Characterization of a small plasmid from Desulfovibrio desulfuricans and its use for shuttle vector construction.


A 2.3-kb plasmid present in about 20 copies per genome was identified in extracts of Desulfovibrio desulfuricans G100A and designated pBG1. It appears to be unable to replicate in Escherichia coli. Although composite plasmids of pBG1 inserted into pTZ18U are stable in E. coli, few if any pBG1-specific transcripts are detectable. The plasmid sequence reveals… (More)


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