Membrane-bound fractions of R6K plasmid DNA in Escherichia coli.
AUTOR(ES)
Archibold, E R
RESUMO
The intracellular location of plasmid DNA has been of interest in an effort to understand the maintenance of these molecules. We have employed a simple procedure which enables us to isolate from exponentially grown cells on sucrose gradients membrane-complexed forms of R6K plasmid DNA. Electron micrographs identified the complexing of membrane fractions to circular forms of R6K DNA. Biochemical studies of the complexed R6K molecules showed the presence of membrane-specific proteins and suggested that complexing of R6K DNA was primarily with inner membrane fractions of Escherichia coli.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=215097Documentos Relacionados
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