A METHOD FOR RECOVERING ANIMAL GROWTH HORMONE (EG. BOVINE, CHICKEN, HUMAN) FROM A BACTERIAL CELL INTO WHICH THE ANIMAL HORMONE HAS BEEN GENETICALLY ENGINEERED

摘要

Disclosed is an improved plasmid which upon introduction into a suitable Escherichia coli host cell containing the thermolabile repressor CI, renders the host cell capable, upon increasing the temperature of the host cell to a temerature at which the repressor is destroyed, of effecting expression of a gene encoding superoxide dismutase inserted into the vector, and production of the superoxide dismutase encoded by the gene.