Characterization and mechanism of action of cerein 7, a bacteriocin produced by Bacillus cereus Bc7.

Abstract:

:Cerein 7 is a peptidic antibiotic produced by Bacillus cereus Bc7 (CECT 5148) at the end of exponential growth but before sporulation onset. Cerein 7 has a broad spectrum of antibacterial activity against Gram-positive bacteria, but it is inactive against Gram-negative bacteria. The sequence of its amino-terminal end and its characteristics of hydrophobicity and molecular mass make cerein 7 unique among the bacteriocins produced by the soil bacterium B. cereus. In this paper a further characterization of cerein 7 is presented, it is shown that it can be classified as a Klaenhammer's class II bacteriocin and that its mode of action corresponds to that of a membrane-active compound.

journal_name

J Appl Microbiol

authors

Oscáriz JC,Pisabarro AG

doi

10.1046/j.1365-2672.2000.01123.x

subject

Has Abstract

pub_date

2000-08-01 00:00:00

pages

361-9

issue

2

eissn

1364-5072

issn

1365-2672

pii

jam1123

journal_volume

89

pub_type

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