2JQ2

NMR structure of the anticoccidial peptide PW2 in DPC micelles


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 18 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Effect of micelle interface on the binding of anticoccidial PW2 peptide

Tinoco, L.W.Gomes-Neto, F.Valente, A.P.Almeida, F.C.

(2007) J.Biomol.Nmr 39: 315-322

  • DOI: 10.1007/s10858-007-9202-6

  • PubMed Abstract: 
  • PW2 is an anticoccidial peptide active against Eimeria acervulina and Eimeria tenella. We determined the structure of PW2 in dodecylphosphocholine micelles. The structure showed two distinct regions: an amphipathic N-terminal 3(10) helix and an aroma ...

    PW2 is an anticoccidial peptide active against Eimeria acervulina and Eimeria tenella. We determined the structure of PW2 in dodecylphosphocholine micelles. The structure showed two distinct regions: an amphipathic N-terminal 3(10) helix and an aromatic region containing WWR interface-binding motif. The aromatic region acted as a scaffold of the protein in the interface and shared the same structure in both DPC and SDS micelles. N-terminal helix interacted with DPC but not with SDS interface. Chemical shift change was slow when SDS was added to PW2 in DPC and fast when DPC was added to PW2 in SDS, indicating that interaction with DPC micelles was kinetically more stable than with SDS micelles. Also, DPC interface was able to accommodate PW2, but it maintained the conformational arrangement in the aromatic region observed for SDS micelles. This behavior, which is different from that observed for other antimicrobial peptides with WWR motif, may be associated with the absence of PW2 antibacterial activity and its selectivity for Eimeria parasites.


    Related Citations: 
    • NMR structure of PW2 bound to SDS micelles. A tryptophan-rich anticoccidial peptide selected from phage display libraries.
      Tinoco, L.W.,DaSilva Jr., A.,Leite, A.,Valente, A.,Almeida, F.C.L.
      (2002) J.Biol.Chem. 277: 36351


    Organizational Affiliation

    Nucleo de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-590, Brazil.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
pw2
A
12N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 18 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2JQ2 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-10-16
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance