Expression and site-directed mutagenesis of the lactococcal abortive phage infection protein AbiK.

Abstract excerpt

Abortive infection mechanisms of Lactococcus lactis form a heterogeneous group of phage resistance systems that act after early phage gene expression. One of these systems, AbiK, aborts infection of the three most prevalent lactococcal phage groups of the dairy industry. In this study, it is demonstrated that the antiphage activity depends on the level of expression of the abiK gene and on the presence of a...

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