1IIJ

SOLUTION STRUCTURE OF THE NEU/ERBB-2 MEMBRANE SPANNING SEGMENT


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 20 
  • Conformers Submitted: 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Evidence for an alpha-helix --> pi-bulge helicity modulation for the neu/erbB-2 membrane-spanning segment. A 1H NMR and circular dichroism study.

Goetz, M.Carlotti, C.Bontems, F.Dufourc, E.J.

(2001) Biochemistry 40: 6534-6540


  • PubMed Abstract: 
  • The 35-residue peptide corresponding to the very hydrophobic transmembrane region of the tyrosine kinase receptor neu, Neu(TM35), has been synthesized. The peptide can be solubilized in millimolar concentrations in TFE or incorporated into an SDS-wat ...

    The 35-residue peptide corresponding to the very hydrophobic transmembrane region of the tyrosine kinase receptor neu, Neu(TM35), has been synthesized. The peptide can be solubilized in millimolar concentrations in TFE or incorporated into an SDS-water micellar solution or into well-hydrated DMPC/DCPC bicelles. In all these media, circular dichroism demonstrated that the peptide adopts a helical structure for about 80% of its amino acids. The peptide is monomeric below 2 mM in TFE, as also determined by variable concentration experiments. The three-dimensional solution structure in TFE has been obtained by homonuclear proton NMR and shows a well-defined alpha-helix from residues 4 to 21, then a pi-bulge from Ile(22) to Gly(28), and a final short alpha-helix from positions 29 to 32. This experimental finding is in agreement with structures predicted recently by molecular dynamics calculations in a vacuum [Sajot, N., and Genest, M. (2000) Eur. Biophys. J. 28, 648-662]. The biological implications of a possible retention of this structure in a membrane environment are finally discussed.


    Organizational Affiliation

    Institut Européen de Chimie et de Biologie, Ecole Polytechnique, CNRS & Universités de Bordeaux I et II, Talence, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ERBB-2 RECEPTOR PROTEIN-TYROSINE KINASE
A
35Rattus norvegicusMutation(s): 0 
Gene Names: Erbb2 (Neu)
EC: 2.7.10.1
Find proteins for P06494 (Rattus norvegicus)
Go to UniProtKB:  P06494
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 20 
  • Conformers Submitted: 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 1IIJ Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-06-27
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance