PROCESS FOR PRODUCING DNA SEQUENCES AND PLASMIDS COMPRISING SUCH SEQUENCES, AS WELL AS THEIR USE FOR SYNTHESIS OF INTERFERON

摘要

The present invention relates to the combination of the promoter/operator region of the tryptophan operon of Serratia marcescens with a synthetic ribosome binding sequence, an expression plasmid which contains this sequence and in which the above sequence is followed by the only Hind III cleavage site in the plasmid, into which site the gene to be expressed can be inserted, and to production plasmids for the expression of eukaryotic gene products in prokaryotes, especially for the preparation of leucocyte interferon.