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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
Lacticin LC14, a new bacteriocin produced by lactococcus lactis BMG6.14: Isolation, purification and partial characterization
Infectious Disorders - Drug Targets, Volume 12, No. 4, Year 2012
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Description
A new bacteriocin, lacticin LC14, produced by Lactococcus lactis BMG6.14, was isolated and characterized. It was purified to homogeneity from overnight broth culture by ammonium sulfate precipitation, Sep-Pak chromatography, and two steps of reversed-phase HPLC. Lacticin LC14 showed bactericidal-type antimicrobial activity against several lactic acid bacteria and pathogenic strains including Listeria monocytogenes. It was inactivated by proteinase K and pronase E, but was resistant to papain, lysozyme, lipase and catalase. Lacticin LC14 was heat resistant, stable over a wide range of pH (2-10) and after treatment by solvents and detergents. Its N-terminal end was found unreactive towards Edman sequencing. Based on MALDI-TOF mass spectrometry, its molecular mass was 3333.7 Da. LC14 amino acid composition revealed a high proportion of hydrophobic residues, but no modified ones. LC14 may be able to challenge other well known other bacteriocins in probiotic and therapeutic applications. © 2012 Bentham Science Publishers.
Authors & Co-Authors
Lasta, Samar
France, Paris
Cnrs Centre National de la Recherche Scientifique
Tunisia, Tunis
Université de Tunis el Manar, Faculté Des Sciences de Tunis
Ouzari, Hadda Imene
Tunisia, Tunis
Université de Tunis el Manar, Faculté Des Sciences de Tunis
Andreotti, Nicolas
France, Marseille
Aix Marseille Université
France, Marseille
Umr 1097
Fajloun, Ziad
France, Marseille
Laboratoire Cellpep S.a.
Lebanon, Beirut
Université Libanaise
Mansuelle, Pascal
France, Paris
Cnrs Centre National de la Recherche Scientifique
France, Marseille
Laboratoire Information Génomique et Structurale
Boudabous, Abdellatif
Tunisia, Tunis
Université de Tunis el Manar, Faculté Des Sciences de Tunis
Sampiéri, François
France, Marseille
Aix Marseille Université
Sabatier, Jean-Marc Marc
France, Marseille
Aix Marseille Université
Statistics
Citations: 8
Authors: 8
Affiliations: 7
Identifiers
Doi:
10.2174/187152612801319276
ISSN:
18715265
e-ISSN:
18755852