1l3y: Difference between revisions

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OCA

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 == Structural highlights ==
 <table><tr><td colspan='2'>[[1l3y]] 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=1L3Y OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1L3Y FirstGlance]. <br>
-</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR, 15 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=1l3y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1l3y OCA], [https://pdbe.org/1l3y PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1l3y RCSB], [https://www.ebi.ac.uk/pdbsum/1l3y PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1l3y ProSAT]</span></td></tr>
 </table>
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    <jmolCheckbox>
      <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/l3/1l3y_consurf.spt"</scriptWhenChecked>
-     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
+     <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=1l3y ConSurf].
 <div style="clear:both"></div>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+Cysteine-rich repeats in the integrin beta subunit stalk region relay activation signals to the ligand-binding headpiece. The NMR solution structure and disulfide bond connectivity of Cys-rich module-3 of the integrin beta2 subunit reveal a nosecone-shaped variant of the EGF fold, termed an integrin-EGF (I-EGF) domain. Interdomain contacts between I-EGF domains 2 and 3 observed by NMR support a model in which the modules are related by an approximate two-fold screw axis in an extended arrangement. Our findings complement a 3.1 A crystal structure of the extracellular portion of integrin alphaVbeta3, which lacks an atomic model for I-EGF2 and a portion of I-EGF3. The disulfide connectivity of I-EGF3 chemically assigned here differs from the pairings suggested in the alphaVbeta3 structure. Epitopes that become exposed upon integrin activation and residues that restrain activation are defined in beta2 I-EGF domains 2 and 3. Superposition on the alphaVbeta3 structure reveals that they are buried. This observation suggests that the highly bent alphaVbeta3 structure represents the inactive conformation and that release of contacts with I-EGF modules 2 and 3 triggers a switchblade-like opening motion extending the integrin into its active conformation.
+Cysteine-rich module structure reveals a fulcrum for integrin rearrangement upon activation.,Beglova N, Blacklow SC, Takagi J, Springer TA Nat Struct Biol. 2002 Apr;9(4):282-7. PMID:11896403<ref>PMID:11896403</ref>
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
+</div>
+<div class="pdbe-citations 1l3y" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>