1R9V

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


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 25 
  • Conformers Submitted: 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Solution NMR Structure of a D,L-Alternating Oligonorleucine as a Model of Beta-Helix

Navarro, E.Tejero, R.Fenude, E.Celda, B.

(2001) Biopolymers 59: 110-119

  • DOI: 10.1002/1097-0282(200108)59:2<110::AID-BIP1010>3.0.CO;2-S
  • Primary Citation of Related Structures:  
    1R9V

  • PubMed Abstract: 
  • 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 ...

    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.


    Organizational Affiliation

    Departamento de Química Física, Facultat de Químicas, Universitat de Valencia, C/Dr. Moliner, 50, 46100-Burjassot (Valencia), Spain.



Macromolecules

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
BOC-(D-NLE-L-NLE)4-D-NLE(METHYL)-L-NLE-D-NLE-L-NLE METHYL ESTERA13N/AMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
NLE
Query on NLE
A L-PEPTIDE LINKINGC6 H13 N O2LEU
NLO
Query on NLO
A L-PEPTIDE LINKINGC7 H15 N O2LEU
Biologically Interesting Molecules (External Reference) 1 Unique
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 25 
  • Conformers Submitted: 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-12-02
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2012-12-12
    Changes: Other
  • Version 1.4: 2022-02-09
    Changes: Data collection, Database references, Derived calculations