The construction of Streptomyces cyaneus genomic libraries in Escherichia coli is dependent upon the use of Mcr-deficient strains

P. Wang, S. S. Harvey, P. F G Sims, P. Broda

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Streptomyces cyaneus genomic DNA ligated into either λ phage or plasmid vectors was very inefficiently cloned into standard Escherichia coli host strains. However, the same material could be efficiently cloned using Mcr-deficient E. coli strains. These results suggest that the S. cyaneus genome contains 5-methylcytosine residues, some of which occur within the recognition sequences of the E. coli Mcr restriction system.
    Original languageEnglish
    Pages (from-to)127-129
    Number of pages2
    JournalGene
    Volume119
    Issue number1
    Publication statusPublished - 1992

    Keywords

    • genomic libraries
    • methylated DNA
    • phage λ vectors
    • plasmid vectors
    • restriction systems

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