Abstract
Two hybrid plasmids capable of acting as shuttle cloning vectors inAnacystis nidulans andBacillus subtilis were constructed by in vitro ligation. One construct, pMG202, consists of theB. subtilis vector pNN101 and the endogenous cyanobacterial plasmid pUH24. This 14.6 kb plasmid confers chloramphenicol resistance in both hosts and tetracycline resistance inB. subtilis. A second vector, pMG101, consists of pNN101 linked to theA. nidulans-Escherichia coli chimeric plasmid pCB4 and is 12.9 kb in size. The pCB4 portion of the vector enables pMG101 to replicate in the third host,E. coli, and confers ampicillin resistance in this bacterium as well as inA. nidulans. Both plasmids possess identical uniqueStu I sites which permit insertional inactivation of the chloramphenicol resistance gene; and, in addition, identical uniqueXho I sites are present on both vectors. Each vector also has a third unique site:Sma I on pMG101 andXba I on pMG202.
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Gallagher, M.L., Burke, W.F. Construction of hybrid plasmid vectors for cloning inEscherichia coli, Bacillus subtilis, and the cyanobacteriumAnacystis nidulans . Current Microbiology 16, 43–47 (1987). https://doi.org/10.1007/BF01568168
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DOI: https://doi.org/10.1007/BF01568168