abstract |
The present invention is directed to recombinant hosts which contain and express the HpaII Type-II restriction endonuclease gene. The present invention is also directed to vectors or DNA molecules which contain this gene, and to methods of producing the enzyme. One source of this enzyme is Haemophilus parainfluenzae, although other microorganisms may be used to isolate the restriction endonuclease isoschizomers of the invention. |