Expression plasmids containing the deo promoter, and bacterial hosts containing the plasmids

Abstract From the Canadian patent

Abstract of the Disclosure, Plasmids are provided which upon introduction into a suitable Escherichia coli host render the host capable of effecting expression of DNA encoding a desired naturallyoccurring polypeptide or polypeptide analog thereof under the control of the deo P1-P2 promoter. Further plasmids are also provided which thermoinducibly direct expression of eucaryotic genes under the control of a .lambda. PL promoter and a thermolabile repressor protein present on the same plasmids under the control of a deo P1 promoter. These plasmids have been inserted into various hosts some of, which contain DNA encoding the repressor protein. Such plasmids may be used to produce polypeptides …