Purification, partial amino acid sequence and mode of action of pediocin PD-1, a bacteriocin produced by Pediococcus damnosus NCFB 1832.
dc.contributor.author | Bauer R. | |
dc.contributor.author | Chikindas M.L. | |
dc.contributor.author | Dicks L.M. | |
dc.date.accessioned | 2011-05-15T15:56:48Z | |
dc.date.available | 2011-05-15T15:56:48Z | |
dc.date.issued | 2005 | |
dc.description.abstract | Pediocin PD-1 is a ribosomally synthesized antimicrobial peptide produced by Pediococcus damnosus NCFB1832. It inhibits the growth of several food spoilage bacteria, including malolactic bacteria isolated from wine. Pediocin PD-1 is 2866.87+/-0.4 Da in size, has an isoelectric point (pI) of ca. 9.0 and, on amino acid composition, has partial homology to the lantibiotic plantaricin C. The highest activity of pediocin PD-1 against cells of Oenococcus oeni was observed at an external pH of 5.0 and at 25 degrees C. The primary mode of action of pediocin PD-1 is most probably due to pore formation, as indicated by the efflux of K+ from metabolically active cells of O. oeni. In the presence of 10 mM gadolinium (Gd3+), pediocin PD-1 did not affect cells of O. oeni. This suggests that the mode of action of pediocin PD-1 relies on a net negatively charged cell surface. In comparison to nisin, pediocin PD-1 is less active against non-growing cells of O. oeni. | |
dc.description.version | Article | |
dc.identifier.citation | International journal of food microbiology | |
dc.identifier.citation | 101 | |
dc.identifier.citation | 1 | |
dc.identifier.issn | 1681605 | |
dc.identifier.uri | http://hdl.handle.net/10019.1/10049 | |
dc.subject | bacteriocin | |
dc.subject | pediocin PD 1 | |
dc.subject | pediocin PD-1 | |
dc.subject | amino acid sequence | |
dc.subject | article | |
dc.subject | chemistry | |
dc.subject | food contamination | |
dc.subject | food control | |
dc.subject | isoelectric point | |
dc.subject | isolation and purification | |
dc.subject | mass spectrometry | |
dc.subject | metabolism | |
dc.subject | microbiological examination | |
dc.subject | microbiology | |
dc.subject | molecular weight | |
dc.subject | Pediococcus | |
dc.subject | pH | |
dc.subject | sequence alignment | |
dc.subject | sequence homology | |
dc.subject | temperature | |
dc.subject | wine | |
dc.subject | Amino Acid Sequence | |
dc.subject | Bacteriocins | |
dc.subject | Food Contamination | |
dc.subject | Food Microbiology | |
dc.subject | Hydrogen-Ion Concentration | |
dc.subject | Isoelectric Point | |
dc.subject | Mass Spectrometry | |
dc.subject | Microbial Sensitivity Tests | |
dc.subject | Molecular Weight | |
dc.subject | Pediococcus | |
dc.subject | Sequence Alignment | |
dc.subject | Sequence Homology, Amino Acid | |
dc.subject | Temperature | |
dc.subject | Wine | |
dc.title | Purification, partial amino acid sequence and mode of action of pediocin PD-1, a bacteriocin produced by Pediococcus damnosus NCFB 1832. | |
dc.type | Article |