Enterocin 96, a novel class II bacteriocin produced by Enterococcus faecalis WHE 96, isolated from Munster cheese.
Enterococcus faecalis WHE 96, a strain isolated from soft cheese based on its anti-Listeria activity, produced a 5,494-Da bacteriocin that was purified to homogeneity by ultrafiltration and cation-exchange and reversed-phase chromatographies. The amino acid sequence of this bacteriocin, named enterocin 96, was determined by Edman degradation, and its structural gene was sequenced, revealing a double-glycine leader peptide. After a comparison with other bacteriocins, it was shown that enterocin 96 was a new class II bacteriocin that showed very little similarity with known structures. Enterocin 96 was indeed a new bacteriocin belonging to class II bacteriocins. The activity spectrum of enterocin 96 covered a wide range of bacteria, with strong activity against most gram-positive strains but very little or no activity against gram-negative strains.
IPHC-DSA, Université de Strasbourg, CNRS, Illkirch, France.
Esther
E
Izquierdo
Camille
C
Wagner
Eric
E
Marchioni
Dalal
D
Aoude-Werner
Saïd
S
Ennahar
D000900:Anti-Bacterial Agents / Q000378:metabolism* / Q000494:pharmacology; D001426:Bacterial Proteins / Q000235:genetics / Q000378:metabolism*; D001952:Bridged-Ring Compounds / Q000378:metabolism / Q000494:pharmacology; D002611:Cheese / Q000382:microbiology*; D013293:Enterococcus faecalis / Q000235:genetics / Q000378:metabolism*; D006090:Gram-Negative Bacteria / Q000187:drug effects; D006094:Gram-Positive Bacteria / Q000187:drug effects; D008969:Molecular Sequence Data; D021382:Protein Sorting Signals; D017422:Sequence Analysis, DNA; D020539:Sequence Analysis, Protein; D017386:Sequence Homology, Amino Acid
D000900:Anti-Bacterial Agents; D001426:Bacterial Proteins; D001952:Bridged-Ring Compounds; D021382:Protein Sorting Signals; C012306:enterocin