Staphylococcus epidermidis vectors and plasmids表皮葡萄球菌表达质粒载体 BioVector NTCC质粒载体菌种细胞基因保藏中心

Staphylococcus epidermidis vectors and plasmids表皮葡萄球菌表达质粒载体

Most strains of Staphylococcus aureus and Staphylococcus epidermidis possess a strong restriction barrier that hinders exchange of DNA. Recently, major advances have been made in identifying and characterizing the restriction-modification (RM) systems involved. In particular a novel type IV restriction enzyme that recognizes cytosine methylated DNA has been shown to be the major barrier to transfer of plasmid DNA from Escherichia coli into S. aureus and S. epidermidis. While the conserved type I RM system provides a further barrier. Here we review the recent advances in understanding of restriction systems in staphylococci and highlight how this has been exploited to improve our ability to manipulate genetically previously untransformable strains.

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