View source for 2eot


==SOLUTION STRUCTURE OF EOTAXIN, AN ENSEMBLE OF 32 NMR SOLUTION STRUCTURES==
<StructureSection load='2eot' size='340' side='right'caption='[[2eot]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2eot]] 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=2EOT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2EOT FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR, 32 models</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=2eot FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2eot OCA], [https://pdbe.org/2eot PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2eot RCSB], [https://www.ebi.ac.uk/pdbsum/2eot PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2eot ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CCL11_HUMAN CCL11_HUMAN] In response to the presence of allergens, this protein directly promotes the accumulation of eosinophils, a prominent feature of allergic inflammatory reactions. Binds to CCR3.
== 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/eo/2eot_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=2eot ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The solution structure of the CCR3-specific chemokine, eotaxin, has been determined by NMR spectroscopy. The quaternary structure of eotaxin was investigated by ultracentrifugation and NMR, and it was found to be in equilibrium between monomer and dimer under a wide range of conditions. At pH &lt;/= 5 and low ionic strength, eotaxin was found to be predominantly a monomer. The three-dimensional structure of the eotaxin monomer solved at pH 5.0 revealed that it has a typical chemokine fold, which includes a 3-stranded beta-sheet and an overlying alpha-helix. Except for the N-terminal residues (residues 1-8), the core of the protein is well defined. The eotaxin structure is compared with the chemokines regulated upon activation, normal T-cell expressed and secreted (RANTES) and monocyte chemoattractant protein-1 (MCP-1); eotaxin binds only CC chemokine receptor CCR3, whereas RANTES binds many receptors including CCR3, and MCP-1 binds a distinct receptor, CCR2. The RMSD of the eotaxin ensemble of structures with the RANTES average minimized monomeric subunit is 5.52 +/- 0.87 A over all backbone atoms and 1.14 +/- 0.09 A over backbone atoms of residues 11-28 and 34-65. The most important difference between the structures is in the N-terminal residues that are unstructured in eotaxin but structured in RANTES and MCP-1. Several residues in the loop region of RANTES show similar packing in eotaxin (residues 11-17). As the N-terminal and loop regions have been shown to be critical for receptor binding and signaling, this structure will be useful for determining the basis for CCR3 selectivity of the eotaxin.

Solution structure of eotaxin, a chemokine that selectively recruits eosinophils in allergic inflammation.,Crump MP, Rajarathnam K, Kim KS, Clark-Lewis I, Sykes BD J Biol Chem. 1998 Aug 28;273(35):22471-9. PMID:9712872<ref>PMID:9712872</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2eot" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Clark-Lewis I]]
[[Category: Crump MP]]
[[Category: Kim K-S]]
[[Category: Rajarathnam K]]
[[Category: Sykes BD]]