa|2aoa]], [[1jyr|1jyr]]</div></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]] 1.58Å</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=2vwf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2vwf OCA], [https://pdbe.org/2vwf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2vwf RCSB], [https://www.ebi.ac.uk/pdbsum/2vwf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2vwf ProSAT]</span></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=2vwf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2vwf OCA], [https://pdbe.org/2vwf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2vwf RCSB], [https://www.ebi.ac.uk/pdbsum/2vwf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2vwf ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/GAB2_HUMAN GAB2_HUMAN]] Adapter protein which acts downstream of several membrane receptors including cytokine, antigen, hormone, cell matrix and growth factor receptors to regulate multiple signaling pathways. Regulates osteoclast differentiation mediating the TNFRSF11A/RANK signaling. In allergic response, it plays a role in mast cells activation and degranulation through PI-3-kinase regulation. Also involved in the regulation of cell proliferation and hematopoiesis.<ref>PMID:15750601</ref> <ref>PMID:19172738</ref>
| + | [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> |
| | == 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: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Feller, S M]] | + | [[Category: Feller SM]] |
| - | [[Category: Harkiolaki, M]] | + | [[Category: Harkiolaki M]] |
| - | [[Category: Tsirka, T]] | + | [[Category: Tsirka T]] |
| - | [[Category: Alternative splicing]]
| + | |
| - | [[Category: Golgi apparatus]]
| + | |
| - | [[Category: Grb2]]
| + | |
| - | [[Category: Host-virus interaction]]
| + | |
| - | [[Category: Phosphoprotein]]
| + | |
| - | [[Category: Polymorphism]]
| + | |
| - | [[Category: Protein binding]]
| + | |
| - | [[Category: Protein-binding]]
| + | |
| - | [[Category: Sh2 domain]]
| + | |
| - | [[Category: Sh3 domain]]
| + | |
| - | [[Category: Sh3c]]
| + | |
| - | [[Category: Signaling]]
| + | |
| Structural highlights
Function
GRB2_HUMAN Adapter protein that provides a critical link between cell surface growth factor receptors and the Ras signaling pathway.[1] [2] [3] 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.[4] [5] [6]
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
Grb2 and Gab2 form a complex implicated in normal cell signaling and cancer development. Binding of the Grb2SH3C domain to Gab2 is essential for the interaction, but molecular details remained undefined. Using peptide arrays and isothermal titration calorimetry, two Grb2SH3C binding sites in Gab2 (Gab2a and Gab2b) were confirmed and characterized. Gab2a bears similarity to a p27Kip1 epitope that also binds Grb2SH3C. Crystal structures of both Gab2 epitopes complexed with Grb2SH3C reveal that Gab2b contains a 3(10) helix that positions the arginine and lysine of the core-binding motif RxxK in parallel orientation. In contrast, the Gab2a RxxK motif is embedded in a PPII helix with Arg and Lys in staggered orientation. A similar interaction mode is also present in a new complex of Mona/GadsSH3C with an RxxxxK epitope from the putative phosphatase HD-PTP. In summary, our study reveals interaction types of SH3 domains, highlighting their great versatility.
Distinct binding modes of two epitopes in Gab2 that interact with the SH3C domain of Grb2.,Harkiolaki M, Tsirka T, Lewitzky M, Simister PC, Joshi D, Bird LE, Jones EY, O'Reilly N, Feller SM Structure. 2009 Jun 10;17(6):809-22. PMID:19523899[7]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Lowenstein EJ, Daly RJ, Batzer AG, Li W, Margolis B, Lammers R, Ullrich A, Skolnik EY, Bar-Sagi D, Schlessinger J. The SH2 and SH3 domain-containing protein GRB2 links receptor tyrosine kinases to ras signaling. Cell. 1992 Aug 7;70(3):431-42. PMID:1322798
- ↑ Fath I, Schweighoffer F, Rey I, Multon MC, Boiziau J, Duchesne M, Tocque B. Cloning of a Grb2 isoform with apoptotic properties. Science. 1994 May 13;264(5161):971-4. PMID:8178156
- ↑ Pao-Chun L, Chan PM, Chan W, Manser E. Cytoplasmic ACK1 interaction with multiple receptor tyrosine kinases is mediated by Grb2: an analysis of ACK1 effects on Axl signaling. J Biol Chem. 2009 Dec 11;284(50):34954-63. doi: 10.1074/jbc.M109.072660. Epub, 2009 Oct 8. PMID:19815557 doi:10.1074/jbc.M109.072660
- ↑ Lowenstein EJ, Daly RJ, Batzer AG, Li W, Margolis B, Lammers R, Ullrich A, Skolnik EY, Bar-Sagi D, Schlessinger J. The SH2 and SH3 domain-containing protein GRB2 links receptor tyrosine kinases to ras signaling. Cell. 1992 Aug 7;70(3):431-42. PMID:1322798
- ↑ Fath I, Schweighoffer F, Rey I, Multon MC, Boiziau J, Duchesne M, Tocque B. Cloning of a Grb2 isoform with apoptotic properties. Science. 1994 May 13;264(5161):971-4. PMID:8178156
- ↑ Pao-Chun L, Chan PM, Chan W, Manser E. Cytoplasmic ACK1 interaction with multiple receptor tyrosine kinases is mediated by Grb2: an analysis of ACK1 effects on Axl signaling. J Biol Chem. 2009 Dec 11;284(50):34954-63. doi: 10.1074/jbc.M109.072660. Epub, 2009 Oct 8. PMID:19815557 doi:10.1074/jbc.M109.072660
- ↑ Harkiolaki M, Tsirka T, Lewitzky M, Simister PC, Joshi D, Bird LE, Jones EY, O'Reilly N, Feller SM. Distinct binding modes of two epitopes in Gab2 that interact with the SH3C domain of Grb2. Structure. 2009 Jun 10;17(6):809-22. PMID:19523899 doi:10.1016/j.str.2009.03.017
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