NMR Solution structure of chemically synthesized antilisterial Pediocin PA-1 M31L analog.

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 40000 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

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Synthesis, antimicrobial activity and conformational analysis of the class IIa bacteriocin pediocin PA-1 and analogs thereof.

Bedard, F.Hammami, R.Zirah, S.Rebuffat, S.Fliss, I.Biron, E.

(2018) Sci Rep 8: 9029-9029

  • DOI: https://doi.org/10.1038/s41598-018-27225-3
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The antimicrobial peptide pediocin PA-1 is a class IIa bacteriocin that inhibits several clinically relevant pathogens including Listeria spp. Here we report the synthesis and characterization of whole pediocin PA-1 and novel analogs thereof using a combination of solid- and solution-phase strategies to overcome difficulties due to instability and undesired reactions. Pediocin PA-1 thus synthesized was a potent inhibitor of Listeria monocytogenes (MIC = 6.8 nM), similar to the bacteriocin produced naturally by Pediococcus acidilactici. Of particular interest is that linear analogs lacking both of the disulfide bridges characterizing pediocin PA-1 were as potent. One linear analog was also a strong inhibitor of Clostridium perfringens, another important food-borne pathogen. These results are discussed in light of conformational information derived from circular dichroism, solution NMR spectroscopy and structure-activity relationship studies.

  • Organizational Affiliation

    Faculté de pharmacie, Université Laval and Laboratoire de chimie médicinale, Centre de recherche du CHU de Québec, 2705 Boulevard Laurier, Québec, Québec, G1V 0A6, Canada.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Bacteriocin pediocin PA-1 M31L44Pediococcus acidilacticiMutation(s): 1 
Find proteins for P29430 (Pediococcus acidilactici)
Explore P29430 
Go to UniProtKB:  P29430
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP29430
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 40000 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Fonds de Recherche du Quebec - Nature et Technologies (FRQNT)Canada#2016-PR-191869

Revision History  (Full details and data files)

  • Version 1.0: 2018-06-27
    Type: Initial release