detection and characterization of weissellicin 110, a bacteriocin produced by weissella cibaria

Detection and Characterization of Weissellicin 110, a Bacteriocin Produced by Weissella cibaria

Background: Weissellicin 110 is the only bacteriocin reported in Weissella cibaria up to now. This bacteriocin represents several unique features. This is the first report on the gene sequence that encodes for the bacteriocin. Objectives: Providing a rapid detection method to isolate the weissellicin 110 encoding gene and determination of the bacteriocin distribution were the objectives. Materi...

Purification and Characterization of Bacteriocin Produced by Weissella confusa A3 of Dairy Origin

A dramatic increase in bacterial resistance towards currently available antibiotics has raised worldwide concerns for public health. Therefore, antimicrobial peptides (AMPs) have emerged as a promisingly new group of therapeutic agents for managing infectious diseases. The present investigation focusses on the isolation and purification of a novel bacteriocin from an indigenous sample of cow mi...

Detection and activity of a bacteriocin produced by Leuconostoc mesenteroides.

Leuconostoc mesenteroides UL5 was found to produce a bacteriocin, referred as mesenterocin 5, active against Listeria monocytogenes strains but with no effect on several useful lactic acid bacteria. The antimicrobial substance is a protein, since its activity was completely destroyed following protease (pronase) treatment. However, it was relatively heat stable (100 degrees C for 30 min) and pa...

Purification and Characterization of Bacteriocin Produced by Streptococcus Phocae Pi80

Characterization of a minimal pKW2124 replicon from Weissella cibaria KLC140 and its application for the construction of the Weissella expression vector pKUCm1

A 2.1-kb plasmid was previously isolated from Weissella cibaria KLC140 in kimchi and cloned into pUC19 along with the slpA and gfp genes, resulting in an 8.6-kb pKWCSLGFP construct for use as a novel surface display vector. To reduce the size of the vector, the minimal replicon of pKW2124 was determined. The pKW2124 plasmid contains a putative origin of replication (ori), a potential ribosomal ...

Identification of nucleotide sequence involved in Weissellicin L production

BACKGROUND Weissellicin L, a novel bacteriocin produced by Weissella hellenica 4-7, was previously characterized but its full amino acid sequence remain unknown. The draft genome sequencing analysis of Weissella hellenica 4-7 was performed and the open reading frame (ORF) encoding the weissellicin L was identified and clarified. FINDINGS The obtained results indicated that the mature bacterio...