2kbu: Difference between revisions

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-[[Image:2kbu.png|left|200px]]
+==NMR solution structure of Pin1 WW domain mutant with beta turn mimic at position 12==
+<StructureSection load='2kbu' size='340' side='right' caption='[[2kbu]], [[NMR_Ensembles_of_Models | 15 NMR models]]' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>[[2kbu]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2KBU OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2KBU FirstGlance]. <br>
+</td></tr><tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=CFD:(2R,3E,5R)-5-AMINO-2,4-DIMETHYLHEX-3-ENAL'>CFD</scene></td></tr>
+<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Peptidylprolyl_isomerase Peptidylprolyl isomerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=5.2.1.8 5.2.1.8] </span></td></tr>
+<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=2kbu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2kbu OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2kbu RCSB], [http://www.ebi.ac.uk/pdbsum/2kbu PDBsum]</span></td></tr>
+<table>
+== 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/kb/2kbu_consurf.spt"</scriptWhenChecked>
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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/chain_selection.php?pdb_ID=2ata ConSurf].
+<div style="clear:both"></div>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+beta-Turns are common conformations that enable proteins to adopt globular structures, and their formation is often rate limiting for folding. beta-Turn mimics, molecules that replace the i + 1 and i + 2 amino acid residues of a beta-turn, are envisioned to act as folding nucleators by preorganizing the pendant polypeptide chains, thereby lowering the activation barrier for beta-sheet formation. However, the crucial kinetic experiments to demonstrate that beta-turn mimics can act as strong nucleators in the context of a cooperatively folding protein have not been reported. We have incorporated 6 beta-turn mimics simulating varied beta-turn types in place of 2 residues in an engineered beta-turn 1 or beta-bulge turn 1 of the Pin 1 WW domain, a three-stranded beta-sheet protein. We present 2 lines of kinetic evidence that the inclusion of beta-turn mimics alters beta-sheet folding rates, enabling us to classify beta-turn mimics into 3 categories: those that are weak nucleators but permit Pin WW folding, native-like nucleators, and strong nucleators. Strong nucleators accelerate folding relative to WW domains incorporating all alpha-amino acid sequences. A solution NMR structure reveals that the native Pin WW beta-sheet structure is retained upon incorporating a strong E-olefin nucleator. These beta-turn mimics can now be used to interrogate protein folding transition state structures and the 2 kinetic analyses presented can be used to assess the nucleation capacity of other beta-turn mimics.
-{{STRUCTURE_2kbu|  PDB=2kbu  |  SCENE=  }}
+Evaluating {beta}-turn mimics as {beta}-sheet folding nucleators.,Fuller AA, Du D, Liu F, Davoren JE, Bhabha G, Kroon G, Case DA, Dyson HJ, Powers ET, Wipf P, Gruebele M, Kelly JW Proc Natl Acad Sci U S A. 2009 Jun 18. PMID:19541614<ref>PMID:19541614</ref>
-===NMR solution structure of Pin1 WW domain mutant with beta turn mimic at position 12===
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
+</div>
-{{ABSTRACT_PUBMED_19541614}}
+== References ==
+<references/>
-==About this Structure==
+__TOC__
-[[2kbu]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2KBU OCA].
+</StructureSection>
-==Reference==
-<ref group="xtra">PMID:019541614</ref><references group="xtra"/>
 [[Category: Peptidylprolyl isomerase]]
 [[Category: Bhabha, G.]]