1r9v

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[[Image:1r9v.gif|left|200px]]
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{{Seed}}
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[[Image:1r9v.png|left|200px]]
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{{STRUCTURE_1r9v| PDB=1r9v | SCENE= }}
{{STRUCTURE_1r9v| PDB=1r9v | SCENE= }}
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'''NMR Structure of a D,L-Alternating Dodecamer of Norleucine'''
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===NMR Structure of a D,L-Alternating Dodecamer of Norleucine===
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==Overview==
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beta-Helix structures are of particular interest due to their capacity to form transmembrane channels with different transport properties. However, the relatively large number of beta-helices configurations does not allow a direct conformational analysis of beta-helical oligopeptides. A synthetic alternating D,L-oligopeptide with twelve norleucines (XIIMe) has been used as a model to get insight in the conformational features of beta-helix structures. The spatial configuration of XIIMe in solution has been determined by NMR. An extensive set of distances (nuclear Overhauser effect) and dihedral (J coupling constants) constraints have been included in molecular dynamics calculations. The NMR experimental data and theoretical calculations clearly indicate that the XIIMe adopts a single beta(4.4)-helix-type conformation in nonpolar solvents.
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The line below this paragraph, {{ABSTRACT_PUBMED_11373724}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 11373724 is the PubMed ID number.
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{{ABSTRACT_PUBMED_11373724}}
==About this Structure==
==About this Structure==
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Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1R9V OCA].
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Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1R9V OCA].
==Reference==
==Reference==
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[[Category: Beta helix]]
[[Category: Beta helix]]
[[Category: Ion channel]]
[[Category: Ion channel]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 07:15:16 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 15:41:43 2008''

Revision as of 12:41, 29 July 2008

Image:1r9v.png

Template:STRUCTURE 1r9v

NMR Structure of a D,L-Alternating Dodecamer of Norleucine

Template:ABSTRACT PUBMED 11373724

About this Structure

Full experimental information is available from OCA.

Reference

Solution NMR structure of a D,L-alternating oligonorleucine as a model of beta-helix., Navarro E, Tejero R, Fenude E, Celda B, Biopolymers. 2001 Aug;59(2):110-9. PMID:11373724

Page seeded by OCA on Tue Jul 29 15:41:43 2008

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