1EE7

NMR STRUCTURE OF THE PEPTAIBOL CHRYSOSPERMIN C BOUND TO DPC MICELLES

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 1 
  • Selection Criteria: MINIMIZED DG STRUCTURE, CLOSEST TO AVERAGE STRUCTURE 

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This is version 1.4 of the entry. See complete history. 

Literature

The NMR Solution Structure of the Ion Channel Peptaibol Chrysospermin C Bound to Dodecylphosphocholine Micelles.

Anders, R., Ohlenschlager, O., Soskic, V., Wenschuh, H., Heise, B., Brown, L.R.

(2000) Eur.J.Biochem. 267: 1784


  • PubMed Abstract: 

    • Chrysospermin C is a 19-residue peptaibol capable of forming transmembrane ion channels in phospholipid bilayers. The conformation of chrysospermin C bound to dodecylphosphocholine micelles has been solved using heteronuclear NMR spectroscopy. Select ...

    Chrysospermin C is a 19-residue peptaibol capable of forming transmembrane ion channels in phospholipid bilayers. The conformation of chrysospermin C bound to dodecylphosphocholine micelles has been solved using heteronuclear NMR spectroscopy. Selective 15N-labeling and 13C-labeling of specific alpha-aminoisobutyric acid residues was used to obtain complete stereospecific assignments for all eight alpha-aminoisobutyric acid residues. Structures were calculated using 339 distance constraints and 40 angle constraints obtained from NMR data. The NMR structures superimpose with mean global rmsd values to the mean structure of 0. 27 A (backbone heavy atoms) and 0.42 A (all heavy atoms). Chrysospermin C bound to decylphosphocholine micelles displays two well-defined helices at the N-terminus (residues Phe1-Aib9) and C-terminus (Aib13-Trp-ol19). A slight bend preceding Pro14, i.e. encompassing residues 10-12, results in an angle of approximately 38 degrees between the mean axes of the two helical regions. The bend structure observed for chrysospermin C is compatible with the sequences of all 18 long peptaibols and may represent a common 'active' conformation. The structure of chrysospermin C shows clear hydrophobic and hydrophilic surfaces which would be appropriate for the formation of oligomeric ion channels.

    Organizational Affiliation: 

    Institut für Molekulare Biotechnologie, Jena, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CHRYSOSPERMIN C
A
20N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Biologically Interesting Molecules 1 Unique
IDChainsNameType/Class2D Diagram3D Interactions
PRD_000162
Query on PRD_000162		AChrysospermin-CPeptaibol / Antibiotic

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Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 1 
  • Selection Criteria: MINIMIZED DG STRUCTURE, CLOSEST TO AVERAGE STRUCTURE 

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-05-10
    Type: Initial release
  • Version 1.1: 2011-06-14
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2011-07-27
    Type: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary
  • Version 1.4: 2012-12-12
    Type: Other