2N4K

Solution Structure of Enterocin HF, an Antilisterial Bacteriocin Produced by Enterococcus faecium M3K31


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 20 
  • Conformers Submitted: 20 
  • Selection Criteria: all calculated structures submitted 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Solution Structure of Enterocin HF, an Antilisterial Bacteriocin Produced by Enterococcus faecium M3K31.

Arbulu, S.Lohans, C.T.van Belkum, M.J.Cintas, L.M.Herranz, C.Vederas, J.C.Hernandez, P.E.

(2015) J.Agric.Food Chem. 63: 10689-10695

  • DOI: 10.1021/acs.jafc.5b03882

  • PubMed Abstract: 
  • The solution structure of enterocin HF (EntHF), a class IIa bacteriocin of 43 amino acids produced by Enterococcus faecium M3K31, was evaluated by CD and NMR spectroscopy. Purified EntHF was unstructured in water, but CD analysis supports that EntHF ...

    The solution structure of enterocin HF (EntHF), a class IIa bacteriocin of 43 amino acids produced by Enterococcus faecium M3K31, was evaluated by CD and NMR spectroscopy. Purified EntHF was unstructured in water, but CD analysis supports that EntHF adopts an α-helical conformation when exposed to increasing concentrations of trifluoroethanol. Furthermore, NMR spectroscopy indicates that this bacteriocin adopts an antiparallel β-sheet structure in the N-terminal region (residues 1-17), followed by a well-defined central α-helix (residues 19-30) and a more disordered C-terminal end (residues 31-43). EntHF could be structurally organized into three flexible regions that might act in a coordinated manner. This is in agreement with the absence of long-range nuclear Overhauser effect signals between the β-sheet domain and the C-terminal end of the bacteriocin. The 3D structure recorded for EntHF fits emerging facts regarding target recognition and mode of action of class IIa bacteriocins.


    Organizational Affiliation

    Departamento de Nutrición, Bromatologı́a y Tecnologı́a de los Alimentos, Facultad de Veterinaria, Universidad Complutense de Madrid (UCM) , Avenida Puerta de Hierro s/n, 28040 Madrid, Spain.,Department of Chemistry, University of Alberta , Edmonton, Alberta, Canada T6G 2G2.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Enterocin-HF
A
43Enterococcus faeciumMutation(s): 0 
Gene Names: entHF
Find proteins for P86183 (Enterococcus faecium)
Go to UniProtKB:  P86183
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 20 
  • Conformers Submitted: 20 
  • Selection Criteria: all calculated structures submitted 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-12-02
    Type: Initial release
  • Version 1.1: 2015-12-23
    Type: Database references
  • Version 1.2: 2016-01-06
    Type: Database references