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{{STRUCTURE_3n84|  PDB=3n84  |  SCENE=  }}
==Crystal Structure of the Grb2 SH2 Domain in Complex with a 23-Membered Macrocyclic Ligand Having the Sequence pYVNVP==
===Crystal Structure of the Grb2 SH2 Domain in Complex with a 23-Membered Macrocyclic Ligand Having the Sequence pYVNVP===
<StructureSection load='3n84' size='340' side='right' caption='[[3n84]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
{{ABSTRACT_PUBMED_21116482}}
== Structural highlights ==
<table><tr><td colspan='2'>[[3n84]] is a 12 chain structure with 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=3N84 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3N84 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=011:7-AMINOHEPTANOIC+ACID'>011</scene>, <scene name='pdbligand=PTR:O-PHOSPHOTYROSINE'>PTR</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1bm2|1bm2]], [[3n7y|3n7y]]</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">GRB2, ASH ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3n84 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3n84 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3n84 RCSB], [http://www.ebi.ac.uk/pdbsum/3n84 PDBsum]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The thermodynamic and structural effects of macrocyclization as a tactic for stabilizing the biologically-active conformation of Grb2 SH2 binding peptides were investigated using isothermal titration calorimetry and x-ray crystallography. 23-Membered macrocycles containing the sequence pYVN were slightly more potent than their linear controls; however, preorganization did not necessarily eventuate in a more favorable binding entropy. Structures of complexes of macrocycle 7 and its acyclic control 8 are similar except for differences in relative orientations of corresponding atoms in the linking moieties of 7 and 8. There are no differences in the number of direct or water-mediated protein-ligand contacts that might account for the less favorable binding enthalpy of 7; however, an intramolecular hydrogen bond between the pY and pY+3 residues in 8 that is absent in 7 may be a factor. These studies highlight the difficulties associated with correlating energetics and structure in protein-ligand interactions.


==About this Structure==
Thermodynamic and Structural Effects of Macrocyclization as a Constraining Method in Protein-Ligand Interactions.,Delorbe JE, Clements JH, Whiddon BB, Martin SF ACS Med Chem Lett. 2010 Nov 11;1(8):448-452. PMID:21116482<ref>PMID:21116482</ref>
[[3n84]] is a 12 chain structure with 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=3N84 OCA].
 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>


==See Also==
==See Also==
*[[Growth factor receptor-bound protein|Growth factor receptor-bound protein]]
*[[Growth factor receptor-bound protein|Growth factor receptor-bound protein]]
 
== References ==
==Reference==
<references/>
<ref group="xtra">PMID:021116482</ref><references group="xtra"/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Clements, J H.]]
[[Category: Clements, J H]]
[[Category: Martin, S F.]]
[[Category: Martin, S F]]
[[Category: Golgi apparatus]]
[[Category: Golgi apparatus]]
[[Category: Host-virus interaction]]
[[Category: Host-virus interaction]]
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