1f2f

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[[Image:1f2f.png|left|200px]]
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==SRC SH2 THREF1TRP MUTANT==
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<StructureSection load='1f2f' size='340' side='right' caption='[[1f2f]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1f2f]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1F2F OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1F2F FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene><br>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1f1w|1f1w]]</td></tr>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Transferase Transferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.10.1 and 2.7.10.2 2.7.10.1 and 2.7.10.2] </span></td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1f2f FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1f2f OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1f2f RCSB], [http://www.ebi.ac.uk/pdbsum/1f2f PDBsum]</span></td></tr>
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<table>
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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/f2/1f2f_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/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The Src SH2 domain binds pYEEI-containing phosphopeptides in an extended conformation with a hydrophobic pocket, which includes ThrEF1, binding Ile(pY +3). Mutating ThrEF1 to tryptophan switches specificity to an Asn(pY +2) requirement, yielding a biological mimic of the Grb2 SH2 domain. Here we show that the Src ThrEF1Trp SH2 domain mutant binds pYVNV phosphopeptides in a beta turn conformation, which, despite differing conformations of the interacting tryptophan, closely resembles the native Grb2/pYVNV cognate peptide binding mode. The ThrEF1Trp substitution therefore switches specificity by physically occluding the pTyr +3 binding pocket and by providing additional interaction surface area for Asn(pY +2). This demonstrates structurally how novel SH2 domain specificities may rapidly evolve through single amino acid substitutions and suggests how new signaling pathways may develop.
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{{STRUCTURE_1f2f| PDB=1f2f | SCENE= }}
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Structural basis for specificity switching of the Src SH2 domain.,Kimber MS, Nachman J, Cunningham AM, Gish GD, Pawson T, Pai EF Mol Cell. 2000 Jun;5(6):1043-9. PMID:10911998<ref>PMID:10911998</ref>
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===SRC SH2 THREF1TRP MUTANT===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_10911998}}
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==About this Structure==
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[[1f2f]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1F2F OCA].
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==See Also==
==See Also==
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*[[Proto-oncogene tyrosine-protein kinase|Proto-oncogene tyrosine-protein kinase]]
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*[[Tyrosine kinase|Tyrosine kinase]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:010911998</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Gallus gallus]]
[[Category: Gallus gallus]]
[[Category: Transferase]]
[[Category: Transferase]]

Revision as of 12:21, 28 September 2014

SRC SH2 THREF1TRP MUTANT

1f2f, resolution 1.70Å

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