1sbu

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[[Image:1sbu.png|left|200px]]
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==NMR structure of a peptide containing a dimetylthiazolidine : an analog of delta conotoxin EVIA loop 2==
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<StructureSection load='1sbu' size='340' side='right' caption='[[1sbu]], [[NMR_Ensembles_of_Models | 10 NMR models]]' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1sbu]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SBU OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1SBU FirstGlance]. <br>
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</td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=2MT:(4R)-2,2-DIMETHYL-1,3-THIAZOLIDINE-4-CARBOXYLIC+ACID'>2MT</scene></td></tr>
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<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=1sbu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sbu OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1sbu RCSB], [http://www.ebi.ac.uk/pdbsum/1sbu PDBsum]</span></td></tr>
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</table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The delta-conotoxin EVIA from the Conus ermineus venom, a recently characterized toxin, exhibits cis-trans isomerism of the Leu12-Pro13 bond associated with the triggering of its biological activity. In this paper we use the pseudoproline concept to target the presumed bioactive cis conformation. We report the design and the synthesis of loop 2 analogs from residue 8 to 18 containing either the cis-inducing Cys(PsiMe,MePro)13 unit or the natural proline residue. NMR studies in water and molecular modeling allowed us to identify the amide bond "locked" in a cis conformation for as in the suggested bioactive form of the natural toxin.
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{{STRUCTURE_1sbu| PDB=1sbu | SCENE= }}
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A case study of 2,2-dimethylthiazolidine as locked cis proline amide bond: synthesis, NMR and molecular modeling studies of a delta-conotoxin EVIA peptide analog.,Chierici S, Jourdan M, Figuet M, Dumy P Org Biomol Chem. 2004 Sep 7;2(17):2437-41. Epub 2004 Aug 5. PMID:15326523<ref>PMID:15326523</ref>
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===NMR structure of a peptide containing a dimetylthiazolidine : an analog of delta conotoxin EVIA loop 2===
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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_15326523}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[1sbu]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SBU OCA].
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</StructureSection>
[[Category: Chierici, S.]]
[[Category: Chierici, S.]]
[[Category: Dumy, P.]]
[[Category: Dumy, P.]]

Revision as of 08:18, 8 October 2014

NMR structure of a peptide containing a dimetylthiazolidine : an analog of delta conotoxin EVIA loop 2

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